@article{Gerhardt2003,
  author    = {Gerhardt, Hans Joachim},
  title     = {Rauchableitung und deren Effektivit{\"a}t in der 4. Elbtunnelr{\"o}hre},
  series = {tunnel - Internationale Fachzeitschrift f{\"u}r unterirdisches Bauen (2003)},
  journal   = {tunnel - Internationale Fachzeitschrift f{\"u}r unterirdisches Bauen (2003)},
  isbn      = {0722-6241},
  pages     = {19 -- 28},
  year      = {2003},
  language  = {de}
}
@article{Gerhardt1999,
  author    = {Gerhardt, Hans Joachim},
  title     = {RWA-Einbau in Geb{\"a}udew{\"a}nden},
  series = {Brandschutz in {\"o}ffentlichen und privaten Geb{\"a}uden (1999)},
  journal   = {Brandschutz in {\"o}ffentlichen und privaten Geb{\"a}uden (1999)},
  pages     = {46 -- 48},
  year      = {1999},
  language  = {de}
}
@article{Gerhardt1998,
  author    = {Gerhardt, Hans Joachim},
  title     = {Die Bestimmung der Windbelastung von Bauwerken im Windkanal},
  series = {Der Pr{\"u}fingenieur (1998)},
  journal   = {Der Pr{\"u}fingenieur (1998)},
  pages     = {31 -- 45},
  year      = {1998},
  language  = {de}
}
@article{Gerhardt1992,
  author    = {Gerhardt, Hans Joachim},
  title     = {Physikalische und brandschutztechnische Grundlagen des Rauch- und W{\"a}rmeabzugs},
  series = {VDI-Berichte. 983 (1992)},
  journal   = {VDI-Berichte. 983 (1992)},
  isbn      = {0083-5560},
  pages     = {51 -- 69},
  year      = {1992},
  language  = {de}
}
@article{Gerhardt1994,
  author    = {Gerhardt, Hans Joachim},
  title     = {Lufttechnische Pr{\"u}fungen von Abz{\"u}gen - Kritische Anmerkungen zur Pr{\"u}fvorschrift DIN 12 924 Teil 1},
  series = {GIT Spezial: Arbeitschutz (1994)},
  journal   = {GIT Spezial: Arbeitschutz (1994)},
  isbn      = {0940-032X},
  pages     = {90 -- 95},
  year      = {1994},
  language  = {de}
}
@article{Gerhardt1994,
  author    = {Gerhardt, Hans Joachim},
  title     = {L{\"o}sungskonzept zur Bel{\"u}ftung von Rottehallen},
  series = {Abfallwirtschaftsjournal. 6 (1994), H. 10},
  journal   = {Abfallwirtschaftsjournal. 6 (1994), H. 10},
  isbn      = {0934-6422},
  pages     = {689 -- 692},
  year      = {1994},
  language  = {de}
}
@article{Gerhardt1995,
  author    = {Gerhardt, Hans Joachim},
  title     = {Arbeitsschutz in Altstoffsortieranlagen - Raumlufttechnische Maßnahmen},
  series = {Abfallwirtschaftsjournal. 7 (1995), H. 7/8},
  journal   = {Abfallwirtschaftsjournal. 7 (1995), H. 7/8},
  isbn      = {0934-6422},
  pages     = {471 -- 473},
  year      = {1995},
  language  = {de}
}
@article{Gerhardt2002,
  author    = {Gerhardt, Hans Joachim},
  title     = {Anmerkungen zur {\"A}hnlichkeit von Modellversuchen bei der Rauchableitung},
  series = {vfdb-Zeitschrift. 51 (2002), H. 2},
  journal   = {vfdb-Zeitschrift. 51 (2002), H. 2},
  isbn      = {0042-1804},
  pages     = {47 -- 49},
  year      = {2002},
  language  = {de}
}
@article{Gerhardt2001,
  author    = {Gerhardt, Hans Joachim},
  title     = {Entrauchungsnachweise. Kritische Diskussion von Methoden des Brandschutzingenieurwesens},
  series = {vfdb-Zeitschrift. 50 (2001), H. 3},
  journal   = {vfdb-Zeitschrift. 50 (2001), H. 3},
  isbn      = {0042-1804},
  pages     = {99 -- 104},
  year      = {2001},
  language  = {de}
}
@article{Gerhardt2005,
  author    = {Gerhardt, Hans Joachim},
  title     = {Design methods of smoke and heat exhaust systems in construction works},
  series = {V Mie\&\#796;dzynarodowa Konferencja Bezpiecze\&\#324;stwo Po\&\#380;arowe Budowli, Warszawa-Miedzeszyn, 14 - 16 listopada 2005 r. = : Vth International Conference Fire Safety of Buildings / ITB ... [Ed. Miros\&\#322;aw Kosiorek]},
  journal   = {V Mie\&\#796;dzynarodowa Konferencja Bezpiecze\&\#324;stwo Po\&\#380;arowe Budowli, Warszawa-Miedzeszyn, 14 - 16 listopada 2005 r. = : Vth International Conference Fire Safety of Buildings / ITB ... [Ed. Miros\&\#322;aw Kosiorek]},
  publisher = {ITB},
  address   = {Warszawa},
  isbn      = {83-7413-810-6},
  pages     = {127 -- 140},
  year      = {2005},
  language  = {en}
}
@article{Gerhardt2006,
  author    = {Gerhardt, Hans Joachim},
  title     = {Wind- und Temperatureinfl{\"u}sse bei der Planung von Entrauchungseinrichtungen},
  series = {VFDB-Zeitschrift : Forschung, Technik und Management im Brandschutz. 55 (2006), H. 3},
  journal   = {VFDB-Zeitschrift : Forschung, Technik und Management im Brandschutz. 55 (2006), H. 3},
  isbn      = {0042-1804},
  pages     = {115 -- 121},
  year      = {2006},
  language  = {de}
}
@article{Gerhardt2005,
  author    = {Gerhardt, Hans Joachim},
  title     = {Teures Bauen durch starre Genehmigungspraxis},
  series = {Der Bausachverst{\"a}ndige : Zeitschrift f{\"u}r Bausch{\"a}den, Grundst{\"u}ckswert und gutachterliche T{\"a}tigkeit. 1 (2005), H. 5},
  journal   = {Der Bausachverst{\"a}ndige : Zeitschrift f{\"u}r Bausch{\"a}den, Grundst{\"u}ckswert und gutachterliche T{\"a}tigkeit. 1 (2005), H. 5},
  isbn      = {1614-6123},
  pages     = {44 -- 45},
  year      = {2005},
  language  = {de}
}
@article{Gerhardt2005,
  author    = {Gerhardt, Hans Joachim},
  title     = {Physikalische Modelle f{\"u}r Brandsicherheitsnachweise = physical models for fire safety design},
  series = {Kurzreferate : Hannover, 6. und 7. Juni 2005 = Proceedings / [Veranst.: VFDB, Vereinigung zur F{\"o}rderung des Deutschen Brandschutzes e.V.; iBMB, Institut f{\"u}r Baustoffe, Massivbau und Brandschutz der Technischen Universit{\"a}t Braunschweig]. Hrsg.: Dietmar Hosser},
  journal   = {Kurzreferate : Hannover, 6. und 7. Juni 2005 = Proceedings / [Veranst.: VFDB, Vereinigung zur F{\"o}rderung des Deutschen Brandschutzes e.V.; iBMB, Institut f{\"u}r Baustoffe, Massivbau und Brandschutz der Technischen Universit{\"a}t Braunschweig]. Hrsg.: Dietmar Hosser},
  publisher = {iBMB},
  address   = {Braunschweig},
  isbn      = {3-89288-165-0},
  pages     = {135 -- 154},
  year      = {2005},
  language  = {de}
}
@article{GerhardtBofahKramer1990,
  author    = {Gerhardt, Hans Joachim and Bofah, K.-K. and Kramer, C.},
  title     = {Lagesicherheit lose verlegter W{\"a}rmed{\"a}mmplatten auf Flachd{\"a}chern},
  series = {Die Bautechnik. 67 (1990), H. 2},
  journal   = {Die Bautechnik. 67 (1990), H. 2},
  isbn      = {0005-6820},
  pages     = {55 -- 60},
  year      = {1990},
  language  = {de}
}
@article{GerhardtCooperWhitbreadetal.1985,
  author    = {Gerhardt, Hans Joachim and Cooper, K.-R. and Whitbread, R. and Gary, K.-P. (u.a.)},
  title     = {A comparison of aerodynamic drag measurements on model trucks in closed-jet and open-jet wind tunnels},
  pages     = {261 -- 274},
  year      = {1985},
  language  = {en}
}
@article{GerhardtEbert1991,
  author    = {Gerhardt, Hans Joachim and Ebert, U.},
  title     = {Windklima und Immission. Vergleich von Messungen vor Ort und Modellmessungen im Windkanal},
  series = {Staub, Reinhaltung der Luft. 51 (1991), H. 2},
  journal   = {Staub, Reinhaltung der Luft. 51 (1991), H. 2},
  isbn      = {0039-0771},
  pages     = {57 -- 62},
  year      = {1991},
  language  = {de}
}
@article{GerhardtJanser1995,
  author    = {Gerhardt, Hans Joachim and Janser, F.},
  title     = {Windbelastung bel{\"u}fteter Fassadensysteme},
  series = {Der Bauingenieur. 70 (1995), H. 5},
  journal   = {Der Bauingenieur. 70 (1995), H. 5},
  isbn      = {0005-6650},
  pages     = {193 -- 201},
  year      = {1995},
  language  = {de}
}
@article{GerhardtJungSchmidt2002,
  author    = {Gerhardt, Hans Joachim and Jung, G. and Schmidt, G.},
  title     = {Rauchversuch in einem Hochregallager. Die aerodynamisch wirksame {\"O}ffnungsfl{\"a}che f{\"u}r den Rauchabzug in Hochregallagern und ihr Einfluss auf die L{\"o}scharbeiten der Feuerwehr},
  series = {vfdb-Zeitschrift. 51 (2002), H. 1},
  journal   = {vfdb-Zeitschrift. 51 (2002), H. 1},
  isbn      = {0042-1804},
  pages     = {21 -- 25},
  year      = {2002},
  language  = {de}
}
@article{GerhardtJung1991,
  author    = {Gerhardt, Hans Joachim and Jung, O.},
  title     = {Lagesicherheit mechanisch befestigter Dachabdichtungen bei Windbelastung},
  series = {Die Bautechnik. 68 (1991), H. 11},
  journal   = {Die Bautechnik. 68 (1991), H. 11},
  isbn      = {0005-6820},
  pages     = {372 -- 377},
  year      = {1991},
  language  = {de}
}
@article{GerhardtKonrathKrameretal.1992,
  author    = {Gerhardt, Hans Joachim and Konrath, B. and Kramer, C. and Oliveira, L.-A.},
  title     = {Aerodynamische Abdichtung von Anlagen f{\"u}r die Bandbearbeitung},
  series = {Blech, Rohre, Profile. 39 (1992), H. 1},
  journal   = {Blech, Rohre, Profile. 39 (1992), H. 1},
  isbn      = {0006-4688},
  pages     = {39 -- 1},
  year      = {1992},
  language  = {de}
}
@article{GerhardtKonrathLieb2005,
  author    = {Gerhardt, Hans Joachim and Konrath, B. and Lieb, R.-D.},
  title     = {Das Drallrohr},
  series = {HLH : L{\"u}ftung, Klima, Heizung, Sanit{\"a}r, Geb{\"a}udetechnik. 56 (2005), H. 11},
  journal   = {HLH : L{\"u}ftung, Klima, Heizung, Sanit{\"a}r, Geb{\"a}udetechnik. 56 (2005), H. 11},
  isbn      = {1436-5103},
  pages     = {91 -- 95},
  year      = {2005},
  language  = {en}
}
@article{GerhardtKonrathSchoenwald2005,
  author    = {Gerhardt, Hans Joachim and Konrath, B. and Sch{\"o}nwald, J.},
  title     = {Brandsimulation f{\"u}r Abnahmeversuche},
  series = {HLH : L{\"u}ftung, Klima, Heizung, Sanit{\"a}r, Geb{\"a}udetechnik. 56 (2005), H. 8},
  journal   = {HLH : L{\"u}ftung, Klima, Heizung, Sanit{\"a}r, Geb{\"a}udetechnik. 56 (2005), H. 8},
  isbn      = {1436-5103},
  pages     = {46 -- 51},
  year      = {2005},
  language  = {de}
}
@article{GerhardtKonrathStiel2006,
  author    = {Gerhardt, Hans Joachim and Konrath, B. and Stiel, M.},
  title     = {Anmerkungen zur DIN EN 12101-2 {\"u}ber die Pr{\"u}fung von nat{\"u}rlichen Rauch- und W{\"a}rmeabzugsanlagen (NRGW)},
  series = {VFDB-Zeitschrift : Forschung, Technik und Management im Brandschutz. 55 (2006), H. 3},
  journal   = {VFDB-Zeitschrift : Forschung, Technik und Management im Brandschutz. 55 (2006), H. 3},
  isbn      = {0042-1804},
  pages     = {157 -- 158},
  year      = {2006},
  language  = {de}
}
@article{GerhardtKonrath2003,
  author    = {Gerhardt, Hans Joachim and Konrath, Bernd},
  title     = {Rauchableitung in unterirdischen Verkehrsanlagen. M{\"o}glichkeiten und Hinweise zur Ausf{\"u}hrung.},
  series = {vfdb-Zeitschrift. 52 (2003), H. 2},
  journal   = {vfdb-Zeitschrift. 52 (2003), H. 2},
  isbn      = {0042-1804},
  pages     = {59 -- 65},
  year      = {2003},
  language  = {de}
}
@article{GerhardtKonrath2002,
  author    = {Gerhardt, Hans Joachim and Konrath, Bernd},
  title     = {Linienhafte Absaugung von Rauchgasen},
  series = {vfdb-Zeitschrift. 51 (2002), H. 1},
  journal   = {vfdb-Zeitschrift. 51 (2002), H. 1},
  isbn      = {0042-1804},
  pages     = {33 -- 36},
  year      = {2002},
  language  = {de}
}
@article{GerhardtKonrathLieb2002,
  author    = {Gerhardt, Hans Joachim and Konrath, Bernd and Lieb, Rolf-Dieter},
  title     = {Zur Druckbel{\"u}ftung von Sicherheitstreppenr{\"a}umen},
  series = {vfdb-Zeitschrift. 51 (2002), H. 3},
  journal   = {vfdb-Zeitschrift. 51 (2002), H. 3},
  isbn      = {0042-1804},
  pages     = {122 -- 128},
  year      = {2002},
  language  = {de}
}
@article{GerhardtKorath2004,
  author    = {Gerhardt, Hans Joachim and Korath, Bernd},
  title     = {Maschinelle Rauchableitung in besonderen Bauarten},
  series = {vfdb-Zeitschrift. 53 (2004), H. 4},
  journal   = {vfdb-Zeitschrift. 53 (2004), H. 4},
  isbn      = {0042-1804},
  pages     = {198 -- 204},
  year      = {2004},
  language  = {de}
}
@article{GerhardtKramer1984,
  author    = {Gerhardt, Hans Joachim and Kramer, C.},
  title     = {Belastung von RA bei Windangriff},
  series = {Zentralblatt fuer Industriebau. 30 (1984), H. 3},
  journal   = {Zentralblatt fuer Industriebau. 30 (1984), H. 3},
  isbn      = {0044-4227},
  pages     = {214 -- 217},
  year      = {1984},
  language  = {de}
}
@article{GerhardtKramer1985,
  author    = {Gerhardt, Hans Joachim and Kramer, C.},
  title     = {Aerodynamsiche RA-Optimierung},
  series = {Zentralblatt fuer Industriebau. 31 (1985), H. 5},
  journal   = {Zentralblatt fuer Industriebau. 31 (1985), H. 5},
  isbn      = {0044-4227},
  pages     = {358 -- 362},
  year      = {1985},
  language  = {en}
}
@article{GerhardtKramer1992,
  author    = {Gerhardt, Hans Joachim and Kramer, C.},
  title     = {Rauch- und W{\"a}rmeabzug - physikalische Grundlagen und Anwendungen},
  series = {vfdb-Zeitschrift. 41 (1992), H. 2},
  journal   = {vfdb-Zeitschrift. 41 (1992), H. 2},
  isbn      = {0042-1804},
  pages     = {49 -- 54},
  year      = {1992},
  language  = {de}
}
@article{GerhardtKramerJanssen1985,
  author    = {Gerhardt, Hans Joachim and Kramer, C. and Janssen, L.-J.},
  title     = {Flow studies of an open jet wind tunnel and comparison with closed and slotted walls},
  pages     = {7 -- 28},
  year      = {1985},
  language  = {en}
}
@article{GerhardtKrueger2000,
  author    = {Gerhardt, Hans Joachim and Kr{\"u}ger, O.},
  title     = {Experimentelle Untersuchungen zur Entrauchung großer R{\"a}ume unter besonderer Beachtung des Windeinflusses},
  series = {vfdb-Zeitschrift. 49 (2000), H. 2},
  journal   = {vfdb-Zeitschrift. 49 (2000), H. 2},
  isbn      = {0042-1804},
  pages     = {47 -- 54},
  year      = {2000},
  language  = {de}
}
@article{GerhardtKrueger1997,
  author    = {Gerhardt, Hans Joachim and Kr{\"u}ger, O.},
  title     = {Building shape influence on local wind loads},
  series = {Proceedings of the 2nd European \& African Conference on Wind Engineering : 2 EACWE, Palazzo Ducale, Genova, Italy, June 22-26, 1997 / ed. by Giovanni Solari. - Vol. 2},
  journal   = {Proceedings of the 2nd European \& African Conference on Wind Engineering : 2 EACWE, Palazzo Ducale, Genova, Italy, June 22-26, 1997 / ed. by Giovanni Solari. - Vol. 2},
  publisher = {Servizi Grafici Editoriali},
  address   = {Padova},
  isbn      = {88-86281-19-6},
  pages     = {XIX, S. 1017 - 1998 : Ill., graph. Darst.},
  year      = {1997},
  language  = {en}
}
@article{GerhardtLieb2005,
  author    = {Gerhardt, Hans Joachim and Lieb, R.-D.},
  title     = {Entrauchung komplexer R{\"a}umlichkeiten : Strategien und Steuerungen},
  series = {T{\"u}r-Tor-Fenster-Report : Fachzeitschrift f{\"u}r die Technologien von T{\"u}ren, Toren und Fenstern. 25 (2005), H. 3},
  journal   = {T{\"u}r-Tor-Fenster-Report : Fachzeitschrift f{\"u}r die Technologien von T{\"u}ren, Toren und Fenstern. 25 (2005), H. 3},
  isbn      = {0724-7702},
  pages     = {27 -- 29},
  year      = {2005},
  language  = {de}
}
@article{GerhardtRudolph2000,
  author    = {Gerhardt, Hans Joachim and Rudolph, M.},
  title     = {Steuerungsstrategien f{\"u}r Fensterbet{\"a}tigungen von Hochh{\"a}usern. Nat{\"u}rliche L{\"u}ftung},
  series = {HLH - Heizung, L{\"u}ftung, Klima, Haustechnik. 51 (2000), H. 9},
  journal   = {HLH - Heizung, L{\"u}ftung, Klima, Haustechnik. 51 (2000), H. 9},
  isbn      = {1436-5103},
  pages     = {48 -- 52},
  year      = {2000},
  language  = {de}
}
@article{GerhardtSchmidtJung2002,
  author    = {Gerhardt, Hans Joachim and Schmidt, G. and Jung, G.},
  title     = {Rauchversuch in einem Hochregallager},
  series = {Bautechnik. 79 (2002), H. 6},
  journal   = {Bautechnik. 79 (2002), H. 6},
  isbn      = {0932-8351},
  pages     = {414 -- 417},
  year      = {2002},
  language  = {de}
}
@article{GerhardtSchwarz2003,
  author    = {Gerhardt, Hans Joachim and Schwarz, N.},
  title     = {Entrauchung {\"u}ber Seitenw{\"a}nde},
  series = {vfdb-Zeitschrift. 52 (2003), H. 1},
  journal   = {vfdb-Zeitschrift. 52 (2003), H. 1},
  isbn      = {0042-1804},
  pages     = {25 -- 35},
  year      = {2003},
  language  = {de}
}
@article{GerhardtSchoenwald2002,
  author    = {Gerhardt, Hans Joachim and Sch{\"o}nwald, J.},
  title     = {Eine neue Brandsimulationsvorrichtung},
  series = {vfdb-Zeitschrift. 51 (2002), H. 3},
  journal   = {vfdb-Zeitschrift. 51 (2002), H. 3},
  isbn      = {0042-1804},
  pages     = {91 -- 93},
  year      = {2002},
  language  = {de}
}
@article{GerhardtSchoenwaldForssmannetal.2005,
  author    = {Gerhardt, Hans Joachim and Sch{\"o}nwald, J. and Forßmann, R. and Große, Wolfgang},
  title     = {Modulation der Windenergie durch optimierte Uferbepflanzung zur Steuerung der Oberfl{\"a}chenstr{\"o}mung f{\"u}r das Entfernung von Treibgut},
  series = {Der F{\"u}hlinger See : Beitr{\"a}ge zur Erhaltung der {\"o}kologischen Qualit{\"a}t / hrsg. von Wolfgang Große ... - ({\"O}kologie und nachhaltige Entwicklung von Sport- und Freizeitseen ; 1)},
  journal   = {Der F{\"u}hlinger See : Beitr{\"a}ge zur Erhaltung der {\"o}kologischen Qualit{\"a}t / hrsg. von Wolfgang Große ... - ({\"O}kologie und nachhaltige Entwicklung von Sport- und Freizeitseen ; 1)},
  publisher = {Monsenstein und Vannerdat},
  address   = {M{\"u}nster},
  isbn      = {3-86582-212-6},
  pages     = {95 -- 108},
  year      = {2005},
  language  = {de}
}
@article{GerhardtSchoenwaldKonrath2007,
  author    = {Gerhardt, Hans Joachim and Sch{\"o}nwald, J. and Konrath, B.},
  title     = {Verwendung von Leichtgas bei Brandsimulationen - unzul{\"a}ssig oder sinnvoll?},
  series = {VFDB-Zeitschrift : Forschung, Technik und Management im Brandschutz. 56 (2007), H. 1},
  journal   = {VFDB-Zeitschrift : Forschung, Technik und Management im Brandschutz. 56 (2007), H. 1},
  isbn      = {0042-1804},
  pages     = {29 -- 31},
  year      = {2007},
  language  = {de}
}
@article{GerhardtWacker1999,
  author    = {Gerhardt, Hans Joachim and Wacker, J.},
  title     = {Immissionsprognosen auf der Basis von Windkanaluntersuchungen},
  series = {Immissionsschutz. 4 (1999), H. 3},
  journal   = {Immissionsschutz. 4 (1999), H. 3},
  isbn      = {1430-9262},
  pages     = {84 -- 89},
  year      = {1999},
  language  = {de}
}
@article{GermanMikuckiWelchetal.2021,
  author    = {German, Laura and Mikucki, Jill A. and Welch, Susan A. and Welch, Kathleen A. and Lutton, Anthony and Dachwald, Bernd and Kowalski, Julia and Heinen, Dirk and Feldmann, Marco and Francke, Gero and Espe, Clemens and Lyons, W. Berry},
  title     = {Validation of sampling antarctic subglacial hypersaline waters with an electrothermal ice melting probe (IceMole) for environmental analytical geochemistry},
  series = {International Journal of Environmental Analytical Chemistry},
  volume    = {101},
  journal   = {International Journal of Environmental Analytical Chemistry},
  number    = {15},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {0306-7319},
  doi       = {10.1080/03067319.2019.1704750},
  pages     = {2654 -- 2667},
  year      = {2021},
  abstract  = {Geochemical characterisation of hypersaline waters is difficult as high concentrations of salts hinder the analysis of constituents at low concentrations, such as trace metals, and the collection of samples for trace metal analysis in natural waters can be easily contaminated. This is particularly the case if samples are collected by non-conventional techniques such as those required for aquatic subglacial environments. In this paper we present the first analysis of a subglacial brine from Taylor Valley, (~ 78°S), Antarctica for the trace metals: Ba, Co, Mo, Rb, Sr, V, and U. Samples were collected englacially using an electrothermal melting probe called the IceMole. This probe uses differential heating of a copper head as well as the probe's sidewalls and an ice screw at the melting head to move through glacier ice. Detailed blanks, meltwater, and subglacial brine samples were collected to evaluate the impact of the IceMole and the borehole pump, the melting and collection process, filtration, and storage on the geochemistry of the samples collected by this device. Comparisons between melt water profiles through the glacier ice and blank analysis, with published studies on ice geochemistry, suggest the potential for minor contributions of some species Rb, As, Co, Mn, Ni, NH4+, and NO2-+NO3- from the IceMole. The ability to conduct detailed chemical analyses of subglacial fluids collected with melting probes is critical for the future exploration of the hundreds of deep subglacial lakes in Antarctica.},
  language  = {en}
}
@article{GrundmannDachwaldGrimmetal.2015,
  author    = {Grundmann, Jan Thimo and Dachwald, Bernd and Grimm, Christian D. and Kahle, Ralph and Koch, Aaron Dexter and Krause, Christian and Lange, Caroline and Quantius, Dominik and Ulamec, Stephan},
  title     = {Spacecraft for Hypervelocity Impact Research - An Overview of Capabilities, Constraints and the Challenges of Getting There},
  series = {Procedia Engineering},
  volume    = {Vol. 103},
  journal   = {Procedia Engineering},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1877-7058},
  doi       = {10.1016/j.proeng.2015.04.021},
  pages     = {151 -- 158},
  year      = {2015},
  language  = {en}
}
@article{GoettenFinger2020,
  author    = {G{\"o}tten, Falk and Finger, Felix},
  title     = {PhoenAIX - Die modulare Transportdrohne},
  series = {Ingenieurspiegel},
  volume    = {2020},
  journal   = {Ingenieurspiegel},
  number    = {1},
  publisher = {Public Verlag},
  address   = {Bingen},
  isbn      = {1868-5919},
  pages     = {38 -- 40},
  year      = {2020},
  abstract  = {Die autonome, unbemannte Luftfahrt ist einer der Schl{\"u}sselsektoren f{\"u}r die Zukunft der Luftfahrt. In diesem rasant wachsenden Bereich nehmen senkrecht startende und senkrecht landende Flugzeuge (Vertical Take-Off and Landing - VTOL) einen besonderen Platz ein. Ein VTOL-Flugzeug (manchmal auch „Transitionsflugger{\"a}t" genannt) verbindet die Eigenschaft des Helikopters, {\"u}berall starten und landen zu k{\"o}nnen, mit den Geschwindigkeits-, Reichweiten und Flugdauervorteilen des Starrfl{\"u}glers. Grunds{\"a}tzlich wird die Senkrechtstart- und -landef{\"a}higkeit sowohl von zivilen als auch von milit{\"a}rischen Betreibern unbemannter Flugger{\"a}te (UAVs) gew{\"u}nscht. Trotzdem bietet der Markt nur eine geringe Anzahl von VTOL-UAVs, da qualitativ hochwertige Entw{\"u}rfe eine ausgesprochene Herausforderung in der Entwicklung darstellen. An der FH Aachen wird deshalb seit {\"u}ber 5 Jahren an der Auslegung und Analyse von solchen unbemannten VTOL Flugzeugen geforscht. Das neuste Projekt ist der Eigenentwurf einer großen, senkrechtstartenden Transportdrohne. Das „PhoenAIX" getaufte Flugger{\"a}t wird von Falk G{\"o}tten und Felix Finger im Rahmen einer EFRE-F{\"o}rderung entwickelt.},
  language  = {de}
}
@article{GoettenFingerHavermannetal.2018,
  author    = {G{\"o}tten, Falk and Finger, Felix and Havermann, Marc and Braun, Carsten and Gomez, Francisco and Bill, C.},
  title     = {On the flight performance impact of landing gear drag reduction methods for unmanned air vehicles},
  series = {Deutscher Luft- und Raumfahrtkongress 2018},
  journal   = {Deutscher Luft- und Raumfahrtkongress 2018},
  publisher = {DGLR},
  address   = {Bonn},
  doi       = {10.25967/480058},
  pages     = {11 S.},
  year      = {2018},
  abstract  = {The flight performance impact of three different landing gear configurations on a small, fixed-wing UAV is analyzed with a combination of RANS CFD calculations and an incremental flight performance algorithm. A standard fixed landing gear configuration is taken as a baseline, while the influence of retracting the landing gear or applying streamlined fairings is investigated. A retraction leads to a significant parasite drag reduction, while also fairings promise large savings. The increase in lift-to-drag ratio is reduced at high lift coefficients due to the influence of induced drag. All configurations are tested on three different design missions with an incremental flight performance algorithm. A trade-off study is performed using the retracted or faired landing gear's weight increase as a variable. The analysis reveals only small mission performance gains as the aerodynamic improvements are negated by weight penalties. A new workflow for decision-making is presented that allows to estimate if a change in landing gear configuration is beneficial for a small UAV.},
  language  = {en}
}
@article{GoettenFingerHavermannetal.2021,
  author    = {G{\"o}tten, Falk and Finger, Felix and Havermann, Marc and Braun, Carsten and Marino, M. and Bil, C.},
  title     = {Full configuration drag estimation of short-to-medium range fixed-wing UAVs and its impact on initial sizing optimization},
  series = {CEAS Aeronautical Journal},
  volume    = {12},
  journal   = {CEAS Aeronautical Journal},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1869-5590 (Online)},
  doi       = {10.1007/s13272-021-00522-w},
  pages     = {589 -- 603},
  year      = {2021},
  abstract  = {The paper presents the derivation of a new equivalent skin friction coefficient for estimating the parasitic drag of short-to-medium range fixed-wing unmanned aircraft. The new coefficient is derived from an aerodynamic analysis of ten different unmanned aircraft used for surveillance, reconnaissance, and search and rescue missions. The aircraft is simulated using a validated unsteady Reynolds-averaged Navier Stokes approach. The UAV's parasitic drag is significantly influenced by the presence of miscellaneous components like fixed landing gears or electro-optical sensor turrets. These components are responsible for almost half of an unmanned aircraft's total parasitic drag. The new equivalent skin friction coefficient accounts for these effects and is significantly higher compared to other aircraft categories. It is used to initially size an unmanned aircraft for a typical reconnaissance mission. The improved parasitic drag estimation yields a much heavier unmanned aircraft when compared to the sizing results using available drag data of manned aircraft.},
  language  = {en}
}
@article{GoettenHavermannBraunetal.2019,
  author    = {G{\"o}tten, Falk and Havermann, Marc and Braun, Carsten and Gomez, Francisco and Bil, Cees},
  title     = {RANS Simulation Validation of a Small Sensor Turret for UAVs},
  series = {Journal of Aerospace Engineering},
  volume    = {32},
  journal   = {Journal of Aerospace Engineering},
  number    = {5},
  publisher = {ASCE},
  address   = {New York},
  issn      = {1943-5525},
  doi       = {10.1061/(ASCE)AS.1943-5525.0001055},
  pages     = {Article number 04019060},
  year      = {2019},
  abstract  = {Recent Unmanned Aerial Vehicle (UAV) design procedures rely on full aircraft steady-state Reynolds-Averaged-Navier-Stokes (RANS) analyses in early design stages. Small sensor turrets are included in such simulations, even though their aerodynamic properties show highly unsteady behavior. Very little is known about the effects of this approach on the simulation outcomes of small turrets. Therefore, the flow around a model turret at a Reynolds number of 47,400 is simulated with a steady-state RANS approach and compared to experimental data. Lift, drag, and surface pressure show good agreement with the experiment. The RANS model predicts the separation location too far downstream and shows a larger recirculation region aft of the body. Both characteristic arch and horseshoe vortex structures are visualized and qualitatively match the ones found by the experiment. The Reynolds number dependence of the drag coefficient follows the trend of a sphere within a distinct range. The outcomes indicate that a steady-state RANS model of a small sensor turret is able to give results that are useful for UAV engineering purposes but might not be suited for detailed insight into flow properties.},
  language  = {en}
}
@article{GoettenHavermannBraunetal.2020,
  author    = {G{\"o}tten, Falk and Havermann, Marc and Braun, Carsten and Marino, Matthew and Bil, Cees},
  title     = {Airfoil drag at low-to-medium reynolds numbers: A novel estimation method},
  series = {AIAA Journal},
  volume    = {58},
  journal   = {AIAA Journal},
  number    = {7},
  publisher = {AIAA},
  address   = {Reston, Va.},
  issn      = {1533-385X},
  doi       = {10.2514/1.J058983},
  pages     = {2791 -- 2805},
  year      = {2020},
  abstract  = {This paper presents a novel method for airfoil drag estimation at Reynolds numbers between 4×10⁵ and 4×10⁶. The novel method is based on a systematic study of 40 airfoils applying over 600 numerical simulations and considering natural transition. The influence of the airfoil thickness-to-chord ratio, camber, and freestream Reynolds number on both friction and pressure drag is analyzed in detail. Natural transition significantly affects drag characteristics and leads to distinct drag minima for different Reynolds numbers and thickness-to-chord ratios. The results of the systematic study are used to develop empirical correlations that can accurately predict an airfoil drag at low-lift conditions. The new approach estimates a transition location based on airfoil thickness-to-chord ratio, camber, and Reynolds number. It uses the transition location in a mixed laminar-turbulent skin-friction calculation, and corrects the skin-friction coefficient for separation effects. Pressure drag is estimated separately based on correlations of thickness-to-chord ratio, camber, and Reynolds number. The novel method shows excellent accuracy when compared with wind-tunnel measurements of multiple airfoils. It is easily integrable into existing aircraft design environments and is highly beneficial in the conceptual design stage.},
  language  = {en}
}
@article{GoettenHavermannBraunetal.2021,
  author    = {G{\"o}tten, Falk and Havermann, Marc and Braun, Carsten and Marino, Matthew and Bil, Cees},
  title     = {Aerodynamic Investigations of UAV Sensor Turrets - A Combined Wind-tunnel and CFD Approach},
  series = {SciTech 2021, AIAA SciTech Forum, online, WW, Jan 11-15, 2021},
  journal   = {SciTech 2021, AIAA SciTech Forum, online, WW, Jan 11-15, 2021},
  publisher = {AIAA},
  address   = {Reston, Va.},
  doi       = {10.2514/6.2021-1535},
  pages     = {1 -- 12},
  year      = {2021},
  language  = {en}
}
@article{GoettenHavermannBraunetal.2020,
  author    = {G{\"o}tten, Falk and Havermann, Marc and Braun, Carsten and Marino, Matthew and Bil, Cees},
  title     = {Improved Form Factor for Drag Estimation of Fuselages with Various Cross Sections},
  series = {Journal of Aircraft},
  journal   = {Journal of Aircraft},
  publisher = {AIAA},
  address   = {Reston, Va.},
  issn      = {1533-3868},
  doi       = {10.2514/1.C036032},
  pages     = {1 -- 13},
  year      = {2020},
  abstract  = {The paper presents an aerodynamic investigation of 70 different streamlined bodies with fineness ratios ranging from 2 to 10. The bodies are chosen to idealize both unmanned and small manned aircraft fuselages and feature cross-sectional shapes that vary from circular to quadratic. The study focuses on friction and pressure drag in dependency of the individual body's fineness ratio and cross section. The drag forces are normalized with the respective body's wetted area to comply with an empirical drag estimation procedure. Although the friction drag coefficient then stays rather constant for all bodies, their pressure drag coefficients decrease with an increase in fineness ratio. Referring the pressure drag coefficient to the bodies' cross-sectional areas shows a distinct pressure drag minimum at a fineness ratio of about three. The pressure drag of bodies with a quadratic cross section is generally higher than for bodies of revolution. The results are used to derive an improved form factor that can be employed in a classic empirical drag estimation method. The improved formulation takes both the fineness ratio and cross-sectional shape into account. It shows superior accuracy in estimating streamlined body drag when compared with experimental data and other form factor formulations of the literature.},
  language  = {en}
}