@article{WittmannGillessenOttoetal.1996, author = {Wittmann, Klaus and Gillessen, F. and Otto, G. and R{\"o}stel, R.}, title = {Undercooling and solidification of metallic melts suspended in a non-nucleating matrix: Experiment NUCAL of the German Spacelab Mission D-2}, series = {Acta Astronautica. 38 (1996), H. 1}, journal = {Acta Astronautica. 38 (1996), H. 1}, isbn = {0094-5765}, pages = {63 -- 68}, year = {1996}, language = {en} } @article{BlomeWilson1996, author = {Blome, Hans-Joachim and Wilson, Thomas L.}, title = {Nonlocal Cosmology}, series = {Bulletin of the American Physical Society. 40 (1996)}, journal = {Bulletin of the American Physical Society. 40 (1996)}, isbn = {0003-0503}, pages = {2121 -- 2121}, year = {1996}, language = {en} } @article{WittmannUlamecFeuerbacheretal.1997, author = {Wittmann, Klaus and Ulamec, S. and Feuerbacher, B. and Rosenbauer, H. (u.a.)}, title = {Rosetta Lander - In Situ Investigation of a Cometary Nucleus}, series = {Lunar and Planetary Science. 28 (1997)}, journal = {Lunar and Planetary Science. 28 (1997)}, isbn = {0270-9511}, pages = {1461 -- 1462}, year = {1997}, language = {en} } @incollection{Mertens1997, author = {Mertens, Josef}, title = {Aerodynamic multi point design challenge}, series = {New design concepts for high speed air transport.- (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, booktitle = {New design concepts for high speed air transport.- (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, editor = {Sobieczky, H.}, publisher = {Springer}, address = {Wien [u.a.]}, isbn = {3-2118-2815-X}, doi = {10.1007/978-3-7091-2658-5_4}, pages = {53 -- 67}, year = {1997}, abstract = {In the chapter "Son of Concorde, a Technology Challenge" one of the new challenges for a Supersonic Commercial Transport (SCT) is multi-point design for the four main design points: - supersonic cruise - transonic cruise - take-off and landing - transonic acceleration.}, language = {en} } @incollection{Mertens1997, author = {Mertens, Josef}, title = {Required aerodynamic technologies}, series = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, booktitle = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, editor = {Sobieczky, H.}, publisher = {Springer}, address = {Wien [u.a.]}, isbn = {3-2118-2815-X}, doi = {10.1007/978-3-7091-2658-5_5}, pages = {69 -- 96}, year = {1997}, abstract = {In the preceeding chapters on "Son of Concorde, a Technology Challenge" and "Aerodynamic Multipoint Design Challenge" it was explained, that a well balanced contribution of new technologies in all major disciplines is required for realisation of a new Supersonic Commercial Transport (SCT). One of these technologies - usually one of the most important for aircraft-is aerodynamics. Here, the required "pure" aerodynamic technologies are specified in more detail, according to our present knowledge. Increasing insight into the problems may change the balance of importance of the individual technologies and may require some more contributions. We must never confine our knowledge to the knowledge base of an expert at a given time, but must stay open for new insights.}, language = {en} } @incollection{Mertens1997, author = {Mertens, Josef}, title = {Certification of supersonic civil transports}, series = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, booktitle = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, editor = {Sobieczky, H.}, publisher = {Springer}, address = {Wien [u.a.]}, isbn = {3-2118-2815-X}, doi = {10.1007/978-3-7091-2658-5_6}, pages = {97 -- 103}, year = {1997}, abstract = {Since certification of Concorde new certification standards were introduced including many new regulations to improve flight safety. Most of these standards are to prevent severe accidents in the future which happened in the past (here: after Concorde's certification). A new SCT has to fulfill these standards, although Concorde had none of these accidents. But accidents - although they sometimes occurred only for a specific aircraft type - have to be avoided for any (new) aircraft. Because of existing aircraft without typical accident types having demonstrated their reliability, they are allowed to go on based on their old certification; although sometimes new rules prevent accident types which are not connected to specific aircraft types - like e.g. evacuation rules. Anyway, Concorde is allowed to fly based on its old certification, and hopefully in the future will fly as safely as in the past. But a new SCT has to fulfill updated rules like any other aircraft, and it has to be "just another aircraft" [75].}, language = {en} } @incollection{Mertens1997, author = {Mertens, Josef}, title = {Supersonic laminar flow}, series = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, booktitle = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, editor = {Sobieczky, H.}, publisher = {Springer}, address = {Wien [u.a.]}, isbn = {3-2118-2815-X}, doi = {10.1007/978-3-7091-2658-5_18}, pages = {275 -- 290}, year = {1997}, abstract = {Supersonic transports are very drag sensitive. Technology to reduce drag by application of laminar flow, therefore, will be important; it is a prerequisite to achieve very long range capability. In earlier studies it was assumed that SCTs would only become possible by application of laminar flow [376]. But today, we request an SCT to be viable without application of laminar flow in order to maintain its competitiveness when laminar flow becomes available for subsonic and supersonic transports. By reducing fuel burned, laminar flow drag reduction reduces size and weight of the aircraft, or increases range capability -whereas otherwise size and weight would grow towards infinity. Transition mechanisms from laminar to turbulent state of the boundary layer flow (ALT, CFI, TSI) function as for transonic transports, but at more severe conditions: higher sweep angles, cooled surfaces; higher mode instabilities (HMI) must at least be taken into account, although they may not become important below Mach 3. Hitherto there is a worldwide lack of ground test facilities to investigate TSI at the expected cruise Mach numbers between 1.6 and 2.4; in Stuttgart, Germany one such facility -a Ludwieg tube- is still in the validation phase. A quiet Ludwieg tunnel could be a favourable choice for Europe. But it will require a new approach in designing aircraft which includes improved theoretical predictions, usage of classical wind tunnels for turbulent flow and flight tests for validation.}, language = {en} } @incollection{Mertens1997, author = {Mertens, Josef}, title = {Son of Concorde, a technology challenge}, series = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, booktitle = {New design concepts for high speed air transport. - (Courses and lectures / International Centre for Mechanical Sciences ; 366)}, editor = {Sobieczky, H.}, publisher = {Springer}, address = {Wien [u.a.]}, isbn = {3-2118-2815-X}, doi = {10.1007/978-3-7091-2658-5_3}, pages = {31 -- 51}, year = {1997}, abstract = {Concorde (Figure 9) is the only supersonic airliner which has been introduced into regular passenger service. It is still in service at British Airways and Air France without any flight accidents, and probably will stay in service for at least for ten more years.}, language = {en} } @incollection{Mertens1997, author = {Mertens, Josef}, title = {Reduction of aerodynamic drag (RaWid)-Status after the first year of the program}, series = {New results in numerical and experimental fluid mechanics. - (Notes on numerical fluid mechanics ; 60)}, booktitle = {New results in numerical and experimental fluid mechanics. - (Notes on numerical fluid mechanics ; 60)}, publisher = {Vieweg}, address = {Braunschweig [u.a.]}, isbn = {3-528-06960-0}, doi = {10.1007/978-3-322-86573-1_2}, pages = {7 -- 14}, year = {1997}, abstract = {The technology programme "Reduction of aerodynamic drag (RaWid)" for high speed aerodynamics at Daimler-Benz Aerospace Airbus is sponsered by the German ministry for education, research and technology since July 1, 1995. Connected to this industrial programme are the cooperation programmes "MEGAFLOW" under leadership of the DLR and "Transition" by the DFG, and several contributions by DLR and universities. The programme is oriented towards technologies required for a MEGALINER which gains momentum by the ambitious plans for a new large Airbus A3XX. In the first year new technological steps were undertaken in theory, design and experiment. Some critical steps were verified by wing designs checked in wind tunnel tests.}, language = {en} } @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{HavermannBeylich1997, author = {Havermann, Marc and Beylich, A. E.}, title = {Performance and Limitations of the Laser-Induced Fluorescence Measurement Technique and the Established Experimental Methods for the Study of Supersonic Mixing / Havermann, M. ; Beylich, A. E.}, series = {International Journal of heat and technology. 15 (1997), H. 2}, journal = {International Journal of heat and technology. 15 (1997), H. 2}, publisher = {-}, pages = {3 -- 10}, year = {1997}, language = {en} } @article{DahlSuttrop1998, author = {Dahl, G{\"u}nter and Suttrop, F.}, title = {Engine control and low-NO(x) combustion for hydrogen fuelled aircraft gas turbines}, series = {International Journal of Hydrogen Energy. 23 (1998), H. 8}, journal = {International Journal of Hydrogen Energy. 23 (1998), H. 8}, isbn = {0360-3199}, pages = {695 -- 704}, year = {1998}, language = {en} } @article{WittmannKellWinkleretal.1998, author = {Wittmann, Klaus and Kell, G. and Winkler, F. and G{\"u}nther, M. (u.a.)}, title = {High resolution temperature measurement technique for materials sciences experiments in space}, series = {Acta Astronautica. 43 (1998), H. 7-8}, journal = {Acta Astronautica. 43 (1998), H. 7-8}, isbn = {0094-5765}, pages = {385 -- 395}, year = {1998}, language = {en} } @article{Mertens1998, author = {Mertens, Josef}, title = {Required technologies for supersonic aircraft}, series = {Fluid dynamics research on supersonic aircraft : this report is a compilation of the edited proceedings of the special course on "Fluid dynamic research on supersonic aircraft" held at the Karman Institute for Fluid Dynamics (VKI) in Rhode-Saint-Genese, Belgium, 25-29 May 1998}, journal = {Fluid dynamics research on supersonic aircraft : this report is a compilation of the edited proceedings of the special course on "Fluid dynamic research on supersonic aircraft" held at the Karman Institute for Fluid Dynamics (VKI) in Rhode-Saint-Genese, Belgium, 25-29 May 1998}, publisher = {Research and Technology Organization}, address = {Neuilly-sur-Seine}, isbn = {92-837-1007-X}, pages = {5.1 -- 5.16}, year = {1998}, language = {en} } @article{Mertens1998, author = {Mertens, Josef}, title = {Multi point design challenges for supersonic transports}, series = {Fluid dynamics research on supersonic aircraft : this report is a compilation of the edited proceedings of the special course on "Fluid dynamics research on supersonic aircraft" held at the Karman Institute for Fluid Dynamics (VKI) in Rhode-Saint-Genese, Belgium, 25-29 May 1998}, journal = {Fluid dynamics research on supersonic aircraft : this report is a compilation of the edited proceedings of the special course on "Fluid dynamics research on supersonic aircraft" held at the Karman Institute for Fluid Dynamics (VKI) in Rhode-Saint-Genese, Belgium, 25-29 May 1998}, publisher = {Research and Technology Organization}, address = {Neuilly-sur-Seine}, isbn = {92-837-1007-X}, pages = {8.1 -- 8.12}, year = {1998}, language = {en} } @article{HavermannBeylich1998, author = {Havermann, Marc and Beylich, A. E.}, title = {Combined Measurement of Velocity, Temperature and Pressure in Compressible Gas Flows Using Laser-Induced Iodine Fluorescence / Havermann, M. ; Beylich, A. E.}, publisher = {-}, year = {1998}, language = {en} } @article{Harder1999, author = {Harder, J{\"o}rn}, title = {A crystallographic model for the study of local deformation processes in polycrystals}, series = {International journal of plasticity. 15 (1999), H. 6}, journal = {International journal of plasticity. 15 (1999), H. 6}, isbn = {0749-6419}, pages = {605 -- 624}, year = {1999}, language = {en} } @article{WittmannUlamecRichter1999, author = {Wittmann, Klaus and Ulamec, S and Richter, L}, title = {Lander Systems for Planetary Missions}, series = {Laboratory astrophysics and space research / ed. by P. Ehrenfreund}, journal = {Laboratory astrophysics and space research / ed. by P. Ehrenfreund}, publisher = {Kluwer}, address = {Dordrecht [u.a.]}, isbn = {0-7923-5338-2}, pages = {597 -- 621}, year = {1999}, language = {en} } @article{WittmannFeuerbacherUlamecetal.1999, author = {Wittmann, Klaus and Feuerbacher, B. and Ulamec, S. and Rosenbauer, H. (u.a.)}, title = {Rosetta Lander - In Situ Characterisation of a Comet Nucleus}, series = {Acta Astronautica. 45 (1999), H. 4-9}, journal = {Acta Astronautica. 45 (1999), H. 4-9}, isbn = {0094-5765}, pages = {389 -- 395}, year = {1999}, language = {en} } @article{BohnFunkeGier1999, author = {Bohn, D. and Funke, Harald and Gier, J.}, title = {Temperature jet development in a cross-over channel}, series = {Third European Conference on Turbomachinery - fluid dynamics and thermodynamics : : 2 - 5 March 1999, Royal National Hotel, London, UK / organized by the Energy Transfer and Thermofluid Mechanics Group of the Institution of Mechanical Engineers (IMechE); with support and sponsorship from European Commission / Vol. B.}, journal = {Third European Conference on Turbomachinery - fluid dynamics and thermodynamics : : 2 - 5 March 1999, Royal National Hotel, London, UK / organized by the Energy Transfer and Thermofluid Mechanics Group of the Institution of Mechanical Engineers (IMechE); with support and sponsorship from European Commission / Vol. B.}, publisher = {Professional Engineering Publ.}, address = {Bury St. Edmunds}, pages = {671 -- 680}, year = {1999}, language = {en} }