TY  - JOUR
A1  - Mertens, Josef
T1  - Multi point design challenges for supersonic transports
JF  - 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
Y1  - 1998
SN  - 92-837-1007-X
SP  - 8.1
EP  - 8.12
PB  - Research and Technology Organization
CY  - Neuilly-sur-Seine
ER  - 
TY  - PAT
A1  - Mertens, Josef
A1  - Lajain, Henri
T1  - Method of fabricating leading edge nose structures of aerodynamic surfaces : patent no.: US 6,415,510 B2 ; date of patent: Jul. 9, 2002
Y1  - 2002
N1  - Volltext auch in der Datenbank http://publikationen.dpma.de/ zu finden unter der Nummer US000006415510B2
PB  - United States Patent and Trademark Office
CY  - [Washington, DC]
ER  - 
TY  - JOUR
A1  - Mertens, Josef
T1  - Luft hat keine Balken, aber enorme Kräfte : Aerodynamik - die unsichtbare Kraft
JF  - HEmagazin : das Hocheffizienz-Magazin von Wilo. 2006 (2006), H. 1
Y1  - 2006
SP  - 4
EP  - 9
PB  - -
ER  - 
TY  - CHAP
A1  - Mertens, Josef
T1  - Laminar leading edges: manufacturing, contamination, and operational aspects - results from the German RaWid programme
N2  - RaWid was the German national technology programme on transonic aerodynamics and supporting technologies, lasting from 1995 to 1998. One of the main topics was laminar wing development. Besides aerodynamic design work, many operational aspects were investigated. A manufacturing concept was developed to be applied to operational laminar wings and empennages. It was built in a large scale manufacturing demonstrator with the aerodynamic shape of a 1,5 m section of the A320 fin nose. Tolerances in shape and roughness fulfilled all requirements. The construction can easily be adapted to varying stiffness and strength requirements. Weight and manufacturing costs are comparable to common nose designs. The mock-up to be designed in ALTTA is based on this manufacturing principle. Another critical point is contamination of suction surfaces. Several tests were performed to investigate perforated titanium suction surfaces at realistic operational conditions: - a one year flight test with a suction plate in the stagnation area of the Airbus "Beluga" - a one year test of several suction plates in a ground test near the airport - a one year test of a working suction ground test installation at all weather conditions. No critical results were found. There is no long term suction degradation visible. Icing conditions and ground de-icing fluids used on airports did not pose severe problems. Some problems detected require only respection of weak design constraints.
KW  - Laminare Strömung
KW  - Ansaugsystem
KW  - Profilumströmung
KW  - Laminarprofil
KW  - RaWid
KW  - hybrid laminar flow
KW  - suction systems
KW  - suction structure
KW  - contamination
KW  - operational aspects
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Mertens, Josef
T1  - Laminar flow for supersonic transports
JF  - Proceedings : March 16 - 18, 1992, Congress Centrum, Hamburg, Federal Republic of Germany / organized jointly by: Deutsche Gesellschaft für Luft- und Raumfahrt e.V. ... [Programme committee J. Szodruch ...]
Y1  - 1992
SN  - 3-922010-73-3
N1  - DGLR-Bericht ; 92,06
SP  - 319
EP  - 323
PB  - DGLR
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Mertens, Josef
A1  - Kelm, R.
A1  - Velden, A. van der
T1  - Interdisziplinäre Auslegung eines Verkehrsflugzeugflügels
JF  - DGLR-Jahrbuch 1999 Bd. 3
Y1  - 1999
N1  - DGLR-JT99-156
SP  - 1605
EP  - 1610
ER  - 
TY  - BOOK
A1  - Mertens, Josef
T1  - Instationäre Strömungen von Gasen mit brennbaren Partikeln
Y1  - 1983
N1  - Aachen, Techn. Hochschule, Diss., 1983
CY  - Aachen
ER  - 
TY  - PAT
A1  - Mertens, Josef
A1  - Velden, Alexander van der
A1  - Kelm, Roland
T1  - Flugzeug mit Flügeln, deren maximaler Auftrieb durch steuerbare Flügelkomponenten veränderbar ist : Offenlegungsschrift DE102004045732 ; Offenlegungstag: 30.03.2006 = Aircraft with wings whose maximum lift can be altered by controllable wing components
Y1  - 2006
N1  - Zugleich EP1791755A1. - Volltext über Datenbank: http://publikationen.dpma.de/
PB  - Deutsches Patent- und Markenamt
CY  - München
ER  - 
TY  - JOUR
A1  - Mertens, Josef
A1  - Röger, Wolf
T1  - F-Schlepp: Problem Taumelschwingung
JF  - Aerokurier. 44 (2000), H. 10
Y1  - 2000
SN  - 0341-1281
N1  - in der Bereichsbibliothek unter der Signatur 23 Z 391-2000
SP  - 73
EP  - 73
ER  - 
TY  - JOUR
A1  - Mertens, Josef
A1  - Hünecke, Klaus
T1  - Experimentelle Untersuchung zur Landeeigenschaft von Hyperschall-Fluggeräten / Hünecke, Klaus ; Mertens, Josef
JF  - DGLR-Jahrbuch 1988 Bd. 1
Y1  - 1988
N1  - DGLR-88-123
SP  - 706
ER  -