@book{MertensVeldenKelmetal.2000, author = {Mertens, Josef and Velden, Alexander van der and Kelm, Roland and Kokan, David}, title = {Application of MDO to large subsonic transport aircraft}, publisher = {American Institute of Aeronautics and Astronautics}, address = {Reston, Va.}, pages = {12 S. : zahlr. Ill. u. graph. Darst.}, year = {2000}, language = {en} } @misc{MertensVeldenKelm2006, author = {Mertens, Josef and Velden, Alexander van der and Kelm, Roland}, title = {Flugzeug mit Fl{\"u}geln, deren maximaler Auftrieb durch steuerbare Fl{\"u}gelkomponenten ver{\"a}nderbar ist : Offenlegungsschrift DE102004045732 ; Offenlegungstag: 30.03.2006 = Aircraft with wings whose maximum lift can be altered by controllable wing components}, publisher = {Deutsches Patent- und Markenamt}, address = {M{\"u}nchen}, pages = {6 S. : Ill.}, year = {2006}, language = {de} } @article{MertensRoeger2000, author = {Mertens, Josef and R{\"o}ger, Wolf}, title = {F-Schlepp: Problem Taumelschwingung}, series = {Aerokurier. 44 (2000), H. 10}, journal = {Aerokurier. 44 (2000), H. 10}, isbn = {0341-1281}, pages = {73 -- 73}, year = {2000}, language = {de} } @misc{MertensLajain2002, author = {Mertens, Josef and Lajain, Henri}, title = {Method of fabricating leading edge nose structures of aerodynamic surfaces : patent no.: US 6,415,510 B2 ; date of patent: Jul. 9, 2002}, publisher = {United States Patent and Trademark Office}, address = {[Washington, DC]}, pages = {12 S. : Ill.}, year = {2002}, language = {en} } @article{MertensKlevenhusenJakob1987, author = {Mertens, Josef and Klevenhusen, K. D. and Jakob, H.}, title = {Accurate Transonic Wave Drag Prediction Using Simple Physical Models}, series = {AIAA-Journal. 25 (1987), H. 6}, journal = {AIAA-Journal. 25 (1987), H. 6}, isbn = {0001-1452}, pages = {799 -- 805}, year = {1987}, language = {en} } @article{MertensKelmVelden1999, author = {Mertens, Josef and Kelm, R. and Velden, A. van der}, title = {Interdisziplin{\"a}re Auslegung eines Verkehrsflugzeugfl{\"u}gels}, series = {DGLR-Jahrbuch 1999 Bd. 3}, journal = {DGLR-Jahrbuch 1999 Bd. 3}, pages = {1605 -- 1610}, year = {1999}, language = {de} } @article{MertensHuenecke1988, author = {Mertens, Josef and H{\"u}necke, Klaus}, title = {Experimentelle Untersuchung zur Landeeigenschaft von Hyperschall-Flugger{\"a}ten / H{\"u}necke, Klaus ; Mertens, Josef}, series = {DGLR-Jahrbuch 1988 Bd. 1}, journal = {DGLR-Jahrbuch 1988 Bd. 1}, pages = {706}, year = {1988}, language = {de} } @article{MertensHenke2001, author = {Mertens, Josef and Henke, Rolf}, title = {Adaptive technologies for future civil air transport}, series = {Air \& Space Europe. 3 (2001), H. 3-4}, journal = {Air \& Space Europe. 3 (2001), H. 3-4}, isbn = {1247-5793}, pages = {80 -- 82}, year = {2001}, language = {en} } @incollection{MertensBecker1989, author = {Mertens, Josef and Becker, K.}, title = {Numerical solution of flow equations : an aircraft designer's view}, series = {Nonlinear hyperbolic equations - theory, computation methods, and applications : proceedings of the 2nd International Conference on Nonlinear Hyperbolic Problems, Aachen, FRG, March 14 to 18, 1988. - (Notes on Numerical Fluid Mechanics ; 24)}, booktitle = {Nonlinear hyperbolic equations - theory, computation methods, and applications : proceedings of the 2nd International Conference on Nonlinear Hyperbolic Problems, Aachen, FRG, March 14 to 18, 1988. - (Notes on Numerical Fluid Mechanics ; 24)}, editor = {Ballmann, Josef}, publisher = {Vieweg}, address = {Braunschweig}, isbn = {3-528-08098-1}, doi = {10.1007/978-3-322-87869-4_41}, pages = {403 -- 412}, year = {1989}, abstract = {Today the most accurate and cost effective industrial codes used in aircraft design are based on the full potential equation coupled with boundary layer equations. However, these are not capable to solve complicated three-dimensional problems of vortical flows and shocks. On the other hand Euler and Navier-Stokes codes are too expensive and not accurate enough for design purposes, especially in regard of drag and interference prediction. The reasons for these deficiencies are investigated and a way to overcome them by future developments is demonstrated.}, language = {en} } @inproceedings{Mertens2000, author = {Mertens, Josef}, title = {Laminar leading edges: manufacturing, contamination, and operational aspects - results from the German RaWid programme}, year = {2000}, abstract = {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.}, subject = {Laminare Str{\"o}mung}, language = {en} }