@inproceedings{PoojitganontIzweikBerg, author = {Poojitganont, Thanapol and Izweik, Husni Taher and Berg, Heinz Peter}, title = {"Simulation of Flow Field inside the Wankel Combustion Chamber"}, language = {en} } @inproceedings{AntoshkivKruegerSarradjetal., author = {Antoshkiv, Oleksiy and Kr{\"u}ger, Falko and Sarradj, Ennes and Berg, Heinz Peter}, title = {Acoustical Diagnostic of Spray-Airflow Interaction in a Modern Aero Engine Combustor Chamber}, series = {Deutscher Luft- und Raumfahrtkongress 2009, Bd. Manuskripte}, booktitle = {Deutscher Luft- und Raumfahrtkongress 2009, Bd. Manuskripte}, publisher = {DGLR}, address = {Bonn}, isbn = {978-3-932182-64-8}, language = {en} } @inproceedings{FeilerBerg, author = {Feiler, Christoph and Berg, Heinz Peter}, title = {Aerothermale Auslegungsvalidierung von Plattformkonfigurationen mittels Experiment und numerischer Verfahren}, series = {Motto: 100 Jahre Motorflug - 112 Jahre Menschenflug: Visionen gestalten Zukunft, Deutscher Luft- und Raumfahrtkongress 2003, M{\"u}nchen, 17. bis 20. November 2003, Bd. 3}, booktitle = {Motto: 100 Jahre Motorflug - 112 Jahre Menschenflug: Visionen gestalten Zukunft, Deutscher Luft- und Raumfahrtkongress 2003, M{\"u}nchen, 17. bis 20. November 2003, Bd. 3}, publisher = {DGLR}, address = {Bonn}, pages = {1933 -- 1950}, language = {de} } @inproceedings{PrechavutBerg, author = {Prechavut, Nontavut and Berg, Heinz Peter}, title = {An Experimental Study on Structural Characteristics of Cantilever-Type Foil Bearings}, series = {Deutscher Luft- und Raumfahrtkongress 2015}, booktitle = {Deutscher Luft- und Raumfahrtkongress 2015}, publisher = {Deutsche Gesellschaft f{\"u}r Luft- und Raumfahrt - Lilienthal-Oberth e.V.}, address = {Bonn}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-201511275091}, abstract = {Capable of high-speed and high-temperature operation, together with an "oil-free" technology concept, gas foil bearings are a perfect solution for a novel light weight (small scale) turbo machinery. While the gas film geometry and the pressure build-up are similar to other gas lubricated bearings, and as it has been well formulated in the hydrodynamic lubrication theory, the compliant structure of the foil bearings have a variety of forms and characteristics. The cantilever-type of foil bearings are one sort of foil bearings that uses a pattern of small cantilever beams as support structure which is very robust and eases the manufacturing process. The aim of this paper is to present a measurement method and results of structural stiffness and damping characteristics of exemplary 50 mm tree-lobes radial foil bearings. Static structural test result shows that the bearing has a wide range of linear stiffness in the bearing's center area. The ramp of cartridge inner surface contour causes a cross coupling effect which may cause instability by a large rotor orbit. Increasing in bear - ing preload result in slightly increasing in static stiffness. In dynamic excitation test, the result shows that the dynamic stiffness is about three times higher than the static one. With a simple model of dry friction, the result shows that the dry friction coefficient is in a range of 0.4 to 0.7. The result also shows that the dynamic stiffness is more sensitive to vibration amplitude than frequency. While the damping decreases significantly with exciting frequency, especially at the vicinity of the rigid body resonance. The result evidence that the magnitude of displacement has a great effect on damping. As displacement amplitude decreases, the bearing is better in damping.}, language = {en} } @inproceedings{BergIzweikPoojitganontetal., author = {Berg, Heinz Peter and Izweik, Husni Taher and Poojitganont, Thanapol and Antoshkiv, Oleksiy}, title = {Anwendung fortschrittlicher Simulationswerkzeuge in der Wankelmotorenentwicklung}, language = {de} } @inproceedings{RebeBentonSchiffer, author = {Rebe, Guido and Benton, R. and Schiffer, Heinz Peter}, title = {Ballistic Film Cooling of Turbine Nozzle Guide Vane Platforms}, language = {de} } @inproceedings{AntoshkivMykhalyukBerg, author = {Antoshkiv, Oleksiy and Mykhalyuk, Maryan and Berg, Heinz Peter}, title = {BOOST-Modeling of Turbo-Charging in the Wankel Engine working on Diesel Cycle}, language = {en} } @inproceedings{BergAntoshkivHimmelbergetal., author = {Berg, Heinz Peter and Antoshkiv, Oleksiy and Himmelberg, Axel and Izweik, Husni Taher and Poojitganont, Thanapol}, title = {Brennverfahrensentwicklung f{\"u}r eine neuartige Kreiskolbenmotorenfamilie, Wankelmotorenentwicklung}, language = {de} } @phdthesis{Liu, author = {Liu, Fushui}, title = {CFD - study on hydrogen engine mixture formation and combustion}, publisher = {Cuvillier}, address = {G{\"o}ttingen}, isbn = {3-86537-167-1}, abstract = {Darstellung der Simulation der Wasserstoffeinspritzung und Gemischbildung anhand geeigneter Modele}, language = {en} } @inproceedings{Antoshkiv, author = {Antoshkiv, Oleksiy}, title = {Co-generator based on a multi-fuel rotary engine. Probleme der Energieeinsparung}, language = {en} }