A5079332612- Computational Fluid Dynamics and Aerodynamics
- Gas Dynamics and Kinetic Theory
- Combustion and flame dynamics
- Rocket and propulsion systems research
- Combustion and Detonation Processes
- Plasma and Flow Control in Aerodynamics
- Fluid Dynamics and Turbulent Flows
- Wind and Air Flow Studies
- Radiative Heat Transfer Studies
- Advanced Combustion Engine Technologies
- Aerodynamics and Acoustics in Jet Flows
- Space Exploration and Technology
- Space Satellite Systems and Control
- Fire dynamics and safety research
- Heat transfer and supercritical fluids
- Aerodynamics and Fluid Dynamics Research
- Atmospheric and Environmental Gas Dynamics
- Energetic Materials and Combustion
- Vehicle emissions and performance
- Methane Hydrates and Related Phenomena
- Planetary Science and Exploration
- Atmospheric chemistry and aerosols
- Urban Design and Spatial Analysis
- Meteorological Phenomena and Simulations
- Fluid Dynamics and Heat Transfer
Impulse Dynamics (United States)
2024
Bauhaus-Universität Weimar
2023
Max Planck University of Twente Center for Complex Fluid Dynamics
2017
Carleton University
2014
Utrecht University
2013-2014
European Space Research and Technology Centre
2006-2009
European Space Agency
2006-2009
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2005-2008
University of Technology Sydney
2004
Dienstleistungszentrum Ländlicher Raum
2002
The present investigation is aimed at evaluating the reliability of unstructured TAU Code for hypersonic flows. To improve efficiency, accuracy and robustness, code has been modified concerning, example, residual smoothing, limiters timestep size to handle strong shocks. Validation was done using CFD solutions different European solvers well known test cases such as hyperboloid flare. Further investigations have wedge compression corners study gap flow phenomena. Also, computations a complex...
Testing of the HyShot II scramjet configuration was carried out in High Enthalpy Shock Tunnel Goettingen, HEG, German Aerospace Center, DLR. Computational fluid dynamics (CFD) is applied to support analysis experimental results and for prediction free stream conditions HEG test section. Numerical simulations flow complete fuel on off were performed. This paper describes laminar turbulent modeling approaches CFD presents numerical their comparison experiment both nozzle reacting Scramjet. The...
Covers advancements in spacecraft and tactical strategic missile systems, including subsystem design application, mission analysis, materials structures, developments space sciences, processing manufacturing, operations, applications of technologies to other fields.
The modeling of soot formation and oxidation under industrially relevant conditions has made significant progress in recent years. Simplified models introducing a small number transport equations into CFD code have been used with some success research configurations simulating reciprocating diesel engine. Soot the turbulent flow is calculated on basis laminar flamelet library model. gas phase reactions are modeled detailed mechanism for combustion heptane containing 89 species 855 developed...
In 2002, the HyShot supersonic flight experiment was successfully launched and allowed to access experimental data for combustion. Ground based testing performed in High Enthalpy Shock Tunnel (HEG) of German Aerospace Center (DLR) reproduce Mach 7.8 conditions. The present numerical work focuses on computation experiments HEG considering flows with without combustion fuel injection. Further, variations equivalence ratio resulting influence flow topology are studied.
Abstract The paper presents applications of a moving grid method to the combined problem ignition and premixed flame propagation in closed vessel. This belongs general class adaptive techniques for numerical integration evolutionary partial differential equations is based on lines with variable node position. In present case motion solution are strongly coupled by an implicit formulation. reduced initial value stiff differential‐algebraic system. continuously determined equidistribution...
In Europe, the EC co-funded project FAST20XX aims at exploring borderline between aviation and space by investigating suborbital vehicles. The main focus is identification mastering of critical technologies for such vehicles rather than vehicle development itself. Besides objectives overall layout built around two concepts, paper addresses also progress made during first year project. On one hand, a launched from an airplane providing lowenergy ballistic flight experience using hybrid...
The present paper focusses on the numerical rebuilding of different multiphase flow regimes in a medium scale pipe system (6 inch).Principal investigations are performed by CFD to initiate hydrodynamic instabilities and develop them into correct pattern (slug, stratified, etc.) at given downwind position without applying artificial models or boundary conditions.The predictions obtained volume fluid method (OpenFoam) compared with available experimental data.Numerical respect grid resolution,...
In the present paper, CFD (computational fluid dynamics) computations were performed in order to get insight heavy gas dispersion behavior based on experimental results and extrapolate them a representative full bore rupture scenario of CO2 pipeline. The impact release process is investigated overall dispersion. study focuses importance an accurate source term modeling by means numerical rebuilding data from wind tunnel scale; 2-phase model with low effort developed. Different scale pipeline...
The modelling of soot formation and oxidation under industrially relevant conditions has made significant progress in recent years. Simplified models introducing a small number transport equations into CFD code have been used with some success research configurations simulating reciprocating diesel engine. Soot the turbulent flow is calculated on basis laminar flamelet library model. gas phase reactions are modelled detailed mechanism for combustion heptane containing 89 species 855...