منابع مشابه
Concurrent Launcher Engineering at Dlr
The SART (Space Launcher Systems Analysis) group of the German Aerospace Center DLR has the task of examining all types of future space launch systems and the thereof required engines by means of modern, computer-aided methods. One of the fundamental aims is to reduce the cost of access to space through the identification of eligible technology. Activities range from stand-alone preliminary stu...
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The potential positive effects of ground proximity on the aerodynamic performance of a \Ving or aerofoil have long been established, but at transonic speeds the fonnation of shock waves betvveen the body and the ground plane would have significant consequences. A numerical study of the aerodynamics of an lu\E2822 aerofoil section in ground eiiect flight was conducted at freestream Mach numbers ...
متن کاملNumerical Simulation of Kinetic Effects in Low-density Hypersonic Aerodynamics
The Direct Simulation Monte-Carlo technique (DSMC) is used for numerical analysis of rarefied-gas hypersonic flows near a blunt plate, wedge, two side-by-side plates and cylinders, sphere, torus, and rotating cylinder. Important kinetic effects that are specific for the transition flow regime have been found: nonmonotonic lift of plates, strong repulsive force between side-by-side plates and cy...
متن کاملNumerical Modelling of Corona Discharges and Their Interaction with Aerodynamics
In the frame of the internal project PUMA (Plasma Used to Master Aerodynamic), ONERA is conducting fundamental studies in order to determine the limits within which air discharge plasmas are able to interact with aerodynamical phenomena. This paper focuses on the physical and numerical modeling of corona discharges and their interaction with aerodynamics. Using a simple plasma kinetic scheme, i...
متن کاملNumerical and Experimental Investigation of Helicopter Fuselage Aerodynamics
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ژورنال
عنوان ژورنال: Chinese Journal of Aeronautics
سال: 2006
ISSN: 1000-9361
DOI: 10.1016/s1000-9361(11)60293-8