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Títol:
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The response of an elastic membrane to an external flow as drag enhancement technique
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Autor/a:
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Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las
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Altres autors:
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Universitat Politècnica de Catalunya. Departament de Mecànica de Fluids; Universitat Politècnica de Catalunya. SIC - Sistemes Intel·ligents de Control |
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Abstract:
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The response of an elastic membrane to an external flow and its significance with regard to aerodynamic drag enhancement technique is discussed. It is shown that because the response of an elastic membrane to an external flow and the development of Kelvin-Helmholtz instabilities due to the relative motion between the atmosphere and the spacecraft, the flapping of the membrane will translate in a ulsating pressure onto the walls which added to the skin drag friction will increase the apparent drag force exerted by the surrounding media, i.e, a drag enhancement technique. Utilizing a simplified linear and inviscid stability analysis an estimate for the response of the membrane as well as the drag enhancement was obtained. The technique could be particularly interesting for descent spacecraft vehicles in planets with reduced atmosphere as Mars. |
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Abstract:
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Peer Reviewed |
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Matèries:
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-Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
-Àrees temàtiques de la UPC::Aeronàutica i espai
-Computational fluid dynamics
-Space vehicles
-Space flight to Mars
-Mars spacecraft descent
-Mars manned missions
-Dinàmica de fluids computacional
-Vehicles espacials
-Vol espacial a Mart |
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Drets:
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Tipus de document:
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Article - Versió presentada
Objecte de conferència |
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Publicat per:
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American Institute of Aeronautics and Astronautics (AIAA)
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Compartir:
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