Pierre vueghs (6 risultati)

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Taschenbuch. Condizione: Neu. Innovative Ray Tracing Algorithms for Space Thermal Analysis | From rendering to space thermal applications | Pierre Vueghs | Taschenbuch | 284 S. | Englisch | 2016 | LAP LAMBERT Academic Publishing | EAN 9783659115806 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu. …

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In order to design the thermal control system of a spacecraft (satellite, space probe or manned vehicle), thermal engineer uses dedicated software. As the radiative component may play a predominant role, a ray tracing algorithm is used to compute view factors and radiative exchanges between surfaces of finite dimensions, assumed isothermal. External flows are also evaluated by ray tracing while the conductive couplings are usually encoded manually by the user. As ray tracing is based on a random process, the achieved accuracy is determined by the number of traced rays. In general, the choice of the number of rays is left at the discretion of the engineer, which can lead to errors. Another disadvantage of ray tracing is its low convergence. An acceleration method of ray tracing is necessary. An order of magnitude improvement in performance over existing Monte Carlo ray tracing techniques used for space thermal analysis, a statistical accuracy control to lead the thermal engineer during ray tracing, a simple approach combining conduction and radiation, geometry and finite elements, these are parts of the objectives reached in this thesis. 284 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - In order to design the thermal control system of a spacecraft (satellite, space probe or manned vehicle), thermal engineer uses dedicated software. As the radiative component may play a predominant role, a ray tracing algorithm is used to compute view factors and radiative exchanges between surfaces of finite dimensions, assumed isothermal. External flows are also evaluated by ray tracing while the conductive couplings are usually encoded manually by the user. As ray tracing is based on a random process, the achieved accuracy is determined by the number of traced rays. In general, the choice of the number of rays is left at the discretion of the engineer, which can lead to errors. Another disadvantage of ray tracing is its low convergence. An acceleration method of ray tracing is necessary. An order of magnitude improvement in performance over existing Monte Carlo ray tracing techniques used for space thermal analysis, a statistical accuracy control to lead the thermal engineer during ray tracing, a simple approach combining conduction and radiation, geometry and finite elements, these are parts of the objectives reached in this thesis.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -In order to design the thermal control system of a spacecraft (satellite, space probe or manned vehicle), thermal engineer uses dedicated software. As the radiative component may play a predominant role, a ray tracing algorithm is used to compute view factors and radiative exchanges between surfaces of finite dimensions, assumed isothermal. External flows are also evaluated by ray tracing while the conductive couplings are usually encoded manually by the user. As ray tracing is based on a random process, the achieved accuracy is determined by the number of traced rays. In general, the choice of the number of rays is left at the discretion of the engineer, which can lead to errors. Another disadvantage of ray tracing is its low convergence. An acceleration method of ray tracing is necessary. An order of magnitude improvement in performance over existing Monte Carlo ray tracing techniques used for space thermal analysis, a statistical accuracy control to lead the thermal engineer during ray tracing, a simple approach combining conduction and radiation, geometry and finite elements, these are parts of the objectives reached in this thesis.OmniScriptum SRL, Str. Armeneasca 28/1, office 1, 2012 Chisinau 284 pp. Englisch.…