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《Journal of Astronautics》 2009-01
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Numerical Computation of External Heat Flux of Low Earth Orbit Spacecraft by RUD

ZHANG Tao,SUN Bing(School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China)  
Based on Lambert's law,the formulas of external heat flux computation of ray uniform distribution on radiant semi-sphere were deduced.Triangle mesh was used to express outline of complicated configuration and judge shading.According to position of surface cells,external heat flux was computed with integral method for no shaded surface and with ray uniform distribution for shaded surface.It was demonstrated by a comparison with Monte Carlo method that the computing precision and efficiency of this method is higher and mutual watching and shading judgment method is correct and high efficient.
【CateGory Index】: V443
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1 Sun Bing\ Fang Jie (School of Astronautics, Beijing University of Aeronautics and Astronautics) Zhang Huazhao\ Zhang Fuzhong (Beijing Institute of Astronautical Systems Engineering);Study on Residual Propellant Vaporized in Tank of Some Launch Vehicle Third Stage[J];Journal of Beijing University of Aeronautics and Astronautics;2003-05
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1 Yang Zhengjun1 Zhao Long1 Li Zhijun2 (1 School of Computer, National University of Defense Technology, Changsha 410073, China; 2 School of Electrical Science and Engineering, National University of Defense Technology, Changsha 410073, China);Study and Implementation of Infrared Images Simulation Technology of a Satellite[A];[C];2008
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【Co-references】
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1 Zhao lixin(Changchun Institute of Optics and Fine Mechanics, Chinese Academy of Sciences,Changchun 130022);A New Method to Calculate The Heat Flux in Spacecraft Orbits[J];OPTICS AND PRECISION ENGINEERING;1995-06
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1 WANG Jian She (Changchun Institute of Optics and Fine Mechanics, Chinese Academy of Sciences,Changchun 130022 );Calculation and Software Design of the Orbit External Thermal Flux of a Space Optical Remote Sense[J];OPTICS AND PRECISION ENGINEERING;1999-06
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3 Weng Jianhua; Pan Zengfu(Beijing Institute of Spacecraft Systems Engineering, Beijing 100086)Min Guirong(Chinese Academy of Space Technology, Beijing 100081);CALCULATING ORBITAL HEAT FLUXES OF CONCAVE SURFACES AND MUTUALLY VISIBLE SURFACES WITH SPECULAR REFLECTION[J];CHINESE SPACE SCIENCE AND TECHNOLOGY;1994-04
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