Numerical Simulation of Low Supersonic Flow Around a Sphere

The controlled equations defined in a physical plane are changed into those in a computational plane with coordinate transformations suitable for different Mach number M The computational area is limited in the body surface and in the vicinities of detached shock wave and sonic line.Thus the area ca...

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Veröffentlicht in:	中国科学：数学英文版 1994 (1), p.52-61
1. Verfasser:	郑之初唐安民林同骥
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Sprache:	eng
Schlagworte:	detached flow flowfield forward line low shock sonic sphere supersonic wave
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description	The controlled equations defined in a physical plane are changed into those in a computational plane with coordinate transformations suitable for different Mach number M The computational area is limited in the body surface and in the vicinities of detached shock wave and sonic line.Thus the area can be greatly cut down when the shock wave moves away from the body surface as M∝→1.Highly accurate,total variation diminishing(TVD)finite-difference schemes are used to calculate the low supersonic flowfield around a sphere.The stand-off distance,location of sonic line,etc.are well comparable with experimental data.The long pending problem concerning a flow passing a sphere at 1.3≥M∝>1 has been settled,and some new results on M∝=1.05 have been presented
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language	eng
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source	Alma/SFX Local Collection
subjects	detached flow flowfield forward line low shock sonic sphere supersonic wave
title	Numerical Simulation of Low Supersonic Flow Around a Sphere
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