A Characteristic-based  AUSMD  Scheme to Solve the Shock and Droplet Flow Problems

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题名:	A Characteristic-based AUSMD Scheme to Solve the Shock and Droplet Flow Problems
作者:	Niu, Yang-Yao
关键词:	AUSMD;two-phase flow;shock wave;droplet
日期:	2016-12-03
上传时间:	2017-04-20 02:10:16 (UTC+8)
出版者:	Center for Advanced Study in Theoretical Sciences
摘要:	In this work, a hybrid numerical flux combing AUSMD and linearized approximated solver is proposed to solve the compressible two-phase flow models. The interaction of shock and rarefaction waves, the free surface and the formation and collapse of cavitation bubbles are captured clearly no matter in the 2D and 3D cases. The proposed AUSMD scheme has been applied to gas and liquid fluids universally to capture fluid discontinuities, such as the fluid interfaces and shock waves, accurately for the Ransom’s faucet problem, air-water shock tube problems, 1D stiffened water-air shock tube and 2D shock-gas interaction problems under large ratios of pressure, density and volume of fraction without the expensive cost of tedious computer time. In addition, the proposed approach is shown to deliver a good resolution of the shock-front, rarefaction and cavitation inside the evolution of high-speed droplet impact on the wall.
關聯:	proceeding of nternational Conference on Flow Physics and its Simulation
显示于类别:	[航空太空工程學系暨研究所] 會議論文

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