文章詳目資料

Journal of Computers EIMEDLINEScopus

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篇名 A Hybrid Method of Modelling Solid-Induced Turbulence for Incompressible Fluids
卷期 27:2
作者 Xu-Qiang ShaoRong-Hua ZhangYing Yang
頁次 086-099
關鍵字 turbulencefluid simulationsmoothed particle hydrodynamicsparticle-based methodEIMEDLINEScopus
出刊日期 201607

中文摘要

英文摘要

The simulation of turbulent details generated around solid boundaries is crucial for visually realis-tic fluid animations. We present a new hybrid approach aimed at incorporating solid-induced turbulence into the particle-based SPH fluid solver. Based on a novel adaptive sampling method, we split particles in regions around solid boundaries to more finely capture solid-induced turbulence, and merge small particles in regions away from solid boundaries to promote efficiency. Furthermore, a turbulence production model is proposed to identify the small particles which separate from solid boundaries and obtain the vorticity information. We employ a hybrid scheme which combines coarse Euler grid and Lagrangian particle to enforce fluid incom-pressibility and solve turbulence evolution. Our method provides a physically plausible way to model turbu-lence details generated around solid boundaries in particle-based fluid solvers, from which the results demon-strate a significant improvement in the quality of visual details as compared to existing methods.

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