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基于LBM的自由表面流体真实感绘制 被引量：11

Realistic Rendering of Free Surface Fluid Based on Lattice Boltzmann Method
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摘要 针对自由表面流体的模拟,提出一种基于Lattice Boltzmann(LBM)的高效建模和绘制的方法.首先基于浅水方程的LBM模型进行流体建模及表面高度场计算,并提出一种基于Marching Cubes和自由表面算法结合的方法来抽取流体的表面,随后采用考虑移动障碍物的外力叠加机制和自适应加密算法来进行流体交互及表面的网格重构.最后采用硬件加速技术实现了不同自由表面流体的绘制,如溪流、水池浅水流、洪水水淹等真实感效果. A highly effective method of modeling and rendering based on Lattice Boltzmann model（LBM） to simulate the fluid with free surface is presented.Firstly,the LBM model based on shallow water equations is adopted to model the fluid volume and calculate the surface height field.And then a new method combined with Marching Cube and free surface algorithm is proposed to extract the fluid surface.After that,an external stack mechanism of moving obstacles and adaptive grid refinement algorithm are used to realize fluid interaction and reconstruction of surface grid.Finally,the hardware acceleration technology is adopted to achieve realistic rendering of fluid with different free surface,including streams,droplet,and water in pools,etc.
作者 王长波 张卓鹏 张强 钱嫕婧 张洁钰 徐天慧
机构地区 华东师范大学软件学院 浙江大学CAD & CG国家重点实验室
出处 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 2011年第1期104-110,共7页 Journal of Computer-Aided Design & Computer Graphics
基金 国家自然科学基金(61070128,60603076) 上海市青年科技启明星计划项目(08QA1402500) 浙江大学CAD&CG国家重点实验室开放基金(A1008)
关键词 LATTICE BOLTZMANN方法 浅水方程 自由表面 流体模拟 Lattice Boltzmann method shallow water equation free surface fluid simulation
分类号 TP391.1 [自动化与计算机技术—计算机应用技术]
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参考文献18

  • 1Enright D, Marschner S, Fedkiw R. Animation and rendering of complex water surfaces [J]. ACM Transactions on Graphics, 2002, 21(3): 736-744.
  • 2Wei X M, Li W, Mueller K, et al. Simulating fire with texture splats [C] //Proceedings of the Conference on Visualization. Washington D C: IEEE Computer Society Press, 2002:227-234.
  • 3Wei X M, Li W, Mueller K, et al. The lattice-Boltzmann method for simulating gaseous phenomena [J]. IEEE Transactions on Visualization and Computer Graphics, 2004, 10(2) : 164-176.
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  • 5Zhao Y. Modeling natural phenomena with lattice Boltzmann method [D]. New York: State University of New York, 2006.
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  • 8朱红斌,刘学慧,柳有权,吴恩华.基于Lattice Boltzmann模型的液-液混合流模拟[J].计算机学报,2006,29(12):2071-2079. 被引量：19
  • 9Zhu H B, Liu X H, Liu Y Q, et al. Simulation of miscible binary mixtures based on lattice Boltzmann method [J]. Computer Animation and Virtual Worlds, 2006, 17 (3/4) : 403-410.
  • 10Bao K, Wu X L, Zhang H, et al. Volume fraction based miscible and immiscible fluid animation [J]. Computer Animation and Virtual Worlds, 2010, 21(3/4): 401-410.

二级参考文献29

  • 1Fedkiw R,Stam J,Jensen H..Visual simulation of smoke.In:Proceedings of the SIGGRAPH 2001,Los Angeles,California,2001,15～22
  • 2Nguyen D,Fedkiw R,Jensen H..Physically based modeling and animation of fire.In:Proceedings of the SIGGRAPH 2002,San Antonio,Texas,2002,721～728
  • 3Foster N,Fedkiw R..Practical animation of liquids.In:Proceedings of the SIGGRAPH 2001,Los Angeles,California,2001,15～22
  • 4Enright D,Marschner S,Fedkiw R..Animation and rendering of complex water surfaces.In:Proceedings of the SIGGRAPH 2002,San Antonio,Texas,2002,736～744
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  • 9Liu Y.Q,Zhu H.B,Liu X.H,Wu E.H..Real-time simulation of physically based on-surface flow.The Visual Computer (Pacific Graphics 2005 issue),2005,21 (8 ～ 10):727 ～734
  • 10Premoze S,Tasdizen T,Bigler J,Lefohn A,Whitaker R.T..Particle-based simulation of fluids.Computer Graphics Forum,2003,22(3):401～410

共引文献18

同被引文献138

引证文献11

二级引证文献41

计算机辅助设计与图形学学报
2011年 第1期

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