Flow Field Modulation

Bo Ren Tsinghua University Chen-Feng Li Swansea University Ming C. Lin University of North Carolina at Chapel Hill Theodore Kim University of California, Santa Barbara Shi-Min Hu Tsinghua University

Fluid Dynamics and Shock Waves Mathematical Physics mathscidoc:1608.22005

IEEE Transactions on Visualization and Computer Graphics, 19, (10), 1708, 2013.10
The nonlinear and non-stationary nature of Navier-Stokes equations produces fluid flows that can be noticeably different in appearance with subtle changes. In this paper we introduce a method that can analyze the intrinsic multiscale features of flow fields from a decomposition point of view, by using the Hilbert-Huang transform method on 3D fluid simulation. We show how this method can provide insights to flow styles and help modulate the fluid simulation with its internal physical information. We provide easy-toimplement algorithms that can be integrated with standard grid-based fluid simulation methods, and demonstrate how this approach can modulate the flow field and guide the simulation with different flow styles. The modulation is straightforward and relates directly to the flow¡¯s visual effect, with moderate computational overhead.
Physically Based Animation, Fluid Simulation, Flow Style, Hilbert-Huang Transform, Fourier, Wavelet
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  title={Flow Field Modulation},
  author={Bo Ren, Chen-Feng Li, Ming C. Lin, Theodore Kim, and Shi-Min Hu},
  booktitle={IEEE Transactions on Visualization and Computer Graphics},
Bo Ren, Chen-Feng Li, Ming C. Lin, Theodore Kim, and Shi-Min Hu. Flow Field Modulation. 2013. Vol. 19. In IEEE Transactions on Visualization and Computer Graphics. pp.1708. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160819002225023122253.
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