NDLI: Flow simulation with locally-refined LBM

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Flow simulation with locally-refined LBM

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Flow simulation with locally-refined LBM

Content Provider	ACM Digital Library
Author	Zhao, Ye Fan, Zhe Qiu, Feng Kaufman, Arie
Abstract	We simulate 3D fluid flow by a locally-refined lattice Boltzmann method (LBM) on graphics hardware. A low resolution LBM simulation running on a coarse grid models global flow behavior of the entire domain with low consumption of computational resources. For regions of interest where small visual details are desired, LBM simulations are performed on fine grids, which are separate grids superposed on the coarse one. The flow properties on boundaries of the fine grids are determined by the global simulation on the coarse grid. Thus, the locally refined fine-grid simulations follow the global fluid behavior, and model the desired small-scale and turbulent flow motion with their denser numerical discretization. A fine grid can be initiated and terminated at any time while the global simulation is running. It can also move inside the domain with a moving object to capture small-scale vortices caused by the object. Besides the performance improvement due to the adaptive simulation, the locally-refined LBM is suitable for acceleration on contemporary graphics hardware (GPU), since it involves only local and linear computations. Therefore, our approach achieves fast and adaptive 3D flow simulation for computer games and other interactive applications.
Starting Page	181
Ending Page	188
Page Count	8
File Format	PDF
ISBN	9781595936288
DOI	10.1145/1230100.1230132
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2007-04-30
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Flow simulation Local refinement Lattice boltzmann model Gpu Embedded grids Interactive fluid simulation
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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