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Topography Modeling in Atmospheric Flows Using the Immersed Boundary MethodNumerical simulation of flow over complex geometry needs accurate and efficient computational methods. Different techniques are available to handle complex geometry. The unstructured grid and multi-block body-fitted grid techniques have been widely adopted for complex geometry in engineering applications. In atmospheric applications, terrain fitted single grid techniques have found common use. Although these are very effective techniques, their implementation, coupling with the flow algorithm, and efficient parallelization of the complete method are more involved than a Cartesian grid method. The grid generation can be tedious and one needs to pay special attention in numerics to handle skewed cells for conservation purposes. Researchers have long sought for alternative methods to ease the effort involved in simulating flow over complex geometry.
Document ID
Acquisition Source
Ames Research Center
Document Type
Ackerman, A. S.
(NASA Ames Research Center Moffett Field, CA, United States)
Senocak, I.
(Stanford Univ. Stanford, CA, United States)
Mansour, N. N.
(Stanford Univ. Stanford, CA, United States)
Stevens, D. E.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2004
Publication Information
Publication: Annual Research Briefs, 2004: Center for Turbulence Research
Subject Category
Numerical Analysis
Distribution Limits
Work of the US Gov. Public Use Permitted.
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