擬似圧縮性法再考 : 非圧縮流体の漸近的数値解法(数値計算(2),一般講演)
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概要
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On the basis of the fact that the Lattice Boltzmann Method (LBM) essentially solves an artificial compressibility PDE system, an explicit numerical method for the incompressible Navier-Stokes equations without Poisson solver is developed. The scheme does not contain any kinetic ingredients, which is in contrast to LBM. By making use of the asymptotic behavior of solution of the compressible PDE system for small Mach numbers, high order accuracy (4^<th> order in space and 2^<nd> order in time) can be achieved, which is also demonstrated numerically.
- 日本流体力学会の論文
- 2008-09-04
著者
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- 擬似圧縮性法再考 : 非圧縮流体の漸近的数値解法(数値計算(2),一般講演)