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LIGHTNING STOKES SOLVER
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DOI：10.1137/21M1408579.png)
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摘要
En 中文
Gopal and Trefethen recently introduced lightning solvers for the 2D Laplace and Helmholtz equations, based on rational functions with poles exponentially clustered near singular corners. Making use of the Goursat representation in terms of analytic functions, we apply these methods to the biharmonic equation, specifically to 2D Stokes flow. Solutions to model problems are computed to 10-digit accuracy in less than a second of laptop time. As an illustration of the high accuracy, we resolve two or more counterrotating Moffatt eddies near a singular corner.
Keyword:
biharmonic equation
Goursat representation
Stokes flow
lightning solver
期刊
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2.6
论文数:
5.1K
被引数:
1.8W
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