STABLE AND ACCURATE INTERPOLATION OPERATORS FOR HIGH-ORDER MULTIBLOCK FINITE DIFFERENCE METHODS

被引:76
|
作者
Mattsson, K. [1 ]
Carpenter, Mark H. [2 ]
机构
[1] Swedish Def Res Agcy, Dept Underwater Res, SE-16490 Stockholm, Sweden
[2] NASA, Langley Res Ctr, Computat Modeling & Simulat Branch, Hampton, VA 23681 USA
来源
SIAM JOURNAL ON SCIENTIFIC COMPUTING | 2010年 / 32卷 / 04期
关键词
high-order finite difference methods; block interface; numerical stability; interpolation; adaptive grids; NAVIER-STOKES EQUATIONS; BOUNDARY-VALUE-PROBLEMS; BY-PARTS OPERATORS; DISCONTINUOUS MEDIA; WAVE-PROPAGATION; SUMMATION; SCHEMES; APPROXIMATIONS; STABILITY; DISSIPATION;
D O I
10.1137/090750068
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Block-to-block interface interpolation operators are constructed for several common high-order finite difference discretizations. In contrast to conventional interpolation operators, these new interpolation operators maintain the strict stability, accuracy, and conservation properties of the base scheme even when nonconforming grids or dissimilar operators are used in adjoining blocks. The stability properties of the new operators are verified using eigenvalue analysis, and the accuracy properties are verified using numerical simulations of the Euler equations in two spatial dimensions.
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页码:2298 / 2320
页数:23
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