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arXiv 1009.3308math.NAcs.NA
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旋转球面上Navier-Stokes方程的伪谱求积方法

A pseudospectral quadrature method for Navier-Stokes equations on rotating spheres

Colorado School of Mines(科罗拉多矿业学院);University of New South Wales(新南威尔士大学)

M. Ganesh, Q. T. Le Gia, I. H. Sloan

AI总结:

针对旋转单位球面上的不可压缩表面Navier-Stokes方程,提出并实现了一种基于Gevrey正则性的谱精度伪谱求积方法,并采用稳定自适应时间离散化。

摘要:

本文描述、分析并实现了一种伪谱求积方法,用于旋转单位球面上不可压缩表面Navier-Stokes方程的全局计算机建模。我们的谱精度数值误差分析基于球面上Navier-Stokes方程解的Gevrey正则性。该方案设计便于应用快速评估技术,如快速傅里叶变换(FFT),实现基于稳定的自适应时间离散化。

英文摘要:

In this work, we describe, analyze, and implement a pseudospectral quadrature method for a global computer modeling of the incompressible surface Navier-Stokes equations on the rotating unit sphere. Our spectrally accurate numerical error analysis is based on the Gevrey regularity of the solutions of the Navier-Stokes equations on the sphere. The scheme is designed for convenient application of fast evaluation techniques such as the fast Fourier transform (FFT), and the implementation is based on a stable adaptive time discretization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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