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arXiv 2201.08914math.NAcs.NAmath.AP
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修正Smagorinsky模型的数值分析

Numerical Analysis of a Corrected Smagorinsky Model

Farjana Siddiqua, Xihui Xie

摘要:

经典Smagorinsky模型的解是对(解析)平均速度的近似。由于它是一个涡粘性模型,它不能代表从未解决的波动(解决)的平均速度的能量流。这个模型最近被修改,以纳入这一流动,仍然是适定的。在这里,我们首先开发修改后的模型的一些基本性质。接下来,我们执行一个完整的数值分析的两个算法的近似。它们经过测试并被证明是有效的。

英文摘要:

The classical Smagorinsky model's solution is an approximation to a (resolved) mean velocity. Since it is an eddy viscosity model, it cannot represent a flow of energy from unresolved fluctuations to the (resolved) mean velocity. This model has recently been modified to incorporate this flow and still be well-posed. Herein we first develop some basic properties of the modified model. Next, we perform a complete numerical analysis of two algorithms for its approximation. They are tested and proven to be effective.

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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