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游性恬. 一种渐变网格方案及其与嵌套网格方案的比较[J]. 大气科学, 1996, 20(4): 473-481. DOI: 10.3878/j.issn.1006-9895.1996.04.12
引用本文: 游性恬. 一种渐变网格方案及其与嵌套网格方案的比较[J]. 大气科学, 1996, 20(4): 473-481. DOI: 10.3878/j.issn.1006-9895.1996.04.12
You Xingtian. A Gradually Variational Grid Scheme and in Comparison with Nested Grid Methods[J]. Chinese Journal of Atmospheric Sciences, 1996, 20(4): 473-481. DOI: 10.3878/j.issn.1006-9895.1996.04.12
Citation: You Xingtian. A Gradually Variational Grid Scheme and in Comparison with Nested Grid Methods[J]. Chinese Journal of Atmospheric Sciences, 1996, 20(4): 473-481. DOI: 10.3878/j.issn.1006-9895.1996.04.12

一种渐变网格方案及其与嵌套网格方案的比较

A Gradually Variational Grid Scheme and in Comparison with Nested Grid Methods

  • 摘要: 本文给出了一种渐变网格及其相应的数值积分方案,并利用线性平流方程,分别采用该渐变网格、不等距网格和3种嵌套网格共5种方案进行数值试验。结果表明,在套网格方案中,采用精度较高且截断误差相近的不同格式进行嵌套计算误差较小;而变网格(包括渐变网格和不等距网格)方案既能简化积分过程,又能避免反射波,从而明显地提高了计算精度。

     

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