一种具有较小数值耗散的对称TVD格式
A TVD SCHEME WITH LESS NUMERICAL DISSIPATION
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摘要: 为了减小TVD格式的数值粘性,提高TVD格式的分辨度,提出了一种具有较小数值耗散的Harten型TVD格式.数值模拟结果表明,这种Harten型TVD格式比原来的Harten格式1及其改进形式Harten-Yee2的TVD格式能更好地模拟出边界层及涡流.Abstract: In order to reduce the numerical viscosities of TVD schemes and improve their resolution, this paper suggests a new TVD scheme of Harten form with less numerical dissipation. Numerical experiments show that such a TVD scheme is better than Harten TVD scheme1 and modified Harten scheme (Harten-Yee TVD scheme2) in simulating boundary layer and vortices.