| 高精度差分格式及多尺度流场特性的数值模拟 |
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| 引用本文： | 傅德薰,马延文.高精度差分格式及多尺度流场特性的数值模拟[J].空气动力学学报,1998,16(1):24-24. |
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| 作者姓名： | 傅德薰 马延文 |
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| 作者单位： | 中国科学院力学研究所 |
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| 摘 要： | 简要介绍了作者近年发展的高精度差分格式，给出了两类格式精度的分析方法，分析了粘性面差分逼近所引入的耗散量低亏效应。文中按群速度将格式分为快型，慢型和混合型三类。对每类格式分析了高频波的传播特性。
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| 关 键 词： | 流场 高精度格式 计算空气动力学 多尺度流场 |
High Order Accurate Schemes and Numerical Simulation of Multi Scale Structures in Complex Flow Fields |
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| Fu,Dexun,Ma,Yanwen.High Order Accurate Schemes and Numerical Simulation of Multi Scale Structures in Complex Flow Fields[J].Acta Aerodynamica Sinica,1998,16(1):24-24. |
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| Authors: | Fu Dexun Ma Yanwen |
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| Abstract: | Two types of accuracy analysis are presented.Schemes are devided into three groups:FST,SLW and MXD.The scheme structures and group velocity effect on numerical solutions are discussed.The Fourier analysis of restriction on mesh Reynolds number shows that the restriction can be relaxed with increasing the order of accuracy of approximation. |
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| Keywords: | high order accurate scheme direct numerical simulation group velocity mesh Reynolds number |
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