| 多重网格技术在复杂粘性流场计算中的应用及研究 |
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| 引用本文： | 牟斌,肖中云,周铸,陈作斌,刘刚.多重网格技术在复杂粘性流场计算中的应用及研究[J].空气动力学学报,2006,24(1):51-54,66. |
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| 作者姓名： | 牟斌 肖中云 周铸 陈作斌 刘刚 |
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| 作者单位： | 中国空气动力研究与发展中心,四川,绵阳,621000 |
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| 摘 要： | 流体力学控制方程的数值求解过程中,当网格加密、粘性效应强或来流马赫数低的时候,流场收敛非常缓慢。本文在多块网格、LUSGS隐式格式基础上采用多重网格技术,计算了NLR7301case#1两段翼型的低速绕流及DLRF4跨声速流场,在复杂二维、三维粘性流场求解中获得了满意的加速收敛效果。文中还比较了V循环、W循环的加速效率,为多重网格的工程应用奠下基础。
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| 关 键 词： | 多重网格 隐式格式 加速效率 |
| 文章编号： | 0258-1825（2006）01-0051-05 |
| 收稿时间： | 2005-02-08 |
| 修稿时间： | 2005-02-082005-05-11 |
Application and investigation of multiblock multigrid method in complicated viscous flow fields calculation |
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| MOU Bing,XIAO Zhong-yun,ZHOU Zhu,CHEN Zhuo-bing,LIU Gang.Application and investigation of multiblock multigrid method in complicated viscous flow fields calculation[J].Acta Aerodynamica Sinica,2006,24(1):51-54,66. |
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| Authors: | MOU Bing XIAO Zhong-yun ZHOU Zhu CHEN Zhuo-bing LIU Gang |
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| Institution: | China AerodTnamlcs Research and Development Gtnter . Mianyang Sichttan 621000, China |
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| Abstract: | When the number of grid is very great or viscous effects dominates or sometimes the speed of flow is low,the rate of convergence slows down dramatically,resulting in inefficient solution technique.A promising way of acceleration is the introduction of multigrid algorithms. In this paper,the multigrid method is presented associated with LUSGS implicit scheme to calculating the low speed flow field around the NLR7301 case#1 and the transonic flow field around the DLRF4 wing-body configuration,all results confirm the efficiency of multigrid.Also,the efficiency of V cycle and W cycle are compared.These results validate the possibility of the multigrid method in engineering applications. |
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| Keywords: | multigrid implicit scheme efficiency |
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