一种减缩CFD非定常分析计算量的方法  

One Way to Reduce Unsteady Computational Complexity in CFD

作　　者：杨鸣[1] 赵世平[1] 王汉平[1] 张煜冰 王邵助 

机构地区：[1]北京理工大学宇航学院,北京100081 [2]北京机电工程研究所11室,北京1000781

出　　处：《四川兵工学报》2013年第12期4-7,共4页Journal of Sichuan Ordnance

摘　　要：利用飞行器在自由空间中运动流场的特点,提出了减缩CFD分析计算量的方法;通过算例验证,新的计算方案能够比传统方案减少30%以上的计算量;新计算方案得到的流场形态结果与传统计算方案基本一致,阻力计算结果差异在10的负三次量级,升力计算结果差异在10的负二次方量级;该方法简单易行,具备工程可实施性,具有工程应用前景。This paper proposes a method that can reduce unsteady computational complexity in CFD, which bases on the characteristics of aircraft flow field. The new scheme can reduce the computational complexity more than 30% compared to conventional solutions by verification. The flow pattern obtained by the new calculation scheme is consistent with the traditional computing solutions, drag results has several thousandths difference and lift results has a few percent difference. The method is simple and feasible.

关 键 词：航行体 自由空间 运动流场 减缩 计算量 

分 类 号：TJ760.2[兵器科学与技术—武器系统与运用工程]