双重时间步方法在非定常流场模拟中的应用

被引:13
作者
邹正平
徐力平
机构
[1] 北京航空航天大学!教研室
[2] 北京
关键词
双重时间步方法; 非定常流动; 数值模拟; 叶轮机动静干涉;
D O I
暂无
中图分类号
V211.3 [计算空气动力学];
学科分类号
0801 ; 080103 ; 080104 ;
摘要
在非定常流动的数值模拟中引入隐式双重时间步方法 ,并对 2种经典的非定常流动现象进行计算 ,取得令人满意的结果 ,证明双重时间步方法具有较好的精度和较快的收敛速度。应用此方法对压气机动静叶非定常流场进行研究 ,结果表明高损失区集中在边界层附近及尾迹区 ;上游叶片排尾迹对下游叶片通道流动影响很大 ,它增加边界层损失 ,并在通道中与主流发生强烈掺混 ,最终使得出口流场及损失分布较为均匀。
引用
收藏
页码:317 / 321
页数:5
相关论文
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