Numerical Simulation of Steady and Unsteady Flows Near Film Cooling Holes with Different Shapes;
不同形状气膜冷却孔附近定常和非定常流动的数值模拟
The results of the theory calculation under the steady and unsteady state made by Harbin Engineering University are given out.
概述了全方向推进器工作的基本原理以及研究开发全方向推进器的意义;介绍了国内外针对全方向推进器的研究的现状以及哈尔滨工程大学在全方向推进器的研究方面所作的工作;给出了哈工大的定常和非定常状态下的理论计算结果,以及与日本三菱重工的试验值所作的比较;提出了两种新型全方向推进器调距机构的试验模型。
One and a half stages of a subsonic compressor were simulated with steady and unsteady calculation, comparing the performance with different combination of tip leakage and seal cavity.
本文对某亚音轴流压气机的中间三排叶片进行定常与非定常数值模拟,分析在不同的动叶叶顶间隙和静叶气封间隙组合下压气机的流动特性。
the former being solved by the boundary point methool,and the latter constructed by the analytic way,on natter whetter the problem is defined in finiter or infinite region,and steady or transient.
将微分方程的非齐次问题解化为相应齐次问题解与某个非齐次特解之和 ,前者用边界点法计算 ,后者则通过解析法来构造 ,无论是有限域或无限域、定常或非定常问题 ,本文方法都能得出可靠有效