film-cooling effectiveness的意思|示意

The cooling effectiveness of cylindrical gas-film cooling holes was numerically investigated, which was determined at different radial angles, momentum ratio and turbulent intensity.

为了探讨在不同径向角下动量比和湍流度对圆柱形气膜孔流动和换热的影响规律，采用数值模拟方法，研究了涡轮叶片的冷却效率。

Film cooling effectiveness of hole rows on leading edge of turbine blade has been studied experimentally. The model is a blunt body with a half cylinder leading edge with two flat side walls.

采用放大的半圆柱状表面模拟涡轮叶片前缘的形状，对叶片前缘单排及两排圆柱形孔的气膜冷却效率进行了测量。

The results show that the cooling effectiveness on concave side is better than suction side with laying film cooling holes in concave side at leading edges of turbine blade.

结果表明，叶片前缘压力面侧布置的气膜孔对叶片压力面有很好的冷却效果；

The results show that, for the present investigation conditions, the film cooling effectiveness will be increased with the increase of blowing ratios and the diameter of film hole;

研究结果表明，在本文研究的参数范围内，离散孔切向进气气膜冷却的冷却效率随吹风比和气膜孔直径的增大而上升；

The film cooling effectiveness contour, laterally averaged film cooling effectiveness, and the flow and temperature distributions near the surface have been obtained.

计算得到了冷却效率云图、冷却效率径向平均值以及近壁面处流场和温度场分布。

Using the method of heat-mass transfer analogy, experimental research was carried on to investigate adiabatic film effectiveness of inclined multi-hole full-coverage film cooling.

采用传热传质类比的方法，对多斜孔壁气膜冷却的绝热温比进行了实验研究。