The efficiency of film cooling will be increased with the increase in blowratio, and it has a highest value in the direction of flow.
冷却效率随吹风比的增加而增大, 且沿气流方向冷却效率存在一极大值;
2
Under the constant blowratio, the higher the mainstream velocity is, the higher the average effectiveness and average heat transfer coefficient are.
同一吹风比下,主流速度较高的,平均效率及平均换热系数也较高。
3
If this were in line with the Basel rules it would take the total ratio to 13.5%, easily enough to have dealt with the losses of Britain's worst blow-up, HBOS.