film speed scale 中文意思是什麼
film speed scale
解釋
膠片感光度等級-
Film cooling of the surface of a gas turbine blade was studied in a large - scale low - speed opening wind tunnel according to actual requirement of the design of aero - engine. the surface of a gas turbine blade was cooled by cylindrical holes in the experiment, with the hole number of fifteen in stator and eight in rotor
應航空發動機設計的要求,在大尺寸低速葉柵傳熱風洞中分別對發動機渦輪導向葉片和動葉表面的氣膜冷卻特性進行了研究,具體研究在不同氣膜孔出流時,在不同主流雷諾數和吹風比情況下葉片表面局部換熱系數的分佈規律。 -
For a large - scale high - speed rotor - bearing system, the oil - film force of sliding - bearing may cause oil - film instability of the system, which has great impact on accident prevention and safety operation
對于大型?轉子軸承系統,滑動軸承的油膜力引起的轉子運動系統油模失穩現象是突出問題,直接關繫到機組的災變防治和安全可靠運行。
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