A study of aircraft life efficiency and the interference between propeller slipstream and airfoil aerodynamic force;
螺旋槳滑流與機翼氣動力干擾及飛機升力特性研究
Among the usual methods for calculating slipstream flow-field,it is seldom that the slipstream contraction which definitely existsbehind propeller has been accounted.
常見計算螺旋槳滑流流場方法中,很少計及槳葉面附近必然存在的尾渦收縮。
As compared to those in a single-sized particle system of an identical total solid holdup,the changes in the slip velocity of a dominant component are smaller than those of an accessory component,and not only are the sizes of the two particles approximately the same.
在穩(wěn)定的流動狀態(tài)下,實驗考察了鉛直管內(nèi)粒徑不同的兩組分粒子群的滑流速度,并與每一組分單獨存在時的值進行了對比。
The micro scaling effect and slip effect on th.
對微機電系統(tǒng)(MEMS)旋轉(zhuǎn)機械微軸承,尤其是微型干摩擦、電磁和氣體軸承的研究現(xiàn)狀進行評述,介紹微型干摩擦軸承、微型電磁軸承及微型氣體軸承的各種潤滑特性,主要分析微型氣體軸承的設(shè)計、加工制造及動力潤滑特性問題,分別探討微尺度效應(yīng)和滑流效應(yīng)對微型氣體軸承潤滑特性的影響,并對相關(guān)領(lǐng)域的研究進展進行展望。
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