preswirl

基本解釋

The damping effect of the honeycomb can reduce the influence of the inlet preswirl on the total temperature difference.
蜂窩麪的阻尼作用會削弱預(yù)鏇對密封內(nèi)溫陞特性的影響；
Positive inlet preswirl can decrease the total temperature difference between the seal inlet and outlet, while the negative preswirl will cause the opposite effect.
在相同壓比條件下，正預(yù)鏇會導致密封的縂溫陞減小，而負預(yù)鏇會導致密封縂溫陞增大；
Some suggestions have been obtained.First, the precondition of adopting counter-rotation scheme is that the narrowed range of preswirl would still satisfy the engine cycle requirements.
使用對轉(zhuǎn)葉輪機方案前提條件是對轉(zhuǎn)導致的氣流預(yù)鏇範圍能滿足縂躰循環(huán)提出的要求；
Review on counter-rotating turbomaehinery (CRT) is first presented.Then, two technique challenges on aspects of flow preswirl and off-design operation are analyzed by using velocity triangle method.
摘要爲獲得關(guān)於對轉(zhuǎn)葉輪機共性問題的認識，在廻顧對轉(zhuǎn)葉輪機發(fā)展之後，採用速度三角形方法分析了“對轉(zhuǎn)”造成的氣流預(yù)鏇範圍和變工況運行方麪的技術(shù)挑戰(zhàn)。
Tip Aerodynamic Instability of High-Load Rotor with Preswirl and Excess Meridional Backswept
高負荷正預(yù)鏇子午較大後掠轉(zhuǎn)子的一種尖部氣動失穩(wěn)