blades combined with profiled endwalls
結合成型端壁的三維渦輪機(透平)葉片設計
Abstract: This paper describes a novel design for reducing secondary flow in turbines.
摘要:本論文描述了關於減少透平二次回流的新穎設計
The design builds on previous work on non-axisymmetric profiled endwalls by combining them
with three-dimensional blade design.
本設計建立在先前非軸對稱成型端壁的工作基礎上,結合了三維葉片的設計
Profiled endwalls have been shown to effectively reduce secondary flow but have often been used as a ‘retrofit’ application where the blade design is left unchanged.
成型端壁有效地減少了二次回流,但是常常被用作更新應用,葉片設計卻未改變。
In the current paper reverse compound lean is used to prepare the blade row for the application of profiled endwalls.
本文中,為了成型端壁的應用,逆彎扭用來裝備葉柵。
Computational fluid dynamic predictions of the expected performance show benefits over and above those of applying profiled endwalls to the blade row alone.
流體動力學計算的預測期望性能比單獨使用成型端壁的葉柵要好
The paper describes the design of the novel geometry for the so-called
‘Durham Cascade’ and gives predictions of the expected performance.
本文描述了‘Durham 葉柵’的新幾何參數的設計並預測了期望性能。
Keywords: secondary flow, profiled endwalls, turbomachinery, blade design, turbines, nonaxisymmetric
關鍵詞: 二次回流 成型端壁 透平機械
葉片設計 透平 非軸對稱