變彎度葉柵性能及流場研究

打開文本圖片集

【摘要】變彎度葉片是由兩段或者三段構(gòu)成，前緣部分固定不動，后半部分可以調(diào)節(jié)。本文對變彎度葉柵不同彎度時的流場及氣動性能參數(shù)進(jìn)行數(shù)值計算分析。結(jié)果表明，隨著彎度位置從前緣向后緣移動，氣流轉(zhuǎn)折角逐漸變小，對出口氣流的調(diào)節(jié)能力越強(qiáng)。變彎度葉片的應(yīng)用既防止了喘振又保證了壓氣機(jī)的效率。

【關(guān)鍵詞】變彎度葉片；數(shù)值計算；氣流角；壓氣機(jī)

【DOI編碼】10.3969/j.issn.1674-4977.2024.03.054

Numerical Investigation on the Influence of Variable-Camber Cascades on Compressor Performance and Flow Field

GUO Anqi， ZHANG Guochen， YU Hanke， LI Zhipeng， ZHOU Yitong， SUN Yinuo

（ShenyangAerospace University〔School ofAero-engine〕， Shenyang 110136， China）

Abstract： The variable-camber blade is composed of two or three sections， with the leading edge fixed and the rear half adjustable. This article conducts numerical calculation and analysis on the flow field and aerodynamic performance parameters of variable-camber cascades with different curvature. The results show that as the curvature position moves from the leading edge to the trailing edge， the airflow turning angle gradually decreases， and the ability to regulate the outlet airflow becomes stronger. The application of variablecamber blades not only prevents surging but also ensures the efficiency of the compressor.

Keywords： variable-camber blade； numerical calculation； flow angle； compressor

0引言

發(fā)動機(jī)喘振是危害發(fā)動機(jī)性能的重要因素。（剩余3659字）