抽吸对平面叶栅流场品质改善作用数值研究

taptap下载安装安卓学报 ›› 2022, Vol. 40 ›› Issue (5): 51-58.

抽吸对平面叶栅流场品质改善作用数值研究

白杰，杨昭，傅文广，孙鹏

（taptap下载安装安卓安全科学与工程学院，天津300300）

收稿日期:2021-09-23 修回日期:2022-01-05 出版日期:2022-10-15 发布日期:2023-10-27
作者简介:白杰（1963—），男，辽宁铁岭人，教授，硕士，研究方向为航空发动机适航理论与技术.
基金资助:
中央高校基本科研业务费专项（3122019170）

Numerical study on the effect of suction on the flow field quality improvement in a plane cascade

BAI Jie, YANG Zhao, FU Wenguang, SUN Peng

（School of Safety Science and Engineering, CAUC, Tianjin 300300, China）

Received:2021-09-23 Revised:2022-01-05 Online:2022-10-15 Published:2023-10-27

摘要/Abstract

摘要： 为改善平面叶栅风洞实验中叶栅流场品质，并明确上下侧板抽吸相关参数和了解侧板抽吸对流场的影响规律，采用数值模拟方法研究抽吸缝宽度与抽吸背压对流场品质的改善效果。研究结果发现：通过合理改变抽吸变量可有效改善叶栅中下部连续3个通道栅前流场均匀性与栅后流场周期性，使得进出口马赫数误差＜0.01，气流角误差＜0.5°，同时出口以T₅通道为参照在相同误差范围内具有较好的周期性，从而明确对于栅前监控点位置的选择应位于T₄~T₆通道之间；抽吸缝为20mm、抽吸背压为80kPa时可以取得较好的流场品质且满足工程需求。

关键词: 平面叶栅, 风洞, 流场, 抽吸, 数值模拟

Abstract: Improving the quality of the cascade flow field is particularly important for the plane cascade wind tunnel experiment, clarifying the relevant parameters of the upper and lower side plate suction, and understanding the influence of the side plate suction on the flow field, numerical simulation methods were used to study the effect of the suction slit width and the suction back pressure for the improvement effect of flow field quality. The results show that by reasonably changing the suction variable, the inlet uniformity and outlet periodicity of the cascade three channels in the middle and lower part can be effectively improved, so that the deviation of the inlet and outlet Mach number is less than 0.01, the airflow angle deviation is less than 0.5°, and the outlet channel uses T5 passage to refer to a better periodicity within the same error range, it is clear that the selection of the position of the monitoring point in front of the grid should be between T4 - T6 passage, and that the suction gap is 20 mm and the suction back pressure is 80 kPa. Thus better flow field quality is achieved and engineering needs are met.

Key words: plane cascade, wind tunnel, flow field, suction, numerical simulation

中图分类号:

V235

白杰, 杨昭, 傅文广, 孙鹏. 抽吸对平面叶栅流场品质改善作用数值研究[J]. taptap下载安装安卓学报, 2022, 40(5): 51-58.

BAI Jie, YANG Zhao, FU Wenguang, SUN Peng. Numerical study on the effect of suction on the flow field quality improvement in a plane cascade[J]. Journal of Civil Aviation University of China, 2022, 40(5): 51-58.

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