亚声速低反力度吸附式压气机的非定常数值研究  

Unsteady Simulation of a Subsonic Low-reaction Aspirated Compressor

作　　者：张龙新[1] 王松涛[1] 陈绍文[1] 王仲奇[1] 

机构地区：[1]哈尔滨工业大学发动机气体动力研究中心,黑龙江省哈尔滨市150001

出　　处：《中国电机工程学报》2015年第15期3879-3885,共7页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51206035);国家自然科学基金创新研究群体项目(51121004)~~

摘　　要：为明晰转静干涉对吸附式压气机气动性能的影响,对某单级亚声速低反力度吸附式压气机设计工况点进行数值模拟,详细对比分析了定常与非定常一维气动参数、参数沿展向分布以及内部流场之间的差异。研究结果表明,在转静干涉条件下,单级吸附式压气机时均总压比及效率与定常计算结果相比基本无变化,但吸力面抽吸量增加,端壁抽吸量减小;静叶对动叶势流干涉作用降低了动叶中部区域的做功能力;动叶反"C"型尾迹在静叶内部输运的过程中进一步扭曲,两端向叶展中部靠拢,级出口气动参数沿展向分布均化。In order to discover the influence of rotor-stator interaction on the aspirated compressor aerodynamic performance, numerical simulations were performed on a subsonic low-reaction aspirated compressor, and detail study was carried out to compare the difference of the aerodynamic parameters and flow field with the steady and unsteady methods. As a result, under the rotor-stator interaction, the total pressure ratio and efficiency almost have no change, and the aspirated massflow increases in the suction while decreases in the endwall; the potential effect of the stator on the rotor reduces the rotor total pressure ratio near the midspan; the rotor anti-C type wake is future twisted in the stator passage, and both ends of it are drawn together towards the midspan, which makes the stage outlet aerodynamic parameters distributions much more evenly.

关 键 词：非定常流动 吸附式压气机 动静干涉 尾迹 位势作用 

分 类 号：TK47[动力工程及工程热物理—动力机械及工程]