压气机级间抽气对下游叶片排气动性能影响的数值研究  

Numerical Investigation of the Effect of Interstage Bleeding on the Aerodynamic Performance of the Downstream Row in an Axial Compressor

作　　者：赵俊明[1] 张成义[1] 冯永志[1] 

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2014年第4期279-280,302,共3页Turbine Technology

基　　金：国家863计划重型燃气轮机重大项目资助(项目编号:2008AA05A302)

摘　　要：以某重型燃气轮机压气机的级间抽气段为研究对象,数值研究了轴流压气机级间抽气对下游叶片排气动性能的影响。数值研究结果表明:随着抽气流量的增加,下游动叶上端壁附面层厚度逐渐变薄,进口轴向速度逐渐增加;上端壁动叶前缘的高压区范围扩大,吸力面低压区范围增大;动叶叶顶附近效率升高明显,整体效率略有增大。The effect of interstage bleeding on the flow-field of the downstream row is numerically investigated for a heavy gas turbine compressor. Numerical simulation results show that the thickness of boundary layer of end wall of the rotor blade row decreased and the axial velocity increased, both of the high pressure area at the leading edge and low pressure area on the suction surface enlarged, the efficiency of the rotor blade row increased slightly with the increase of interstage bleeding mass flow.

关 键 词：轴流压气机 抽气 气动性能 数值模拟 

分 类 号：TK474.8[动力工程及工程热物理—动力机械及工程]