摘要
对GE-E3叶片在三种运动工况下的结果进行了数值模拟,即:叶片旋转、端壁静止(真实工况);叶片静止、端壁运动(相对运动工况);叶片和端壁均静止(静止工况)。研究同时考虑了间隙高度对结果的影响,选取了三种间隙高度(分别为叶片高度的1%、2.5%、4%)。模拟结果表明:对于静止工况,在间隙高度为叶片高度的1%时,叶顶换热结果与真实旋转工况差异较大;在三种间隙高度下,相对运动工况换热结果与真实工况比较接近,是一种很好的模拟真实工况的方案。
To compare the flow and heat transfer performances between the stationary balde case and real rotat-ing case,numerical simulations were performed at three movement cases using a typical GE-E3 blade model :the blade is rotating,but the shroud is stationary(real case);the blade is stationary,but the shroud moves(relative movement case);the blade is stationary, and the shroud is also stationary(stationary case). The effect of tip clearance height is also concerned. Three tip clearances,1%,2.5% and 4% height of the blade, were simulated.The results are while the tip clearance is 1% of the blade height,there are obvious differences between the stationary case and real case;the relative movement case is a good option,because there are little deviations between the heat transfer performance of the relative movement case and the real case at all the three tip clear-ances.
作者
王晓春
张洪
李娟
WANG Xiaochun;ZHANG Hong;LI Juan(School of Environmental Science and Engineering,SUST,Suzhou 215009,China;AECC Commercial Aircraft Engine Co.,Ltd.,Shanghai 200241,China)
出处
《苏州科技大学学报（自然科学版）》
CAS
2019年第4期55-59,共5页
Journal of Suzhou University of Science and Technology（Natural Science Edition）
基金
江苏省自然科学基金青年基金资助项目(BK20170382)
关键词
旋转
间隙高度
数值模拟
换热
边界层
rotation
clearance height
numerical simulation
heat transfer
boundary layer
