Authors: Gang Li YanJi Xu Bin Lin JunQiang Zhu ChaoQun Nie HongWei Ma ZhaoFeng Wang
Publish Date: 2009/12/18
Volume: 52, Issue: 12, Pages: 3715-
Abstract
Three dielectric barrier discharge plasma actuators were mounted at the positions of 20 40 and 60 of chord length on the endwall in a compressor cascade The downstream flow field of the cascade has been measured with a mini fivehole pressure probe with and without the plasma actuation The measured results show that the plasma actuation most effectively reduces total pressure loss and flow blockage when the actuators are operated simultaneously As each of the actuators is operated independently the actuator at the position of 20 of chord length most effectively reduces flow blockage and the actuator at the position of 60 of chord length fairly reduces total pressure loss However negative pressure loss reduction occurs with the plasma actuator at the position of 40 of chord length In brief the plasma actuation placed on the endwall in the cascade apparently influences the endwall secondary flow and the optimal locations and strength of actuation are critical for the control of endwall secondary flow in a compressor cascade with the plasma actuators
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