Abstract
Unsteady pulsed suction (UPS) as a new unsteady flow control technology was proposed and used in a highly loaded compressor cascade to control flow separation. Comparing with steady constant suction (SCS), UPS shows great advantages in reducing the total pressure loss coefficient in a given excitation frequency range with the time-averaged suction flow rate m s =0.4% and m s =0.53%, and there is an optimal excitation frequency respectively, resulting in a decrease in total pressure loss of 9.4% and 14.2% respectively. The effect of UPS on control flow separation is better than that of SCS with the same time-averaged suction flow rate, and when the time-averaged suction flow rate m s = 0.29%, the loss for UPS is reduced by 11.6% compared to SCS.
| Translated title of the contribution | Influences of steady constant suction and unsteady pulsed suction on performance of highly loaded compressor cascade |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 92-98 |
| Number of pages | 7 |
| Journal | Dalian Haishi Daxue Xuebao/Journal of Dalian Maritime University |
| Volume | 44 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Nov 2018 |
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