A New Unsteady Flow Control Technology of Centrifugal Compressor Based on Negative Circulation Concept
Shuli Hong,
Yuxuan Yang,
Weiyu Lu
et al.
Abstract:The tip leakage vortex (TLV) induced by the tip clearance flow has a significant impact on the performance of centrifugal compressors, causing impeller flow losses and reducing the stall margin. To solve this problem, an unsteady flow control technology called the NCFC method is proposed based on the concept of negative circulation control, realized by a vortex generator placed in a tube connected with the shroud through a hole. The approach is derived from a theoretical study of the compressor TLV by introduc… Show more
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