Abstract:A low specific speed centrifugal compressor with leading/trailing edge combined sweep blades is proposed. The performance and internal flow field characteristics are analyzed in detail by numerical simulations, and a bench test is carried out. It is shown that by using the combined leading/trailing edge swept blade, the stage pressure ratio of the centrifugal compressor is improved under all operating conditions, and the maximum increase can reach 6.5%. The efficiency can be markedly improved at high flow rate… Show more
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