Моделирование рабочего процесса в кольцевом канале на испытательном стенде центробежного компрессора, предназначенного для малоразмерной газотурбинной установки

Abstract

At the V. P. Lukachyov Department of Aircraft Engine Theory of Samara University, an experimental test rig for a centrifugal compressor is under development. The rig includes an outlet volute whose function is to direct the air leaving the centrifugal compressor into the discharge pipeline. The flow at the compressor exit retains residual swirl, and structural struts are present in the duct; together these factors alter the flow angle at the duct outlet (i.e., at the inlet to the volute) and therefore influence the volute geometry. The present study examines the flow process in the annular duct linking the centrifugal compressor with the volute and determines the flow parameters at its exit that are required for the subsequent design of an optimally sized volute.