SECONDARY FLOW LOSSES IN PLANE TURBINE CASCADES AND ITS MATHEMATICAL PREDICTION MODEL

Li Caixiu; Ni Zhong

Volume 2 Issue 3

Jul. 1987

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Li Caixiu, Ni Zhong. SECONDARY FLOW LOSSES IN PLANE TURBINE CASCADES AND ITS MATHEMATICAL PREDICTION MODEL[J]. Journal of Aerospace Power, 1987, 2(3): 230-234,282.

Citation:

Li Caixiu, Ni Zhong. SECONDARY FLOW LOSSES IN PLANE TURBINE CASCADES AND ITS MATHEMATICAL PREDICTION MODEL[J]. Journal of Aerospace Power, 1987, 2(3): 230-234,282.

Li Caixiu, Ni Zhong. SECONDARY FLOW LOSSES IN PLANE TURBINE CASCADES AND ITS MATHEMATICAL PREDICTION MODEL[J]. Journal of Aerospace Power, 1987, 2(3): 230-234,282.

Citation:

Li Caixiu, Ni Zhong. SECONDARY FLOW LOSSES IN PLANE TURBINE CASCADES AND ITS MATHEMATICAL PREDICTION MODEL[J]. Journal of Aerospace Power, 1987, 2(3): 230-234,282.

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SECONDARY FLOW LOSSES IN PLANE TURBINE CASCADES AND ITS MATHEMATICAL PREDICTION MODEL

Li Caixiu,
Ni Zhong

Shanghai power Equipment Research Institute

Received Date: 1986-08-01
Publish Date: 1987-07-28

Abstract

Abstract

The phenomenon and cause of the secondary flow in plane turbine cascades are discussed and a mathematical prediction model of losses is presented. It is stressed that the secondary flow in turbine cascades is a dynamic but not a kinematiceffect and thus should be studied from the viewpoint of dynamics. Based on the results of plane cascade tests, a model that predicts the secondary flow loss distribution is suggested. The effect of inlet boundary layer has been consideredin the model. Precision obtained from the proposed model conforms more satisfactorily with experimental results than those given in previous literatures.