Effects of Condensing Flow on an Oblique Shok Wave in a Supersonic Nozzle

概要

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When condensation occurs in a blade passage in a steam turbine, it affects an oblique shock wave originating from the trailing edge of the blade. In the present study, a condensing flow was produced by an expansion of moist air in a supersonic circular nozzle, and following insertion of a wedge-type shock generator into the supersonic parts of the nozzle, the effects of condensation on an oblique shock wave were investigated experimentally. The position of the oblique shock wave relative to the condensation zone and the change of shape of the oblique shock wave due to condensation are discussed. Furthermore, the loads working on the nozzle wall are obtained from the measurement of pressure distribution, and the effect of condensation on the load is discussed.
一般社団法人日本機械学会の論文
1989-08-15