蒸気タービン反動段落の流力特性の研究 : 単段の流力特性

概要

論文の詳細を見る
The aerodynamic characteristics of reaction stages of a large steam turbine have been studied for the basis of performance improvement. For the first step, the characteristics of a single reaction stage with typical reaction blading were studied by two-dimensional low-speed cascade tests and single-stage air turbine tests. The principal results are as follows. (1) Loss distribution in the stationary row is similar to the two-dimensional cascade test results. (2) In the rotating row, profile losses are more than double those of the stationary blades, and secondary losses near base section are fairly larger than the prediction based on the cascade test results. (3) Turning angles of flow through the rotating row near the base diameter are fairly larger than the prediction. (4) Stage efficiency distribution along the blade height shows performance improvement near the base diameters.
社団法人日本機械学会の論文
1991-06-25