平行溝付シールの静および動特性に関する研究

概要

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This paper proposes a method to calculate the static and dynamic characteristics of the parallel-grooved stator/smooth rotor and the smooth stator/parallel-grooved rotor seals used in turbopumps. In this analysis, the calculation domain is divided into three control volumes which are two clearance flows in land parts and groove parts and a groove flow in groove parts. The governing equations for two clearance flows are derived using continuity and momentum equations. These equations are solved numerically by using the perturbation method. The fluid force in each part is determined by integrating the perturbation pressure distributions in the axial and circumferential directions. The total dynamic seal force is determined by summing up the dynamic forces in each part. The calculated results are compared with the experimental results.
一般社団法人日本機械学会の論文
1999-01-25