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http://dx.doi.org/10.5293/kfma.2015.18.1.044

Rotordynamic Analysis of See-through-type Labyrinth Seal Using 3D CFD  

Ha, Tae Woong (Gachon University Department of Mechanical Engineering)
Publication Information
The KSFM Journal of Fluid Machinery / v.18, no.1, 2015 , pp. 44-50 More about this Journal
Abstract
Labyrinth seals are commonly used in various kinds of turbomachinery to reduce leakage flow. In the present 3D CFD analysis of see-through-type labyrinth air seal, the methodology of determining leakage and rotordynamic coefficients is suggested with the relative coordinate system for steady-state simulation. The leakage flow and rotordynamic forces predicted by using different solvers and turbulent models of FLUENT are compared with the results of the existing bulk-flow analysis code LABYSEAL.FOR and experiment. The present CFD result of direct stiffness(K) shows only improvement in prediction. The results of leakage and rotordynamic coefficients as well as computing time are sensitive against the used solver and turbulent model.
Keywords
Leakage; Rotordynamic coefficient; See-through-type labyrinth seal; Bulk-flow model; CFD; Fluent;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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