Validation of numerical models for flow simulation in labyrinth seals

[摘要] CFD results were compared with the results of experiments for the flow through the labyrinth seal. RANS turbulence models (k-epsilon, k-omega, SST and SST-SAS) were selected for the study. Steady and transient results were analyzed. ANSYS CFX was used for numerical computation. The analysis included flow through sealing section with the honeycomb land. Leakage flows and velocity profiles in the seal were compared. In addition to the comparison of computational models, the divergence of modeling and experimental results has been determined. Tips for modeling these problems were formulated.

[发布机构] Silesian University of Technology, Institute of Power Engineering and Turbomachinery, Gliwice Konarskiego Street 18, Poland^1

[效力级别] 力学 [学科分类] 力学，机械学

[关键词] Computational model;Labyrinth Seal;Leakage flow;Numerical computations;RANS turbulence models;Steady and transient;Validation of numerical model;Velocity profiles