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http://dx.doi.org/10.5139/JKSAS.2003.31.8.001

Numerical Simulation of Square Cylinder Near a Wall with the ε -SST Turbulence Model  

Lee,Bo-Seong (서울대학교 기계항공공학부 대학원)
Kim,Tae-Yun (서울대학교 기계항공공학부 대학원)
Park,Yeong-Hui (I2 Technology)
Lee,Dong-Ho (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.8, 2003 , pp. 1-7 More about this Journal
Abstract
The numerical simulation of flow-filed around a square cylinder near a wall with $\varepsilon$-SST turbulence model is carried out in this study. The newly suggested $\varepsilon$-SST turbulence model that modifies the original SST turbulence model is proved to yield more accurate results than the other 2-equation turbulence models in large separation region around a bluff body. Therefore, $\varepsilon$-SST turbulence model can be effectively applied for predicting the flow-fields with large separation. And it is found that vortex shedding is suppressed below the critical gap height, the Strouhal number is affected by the gap height and the wall boundary layer thickness.
Keywords
Turbulence model; Square cylinder; Separated shear layer; Vortex shedding; Strouhal number; Turbulent boundary layer;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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