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Study on Measurement and Numerical Analysis for Fluid Flow past a Circular Cylinder in Rectangular Duct  

김경환 (창원대학교 기계공학과)
윤영환 (창원대학교 기계공학과)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.15, no.12, 2003 , pp. 1095-1102 More about this Journal
Abstract
Flow characteristics of turbulent steady fluid flow past a cylinder in rectangular duct are measured by 5 W laser doppler velocity meter. The fluid flow is also computed by commercial software of STAR-CD for comparison between the measurement and computation. The turbulent models applied in the computations are standard K-epsilon model, RNG K-epsilon model and Chen K-epsilon model. Acurracy of standard K-epsilon model is a little bit better than acurracies of other models even though those models have almost the same order of error compared to measured data. The computations predict satisfactorily the measured velocity profiles at middle section of the circular cylinder before the fluid flow diverges. However, there are some disagreements between them at down stream from the circular cylinder.
Keywords
Rectangular duct; Circular cylinder; Fluid flow; Laser doppler velocity meter; 3-D numerical computation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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