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http://dx.doi.org/10.3795/KSME-B.2008.32.6.471

Detached Eddy Simulation of a Developing Turbulent Flow in a 270° Curved Duct  

Seo, Jeong-Sik (고려대학교 대학원)
Shin, Jong-Keun (한중대학교 자동차공학과)
Choi, Young-Don (고려대학교 기계공학과)
Lee, Joo-Cheol (태성앤스트㈜)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.32, no.6, 2008 , pp. 471-478 More about this Journal
Abstract
Detached Eddy Simulation (DES) is performed for developing turbulent flow of the $270^{\circ}$ curved duct at a Reynolds number of 56,690. The curvature ratio on the basis of a centric radius $R_c$ and a duct height H is 3.357. Turbulence models adopted are k-$\omega$ model for Reynolds Average Navier-Stokes (RANS) equation Simulation and Shear Stress Transport (SST) model for DES. DES is used as the hybrid computation technique combined with RANS-SST and Large Eddy Simulation (LES). Predicted results are compared with measured results including the distributions of Reynolds stresses and the flow characteristics on the symmetric plane of curved duct are presented. Judging from the comparison between the predicted and the measured results, the DES approach is applicable to calculate the developing turbulent flow in a $270^{\circ}$ curved duct.
Keywords
DES(Detached Eddy Simulation); Curved Duct; Turbulent Flow; RANS(Reynolds Average Navier Stokes Equation Simulation);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
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