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http://dx.doi.org/10.3795/KSME-B.2007.31.9.799

Turbulent Mass Transfer Around a Rotating Stepped Cylinder - Flow-Induced Corrosion -  

Yoon, Dong-Hyeog (인하대학교 대학원)
Yang, Kyung-Soo (인하대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.31, no.9, 2007 , pp. 799-806 More about this Journal
Abstract
Direct Numerical Simulation was carried out to predict mass transfer in turbulent flow around a rotating stepped cylinder. This investigation is a follow-up study of DNS of turbulent flow in Nesic et al. [Corrosion, Vol. 56, No. 10, pp. 1005 - 1014] The original motivation of this work stemmed from the efforts to design a simple device which can generate flows of high turbulence intensity at low cost for corrosion researchers. Two cases were considered; Sc=1 and 10 both at Re=335. Here, Sc and Re stand for Schmidt number and Reynolds number, respectively, based on the step height and the surface speed of the cylinder upstream of the step. Main focus was placed on the correlation between turbulence and mass transfer. The spatio-temporal evolution of concentration field is discussed. The numerical results are qualitatively compared with those of the experiment conducted with a similar flow configuration.
Keywords
Direct Numerical Simulation; Turbulent Mass Transfer; Corrosion; Erosion;
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Times Cited By KSCI : 1  (Citation Analysis)
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