FLOW OF OLDROYD-B FLUID IN ROTATING CURVED SQUARE DUCTS  被引量:1

FLOW OF OLDROYD-B FLUID IN ROTATING CURVED SQUARE DUCTS

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作  者:ZHANG Ming-kan SHEN Xin-rong MA Jian-feng ZHANG Ben-zhao 

机构地区:[1]Institute of Fluid Engineering, Zhejiang University, Hangzhou 310027, China

出  处:《Journal of Hydrodynamics》2007年第1期36-41,共6页水动力学研究与进展B辑(英文版)

基  金:Project supported by the National Natural Science Foundation of China (Grant No. 10272096).

摘  要:The fully developed Oldroyd-B fluid flow through rotating square ducts was numerically studied. The effects of the rotation on secondary flow, axial velocity, and axial normal stress were examined in detail. The results indicated that all of the secondary flow, the axial flow, and the axial normal stress were evidently affected by the rotation. The Taylor-Proudman phenomenon could be observed in the flow. For the secondary flow, the four vortices structure and the six vortices structure were described. Recent studies also showed the effects of rotation on the axial normal stress.The fully developed Oldroyd-B fluid flow through rotating square ducts was numerically studied. The effects of the rotation on secondary flow, axial velocity, and axial normal stress were examined in detail. The results indicated that all of the secondary flow, the axial flow, and the axial normal stress were evidently affected by the rotation. The Taylor-Proudman phenomenon could be observed in the flow. For the secondary flow, the four vortices structure and the six vortices structure were described. Recent studies also showed the effects of rotation on the axial normal stress.

关 键 词:curved ducts Oldroyd-B fluid ROTATING axialnormal stress 

分 类 号:TV134[水利工程—水力学及河流动力学]

 

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