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《Pipeline Technique and Equipment》 2009-06
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Experiment Study on V-groove Drag Reduction

LI En-tian,ZHAO Shu-hua,WANG Shu-li,ZHOU Shi-dong,SHI Xiao-jun(Jiangsu Key Laboratory of Oil and Gas Storage and Transportation Technology,Jiangsu Polytechnic University,Changzhou 213164,China)  
In order to research the resistance characteristic of different shapes of grooves,PIV technology is used to meansure the turbulent boundary layer of a V-shaped and smooth plate at a zero pressure gradient and compare the results and inspect the average velocity distribution and the wall shear stress at the same location and the same flow rate.The local drag coeeficients of both the grooves and the smooth plate are calculated by using the momentum loss method.The results indicate that grooves can increase the thickenss of a viscous sub-layers but decrease the wall shear stress,showing an obvious effect of drag reduction.
【Fund】: 江苏省科技厅资助项目(BS2005020);; 江苏省油气储运技术重点实验室资助项目(cy0601)
【CateGory Index】: TV134
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