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An Experimental Study on Turbulent Flow in 90 Degree Bend by using PIV Techiqure  

장태현 (경남대학교 기계자동화공학부)
이해수 (경남대학교 대학원 기계공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.27, no.5, 2003 , pp. 648-656 More about this Journal
Abstract
An experimental research was performed to study turbulent flow characteristic in a $90^{\circ}$ circular bend by using the PIV(Particle Image Velocimetry) method, this study found the time-mean velocity distribution, time-mean turbulent intensity with turbulent flow for Re = 10,000, 15,000, 20,000, and 25,000 along the test bend. It was found that the highest streamwise velocity of turbulent flow occurs near y/D = 0.5 and the flow moved to y/D =0.15. The peak turbulence intensity shifted toward the concave wall from $\theta= 45 and as \theta$ increased. the intensity decayed along the test tube.
Keywords
turbulent intensity; streamwise velocity; Particle image velocimetry; concave well; convex wall;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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