UNIVERSAL VELOCITY DISTRIBUTION FOR SMOOTH AND ROUGH OPEN CHANNEL FLOWS

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PU J.H.

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Journal Paper

Paper Information

Journal: JOURNAL OF APPLIED FLUID MECHANICS (JAFM) Year:2013 | Volume:6 | Issue:3 Page(s): 413-423

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Information Journal Paper

Title

UNIVERSAL VELOCITY DISTRIBUTION FOR SMOOTH AND ROUGH OPEN CHANNEL FLOWS

Author(s)

PU J.H. | Issue Writer Certificate

Keywords

UNIVERSAL VELOCITY PROFILE

SECONDARY CURRENT

VELOCITY DIP

SMOOTH BED FLOW

ROUGH BED FLOW

OPEN CHANNEL FLOWS

Abstract

The Prandtl second kind of SECONDARY CURRENT occurs in any narrow channel flow causing VELOCITY DIP in the flow velocity distribution by introducing the anisotropic turbulence into the flow. Here, a study was conducted to explain the occurrence of the SECONDARY CURRENT in the outer region of flow velocity distribution using a universal expression.Started from the basic Navier-Stokes equation, the velocity profile derivation was accomplished in a universal way for both smooth and rough OPEN CHANNEL FLOWS. However, the outcome of the derived theoretical equation shows that the smooth and ROUGH BED FLOWs give different boundary conditions due to the different formation of log law for smooth and rough bed cases in the inner region of velocity distribution. Detailed comparison with a wide range of different measurement results from literatures (from smooth, rough and field measured data) evidences the capability of the proposed law to represent flow under all bed roughness conditions.

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APA: Copy

PU, J.H.. (2013). UNIVERSAL VELOCITY DISTRIBUTION FOR SMOOTH AND ROUGH OPEN CHANNEL FLOWS. JOURNAL OF APPLIED FLUID MECHANICS (JAFM), 6(3), 413-423. SID. https://sid.ir/paper/307400/en

Vancouver: Copy

PU J.H.. UNIVERSAL VELOCITY DISTRIBUTION FOR SMOOTH AND ROUGH OPEN CHANNEL FLOWS. JOURNAL OF APPLIED FLUID MECHANICS (JAFM)[Internet]. 2013;6(3):413-423. Available from: https://sid.ir/paper/307400/en

IEEE: Copy

J.H. PU, “UNIVERSAL VELOCITY DISTRIBUTION FOR SMOOTH AND ROUGH OPEN CHANNEL FLOWS,” JOURNAL OF APPLIED FLUID MECHANICS (JAFM), vol. 6, no. 3, pp. 413–423, 2013, [Online]. Available: https://sid.ir/paper/307400/en

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