Boundary Shear in Rectangular Ducts and Channels
Publication: Journal of Hydraulic Engineering
Volume 124, Issue 1
Abstract
The development of the equation for the lateral distribution of boundary shear starts from a simplified streamwise vorticity equation which includes only the secondary Reynolds stress terms. Transverse anisotropy is modeled using a universal function. The effect of secondary flow on the boundary shear is incorporated into the model by applying the momentum transfer model. In the light of these analyses, an empirical equation is put forward to describe the lateral boundary shear distribution. The measured data of boundary shear in square ducts are used to quantify some empirical coefficients. The model is then applied to the corner region of rectangular ducts and open channels. With those simplifications and approximations applied to the streamwise vorticity equation, the predictions are found to be good.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 124 • Issue 1 • January 1998
Pages: 86 - 89
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Jan 1, 1998
Published in print: Jan 1998
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