Turbulence Prediction in Open Channel Flow
by Ruh-Ming Li, M.ASCE, (Assoc. Prof., Dept. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo.), Daryl B. Simons, F.ASCE, (Prof., Dept. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo.), and James D. Schall, (Research Assoc., Dept. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo.)
Journal of the Hydraulics Division, Vol. 106, No. 4, April 1980, pp. 575-587
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| Document type: |
Journal Paper |
| Discussion: |
by Darrel M. Temple (See full record)
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| Discussion: |
by Rema Devi and et al. (See full record)
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| Abstract: |
An analytical model for predicting turbulent intensities of velocity for the streamwise and cross-streamwise directions in open channel flow was derived. Due to the random nature of turbulence, a probabilistic approach to the problem is required. A Gaussian distribution was assumed to describe the turbulent fluctuating velocities. From this basic condition, a three-parameter model was derived to predict the root-mean-square (rms) values of turbulence for the vertical and longitudinal directions. Values calculated from the mathematical model were compared to experimentally obtained data using hot-film anemometry techniques, and excellent agreement existed for both components of rms. |
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