Abstract

Numerical study of turbulent flow in a open channel with side wall has been investigated by using direct numerical simulation. In the computation, staggered grid system is employed and consistent scheme is applied to the non-linear term. Time-averaged results are compared with the spectral data. It was found that the present computations could predict well the characteristic future of open channel flow. The location of maximum streamwise velocity more to the center direction of channel, that is different from those of open channel flow without side wall. The Reynolds number based on wall friction velocity and channel height is set to be 600. The slip wall condition is applied to the free surface. The budged of pressure-strain conditions are shown and the influence of side walls is discussed.

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