Calculation of Flow with a Spur-Dike considering Reynolds Stress

In numerical analyses (two-dimensional models) of flows and river-bed fluctions (variation) around spur-dikes, reproducibility is poor when the transverse shear is not accurate. To investigate the mechanism of flows induced by spur-dikes, measurement was made with laser current meters measuring two components simultaneously, and this allowed an adequate determination of the conditions of the flow around spur-dikes. The application of Plandtl's transport theory in estimating the Reynolds stress was evaluated with the experimental values. Also whether Plandtl's transport theory in estimating the Reynolds stress was evalu ated with the experimental values, and applied to the numerical analyses around structures with steady and unsteady models.