K-ε turbulence modelling of submerged hydraulic jump using boundary-fitted coordinates

摘要

The internal characteristics of the mean flow of submerged hydraulic jump include- ing the mean water surface profile are computed by a two-dimensional k-ε turbu- lence model using a finite volume method. The equations of motion and the transport Equations are solved in a transformed rec- Tangular domain using boundary-fitted Coordinates. Computation is carried out for different Froude numbers and submer- Gence. The SIMPLE algorithm system is Adopted for the computation. Numerical Predictions are presented and compared With the numerical and experimental Results of Long et al.