Experimental study and numerical simulation of three dimensional two-phase impinging jet flow using anisotropic turbulence model

Hydrodynamic of a turbulent impinging jet on a flat plate is studied experimentally and numerically. Experiments are conducted for the Reynolds number range of 72000 to 102000 and a fixed jet-to-plate dimensionless distance of H/d=3.5. Based on the experimental setup, a multi-phase numerical model is simulated to predict the flow properties of impinging jets using two turbulent models. Mesh-independency of the numerical model is studied to ensure the preciseness of the results. Numerical and experimental forces on the target plate are compared in order to examine the performance of turbulent models and wall functions. As a result, the force obtained by the Reynolds stress turbulent model alongside with non-equilibrium wall function is in good agreement with the experiment. The correlation equations are obtained for predicting the water thickness over the target plate and impingement force versus Reynolds number. It is also indicated that the maximum shear stress on the target plate is located at radial dimensionless distance of r/d=0.75.