Wedge Impact Simulation into the Non-Newtonian Herschel-Bulkley Dilatant Fluid with RANS Numerical Method

In the interaction of rigid body and fluid problem different methods and techniques are used for simulating the impact of a moving object in the fluids. So, wedge impact model is investigated according to the Dilatant fluid characteristics and the effect of these features on moving wedge using flow-3D software. Comparison of present analysis and observational results showed that this model with 0.5 percent mean error and with R2=0.999 has good performance in simulating this kind of fluid. Also Studying the effect of fluid characteristics changes on moving wedge and velocity and pressure distribution in fluid indicated that variety of density has maximum effect on the wedge velocity change, so that with 2.8 times increase in density, velocity of wedge decreases about 16 percent. Also, it was found that with decreasing in collision distance between two wedges, wedges penetration velocity into fluid decreases up to 8 percent.