Application of Roe Scheme in Numerical Solution of Euler Equation for Water Droplets
At present,the Euler method is widely used to solve the governing equation of water droplet movement to simulate droplet impingement characteristics on icing surface.The water droplet Euler equa-tion is similar to the air Euler equation without pressure term,but most of the spatial discretization schemes that have been applied to the air Euler equation cannot be directly applied to the water droplet Euler equation,and some researchers have encountered singularity problem when applying the classical Roe scheme to the water droplet Euler equation.Through the formal transformation of water droplet Euler equation,the effectiveness of the transformation method is verified based on the central scheme,and then the Roe scheme is applied and the second-order accuracy of the water droplet Euler equation is solved by combining linear reconstruction and limiter function.The results of NACA23012 airfoil were compared with FENSAP-ICE software,and the distribution of water droplet collection coefficient was basically the same.
water droplet impingement characteristicswater droplet trajectoryEuler methodRoe schemeicing software
万方数据
维普
