A Numerical Simulation of Hybrid Finite Analytic Method for Groundwater Pollution

With the development of social, economic, groundwater pollution is becoming a concern in our country. In view of the defiency of traditional finite difference method, in this paper, a proposed hybrid finite analytic method was adopted to solve the problem about groundwater pollution. Testing with some examples and contrasting with finite difference method, we can get the conclusion that the hybrid finite analytic method is available.

Numerical Simulation of Liquid-Solid Two-Phase Flows on Internal and Outside Flow Field in High Pressure Abrasive Water Jet Cutting Nozzle

Based on premixed high pressure water jet cutting, five kinds of nozzle models were established, and the control equations and closed equtions of liquid-solid two-phase were given. The inside-outside liquid-solid two-phase flow characteristics of the nozzles were simulated by Hybrid Finite Analytic Method (HFAM). The results indicate that the taper-beeline nozzle has better convergence characteristic, good hydraulic characteristic and lower radical velocity, thus it is more suitable for premixed high pressure water jet cutting nozzle.