Study On Numerical Method Of The Two Dimensional Brine Dynamics

Brine is an important natural resource. With the rapid development of industrial and agricultural production, brine is explored more and more. So there are bound to make accurate forecasts , proper design and utilization issues . This paper is based on the Bieletan section, Qarhan Salt Lake in Qinghai Province . According to Hydrogeology and water chemistry of the Bieletan section, Qarhan Salt Lake in Qinghai Province, Brine dynamic geological conceptual model is established. And on this basis, a brine dynamic mathematical is established.The actual hydrogeological conditions are often complicated. So it is difficult to use analytic method to solve the problem. But numerical method opens up new avenues to study these problems . It is based on percolation theory. According the water balance or mass balance of the entire computational domain, the calculation to reflect the situation of the regional groundwater model is established. There are several ways to solve the prolem of brine dynamic. But the most common methods are finite difference method (FDM) and finite element method (FEM, also known as finite element method, finite element method). The finite difference method and the finite element method are used for solving the mathematical model in this paper. Then the program design of the finite element method is gived.Finally, finite difference method and finite element method of time complexity is analyzed respectively. At the same time ,the two numerical methods are commented in detail.