In this paper, finite bulk-finite element means is presented for solving convection-diffusionproblem, moreover give out the stability analysis.
将有限体积和有限元方法相结合，解决对流扩散方程问题，并给出了稳定性分析。
2
By using the finite-difference method, a solution is obtained in this paper to the diffusionproblem of the catalytic agent released by the airplane.
本文利用有限差分法对飞机播撒催化剂的扩散问题进行了求解。
3
In this paper, we proposed a diffusion equation for simulating the problem of pollution, and discussed its application to point pollution, especially while instantaneous point pollution happened.