Parameter control are used to adjust grid quality in temperature analogy method.Movement of boundary is considered as temperature boundary condition.Energy equation or heat conduction equation is solved to get temperature distribution.In temperature analogy method,node's temperature is regarded as node's movement.By using different thermal conductivity and source term,different temperature distributions/node's movements are obtained to meet requirements.It shows that the method solves effectively dynamic grid puzzle in fluid-solid coupling.

A mixed unstructured mesh generation method is proposed for complicated computational domains.Delaunay triangulation is applied based on initial meshes generated by frontal approach.It indicates that the mixed method shows good geometrical features and high efficiency.Characteristic based split scheme is applied to flows around a square cylinder in a channel with unstructured meshes generated by mixed method.

By using Monte Carlo Method, the characteristics of bistable dynamics system under the influence of periode and noise force are analyzed. The period non-stationary probability and the joint probability distribution for the system are acquired. Some topological relations among them and the force field and potential, the hole near the saddle point and force zero-point, and the "time bifurcation" are found. The jump characteristic and the signal intensity changing with parameter arealso discussed.

The flexibility of the F.E.M has been used to study the flow in a very complex flow region, which includes pipe, obstacle and half infinite space. In order to minimize the number of elements in the infinite domain, similar elements, are settled in it and have been canceled but one in advance of calculation. The whole method is effective and the calculated result is reasonable.

The key problem in heating and instability studies in plasma physics is to obtain dispersive equation and its solution. This paper presents the general dispersive equation and corresponding procedure, when electromagnetic wave nearly poloidally impinges on anisotropic, weakly relativistic Maxwellian plasma with inhomogeneous density in nonuniform magnetic field (such as plasma in TOKAMAK). The double index function Fij, significant in plasma physics, was expanded as single index function F1, and then the values were calculated by means of dispersive function. It was also pointed in the paper that the severe error involved in the calculation of Fij from F11 successively prevents the-technique of recurrence relation from being put into practice.