Abstract: 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.

Key words: fluid-solid coupling, dynamic grids, temperature analogy, spring analogy, elasticity approach