Taking the field of application as a focal point

three classical dynamic grid methods based on elasticity analogy were analyzed in many ways

such as deformation capability

deformation quality and spatial distribution. Combined with engineering demand

the application strategy for grid deformation was presented. Finally

a improvement was proposed for integrating advantages of classical dynamic grid methods based on elasticity analogy

and then verified through pitch oscillation of NACA 0006 airfoil in hypersonic condition. Results show that

when faced with densified grids

the area modification can be controlled better

but faced with uniform grids

the distance modification is more suitable

so this application strategy can provide a guidance for engineering. Secondly

the improvement is accurate in simulation

its all grid quality parameters exceed 10% than classical method based on distance

whats more

its minimum grid quality parameter is about four times the classical method based on area. In conclusion

the improvement is effective in strengthening the robustness of classical elasticity analogy.