The constraint condition for the strain energy density function of incompressible hyperelasticity is proposed.

通过对各种有限元方法分析比较，适当修改了已有应变能密度函式使之更适合值计算。

As in the incompressible flow, the Field and Matter Bicharacteristics of Vortex also have been demonstrated.

如同不可压流动，在可压缩流动中旋涡同样具有场与物质两重特征。