Water treatment agent, high salinity , high calcium and magnesium ion and produced polymer have largely lost the viscous modulus of the AP-P4 solution.

The viscosity of blood, the elastic modulus of blood vessel and the radius of tube that influenced the pulse wave propagation were analyzed.

In this computation a fluid-elastic plastic model and a finite difference method of Lagrange coordinate are used The parameters of shock, cavity and waveform are obtained and analysed.