Propagation of nonlinear pressure wave in artery vessels / 医用生物力学

ABSTRACT

Objective The mechanical model of nonlinear blood flow in large blood vessels is developed and the propagation of nonlinear pressure wave is studied.Methods Taking the effect of large deformation,nonlinear equation of motion was established in the current configuration in terms of the constitutive equations proposed by Demiray for soft biological tissues.Resuit Employing the reductive perturbation method the KdV equation is derived from the nonlinear partial equations governing the motion of coupled system.Conclusions It is shown from this study that the system may have an accurate periodic wave solution or solitary wave solution under certain conditions.