SEPARATION METHOD OF THE PERIODIC-WAVES F OR VISCOUS-FLUID FLOW IN ELASTIC CONDUITS - NONLINEAR CASE

In this paper a new separation technique is proposed to determine the forward and backward running waves in elastic conduits. This method is based on the knowledge of the wave velocity, which is estimated by ta king into account the non-linear effect introduced by elasticity of th e wall and the normal periodicity of the cardiac cycle. In the separat ion analysis, we lake into account friction as well as non-linear effe cts due to convective acceleration. The results obtained are compared to the classical linear method and to the previous methods.