Popis anglicky
The purpose of the proposed research is to enable the continuation in the development of new algorithms and numerical methods (FEM, FDM, domain decomposition) for solution of hydroelastic interaction of a compliant wall of a channel with flowing viscousfluid. The developed numerical methods of a more general usage will be tested and applied in biomechanics of vascular circulating system and in artificial blood circulation supporting systems, where the nonstationary flow in a viscoelastic tube is essential to consider. The theoretical investigation will be supported by experiments. The necessary data for computation of the flow field in the compliant channel and the fluid-friction losses from the nonstationary Navier-Stokes equations will be obtained by measurement of the nonstationary pressures and the flow velocity profiles in viscoelastic tubes by using the PIV and LDA techniques. The boundary condition for the blood flow field on the wall of biomedical materials will be experimentally verified, a