Background: The interaction between the blood and the vessel wall is of great clinical interest in studying cardiovascular diseases, the major causes of death in developed countries.Objective: To understand the effects of incorporating fluid-structure interaction into the simulation of blood flow through an anatomically realistic model of abdominal aorta and renal arteries reconstructed from CT...

A theoretical model is developed to investigate the effect of compliant coatings on radiated sound from low Mach-number turbulent boundary layers over otherwise rigid surfaces. Lighthill’s analogy is employed and the primary noise source is assumed to be from wall-pressure fluctuations. Parametric studies are performed on the behavior of the material properties such as the speed of sound and de...

The effect of compliant walls on the properties of a Helmholtz resonator is examined. The effective stiffness of the resonator is decreased by the wall compliance, while the effective mass is unchanged to leading order. The radiation resistance is also decreased ue to a cancellation between the radiation from the cavity opening and the radiation from the cavity walls. This leads to a reduction ...

The mechanisms of destabilisation the flow through soft-walled channels/tubes are qualitatively different from those in rigid-walled conduits. stability depends on two dimensionless parameters, Reynolds number $(\rho _f V_f h_f/ \mu _f)$ and $\varSigma = (\rho G h_f^{2}/\mu _f^{2})$ , where $\rho _f$ $\mu fluid density viscosity, $h_f$ $V_f$ length velocity scale $G$ is wall elasticity modulus....

This study is concerned with the peristaltic motion of a Maxwell fluid in an asymmetric compliant channel. The channel asymmetry is created because of peristaltic wave trains of different amplitudes and phases on the channel walls. Mathematical model of the governing problem is first presented and then important phenomenon of "mean flow reversal" is examined. The variations of the interesting p...