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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 23
Edited by: M. Papadrakakis and B.H.V. Topping
Paper III.4

Numerical Simulation of the Pulsating Viscous Flow in a Tube with Distensible Moving Wall

Th. Pappou and S. Tsangaris

Laboratory of Aerodynamics, Department of Mechanical Engineering, National Technical University of Athens, Athens, Greece

Full Bibliographic Reference for this paper
Th. Pappou, S. Tsangaris, "Numerical Simulation of the Pulsating Viscous Flow in a Tube with Distensible Moving Wall", in M. Papadrakakis, B.H.V. Topping, (Editors), "Advances in Simulation and Interaction Techniques", Civil-Comp Press, Edinburgh, UK, pp 133-138, 1994. doi:10.4203/ccp.23.3.4
An algorithm for the solution of the incompressible time dependent Navier-Stokes equations is presented here. The above algorithm is based on the extended Flux Vector Splitting method for solving incompressible flow fields. This extension is obtained by the method of artificial compressibility, where an artificial time derivative is added to the continuity equation. The incompressible equations take on thereby an hyperbolic character with pseudo-pressures waves propagating with finite speed. In such type of problems the "informations" inside the field are transmitted along its characteristic curves-In this sense we can use upwind schemes to represent the finite difference scheme of the problem's governing equations-The FVS algorithm for incompressible flows uses up to fourth order upwind scheme for the convective terms and the second order central difference for the viscous terms.

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