Numerical simulation of pulsatile flows passing through a pipe with sudden expansion
Abstract
Pulsating flows in a circular pipe were numerically investigated in order to obtain a basic understanding of the generating mechanism of PostStenotic Dilatation (PSD) from the fluid dynamic point of view. The vorticity and steamfunction formulation of the NavierStokes equation was solved for a pipe flow with a sudden expansion using the finite difference method. The velocity distribution and the reattachment point were determined. These results showed fairly good agreement with the analytical results, and the reattachment point obtained is coincided with the experimental result.
 Publication:

In its The Proceedings of the Symposium on Mechanics for Space Flight 1989 p 4552 (SEE N9116266 0834
 Pub Date:
 March 1990
 Bibcode:
 1990msf..symp...45I
 Keywords:

 Pipe Flow;
 Pipes (Tubes);
 Unsteady Flow;
 Velocity Distribution;
 Vorticity;
 Arteries;
 Blood Flow;
 Finite Difference Theory;
 NavierStokes Equation;
 Stretching;
 Fluid Mechanics and Heat Transfer