An investigation of pulsatile flow past two cylinders as a model of blood flow in an artificial lung
Journal
International Journal of Heat and Mass Transfer
Journal Volume
54
Journal Issue
15-16
Pages
3191-3200
Date Issued
2011
Author(s)
Abstract
Pulsatile flow across two circular cylinders with different geometric arrangements is studied experimentally using the particle image velocimetry method and numerically using the finite element method. This investigation is motivated the need to optimize gas transfer and fluid mechanical impedance for a total artificial lung, in which the right heart pumps blood across a bundle of hollow microfibers. Vortex formation was found to occur at lower Reynolds numbers in pulsatile flow than in steady flow, and the vortex structure depends strongly on the geometric arrangement of the cylinders and on the Reynolds and Stokes numbers.
Type
journal article