An Analysis of Turbulent Shear Stresses in Leakage Flow Through a Bileaflet Mechanical Prostheses-Reference-Cited by-同舟云学术

An Analysis of Turbulent Shear Stresses in Leakage Flow Through a Bileaflet Mechanical Prostheses

Published:2002-03-29 Issue:2 Volume:124 Page:155-165
ISSN:0148-0731
Container-title:Journal of Biomechanical Engineering
language:en
Short-container-title:

Author:

Travis Brandon R.¹,Leo Hwa L.²,Shah Parina A.²,Frakes David H.³,Yoganathan Ajit P.³

Affiliation:

1. School of Chemical Engineering

2. School of Mechanical Engineering

3. School of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332

Abstract

Abstract In this work, estimates of turbulence were made from pulsatile flow laser Doppler velocimetry measurements using traditional phase averaging and averaging after the removal of cyclic variation. These estimates were compared with estimates obtained from steady leakage flow LDV measurements and an analytical method. The results of these studies indicate that leakage jets which are free and planar in shape may be more unstable than other leakage jets, and that cyclic variation does not cause a gross overestimation of the Reynolds stresses at large distances from the leakage jet orifice.

Publisher

ASME International

Subject

Physiology (medical),Biomedical Engineering

Link

https://asmedigitalcollection.asme.org/biomechanical/article-pdf/124/2/155/6823568/155_1.pdf

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