Skip to main content Accessibility help
×
×
Home

Velocity and pressure distributions in the aortic valve

  • B. J. Bellhouse (a1)
Abstract

The distribution of pressure in normal and stenosed aortic valves is investigated experimentally with a rigid-walled model placed in a pulsatile water-tunnel, and the experiments are complemented by a one-dimensional solution of the unsteady inviscid-flow equations. In the normal valve, convectively fed vortices are formed in the aortic sinuses; the vortices aid cusp positioning and the prevention of jet formation during valve closure. Aortic valve stenosis is shown to prevent the generation of vortices, causing the formation of a turbulent jet, with reduction of the pressure difference between the inlets (ostia) of the coronary arteries and the ventricle. This pressure difference is calculated for man resting and exercising, and for various degrees of stenosis.

Copyright
References
Hide All
Bellhouse, B. J. & Bellhouse, F. H. 1968 Nature, Lond. 217, 86.
Bellhouse, B. J., Bellhouse, F. H. & Reid, K. G. 1968 Nature, Lond. 219, 1059.
Bellhouse, B. J. & Talbot, L. 1969 J. Fluid Mech. 35, 721.
Gregg, D. E. 1963 Circulation, 27, 1128.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Fluid Mechanics
  • ISSN: 0022-1120
  • EISSN: 1469-7645
  • URL: /core/journals/journal-of-fluid-mechanics
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×
MathJax

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed