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Numerical simulation of flow through biofluid devicesThe results of a numerical simulation of flow through an artificial heart and through an artificial tilting-disk heart valve are presented. The simulation involves solving the incompressible Navier-Stokes equations; the solution process is described. The details and difficulties of modeling these particular geometries are discussed. The artificial heart geometry uses a single moving grid, and the valve computation uses an overlaid-grid approach with one moving grid and one stationary grid. The equations must be solved iteratively for each discrete time step of the computations, requiring a significant amount of computing time. It is particularly difficult to analyze and present the fluid physics represented by these calculations because of the time-varying nature of the flow, and because the flows are internal. Three-dimensional graphics and scientific visualization techniques have become instrumental in solving these problems.
Document ID
19900053441
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rogers, Stuart E.
(NASA Ames Research Center Moffett Field, CA, United States)
Kwak, Dochan
(NASA Ames Research Center Moffett Field, CA, United States)
Kiris, Cetin
(NASA Ames Research Center Moffett Field, CA, United States)
Chang, I-Dee
(Stanford University CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Publication Information
Publication: International Journal of Supercomputer Applications
Volume: 4
ISSN: 0890-2720
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
90A40496
Distribution Limits
Public
Copyright
Other

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