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Effect of mild atherosclerosis on flow resistance in a coronary artery casting of manAn in-vitro flow study was conducted in a mildly atherosclerotic main coronary artery casting of man using sugar-water solutions simulating blood viscosity. Steady flow results indicated substantial increases in pressure drop, and thus flow resistance at the same Reynolds number, above those for Poiseuille flow by 30 to 100 percent in the physiological Reynolds number range from about 100 to 400. Time-averaged pulsatile flow data showed additional 5 percent increases in flow resistance above the steady flow results. Both pulsatile and steady flow data from the casting were found to be nearly equal to those from a straight, axisymmetric model of the casting up to a Reynolds number of about 200, above which the flow resistance of the casting became gradually larger than the corresponding values from the axisymmetric model.
Document ID
19840058461
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Back, L. H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cho, Y. I.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Crawford, D. W.
(Southern California, University Los Angeles, CA, United States)
Cuffel, R. F.
(Walla Walla College College Place, WA, United States)
Date Acquired
August 12, 2013
Publication Date
February 1, 1984
Publication Information
Publication: ASME
Subject Category
Aerospace Medicine
Accession Number
84A41248
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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