Pulsatile Blood Flow Effects on Temperature Distribution and Heat Transfer in Rigid Vessels

[+] Author and Article Information
Oana I. Craciunescu

Department of Radiation Oncology, Duke University Medical Center, Box 3455, Durham, NC 27710

Scott T. Clegg

Cerprobe Corporation, Gilbert, AZ 85233

J Biomech Eng 123(5), 500-505 (May 16, 2001) (6 pages) doi:10.1115/1.1392318 History: Received September 03, 1998; Revised May 16, 2001
Copyright © 2001 by ASME
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Temperature histories at points b and c in the computational mesh (see Fig. 2) for Womersley numbers corresponding to 60, 90, and 120 beats/min.: (a) aorta case (Re* =1667, α=7.25, 8.75, and 10.25) and large vessels (Re* =120, α=2, 3, and 4) for the center lamina point at the exit; (b) aorta case for the point near the wall (point b,r=0.9); (c) large vessels for the point near the wall (point b,r=0.9); (d) terminal arteries (Re* =20, α=0.6, 0.7, and 0.8) and arterioles (Re* =0.02, α=0.017), for both points b and c (r=0,r=0.9, respectively), “x” marks
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Numerical temperature profiles along the radius at the exit cross section a-c (Fig. 2) for: (a) aorta; (b) large vessels; (c) terminal arteries and, with “x” marks, arterioles (Re* =0.08, α=0.017)
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Computational mesh of elements used to solve the system of Eqs. (123). The specified points on the mesh represent points where computational results are plotted. The mesh is not drawn to scale.
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Two-dimensional axisymmetric model for the temperature distribution in pulsating blood flow




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