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TECHNICAL PAPERS

Influence of Connection Geometry and SVC-IVC Flow Rate Ratio on Flow Structures within the Total Cavopulmonary Connection: A Numerical Study

[+] Author and Article Information
Yottana Khunatorn

Department of Mechanical Engineering, University of Colorado, Boulder, CO 80309-0427

Shankar Mahalingam

Department of Mechanical Engineering, University of California, Riverside, CA 92521

Curt G. DeGroff

Cardiovascular Flow Research Laboratory, The Children’s Hospital/University of Colorado Health Sciences Center, Denver, CO 80218

Robin Shandas

Department of Mechanical Engineering, University of Colorado, Boulder, CO 80309-0427Cardiovascular Flow Research Laboratory, The Children’s Hospital/University of Colorado Health Sciences Center, Denver, CO 80218

J Biomech Eng 124(4), 364-377 (Jul 30, 2002) (14 pages) doi:10.1115/1.1487880 History: Received January 01, 2001; Revised April 01, 2002; Online July 30, 2002
Copyright © 2002 by ASME
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References

Figures

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Schematic drawing and grid structure of the TCPC numerical model. The SVC-IVC offset distance and the connection angle indicated are the two main geometrical parameters.
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Stress component transformation due to coordinate rotation
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Velocity profiles and pressure distribution contours of Models 1 and 2 for the different SVC:IVC flow rate ratios. The velocity vectors are indicated by the arrows and pressure (N/m2) by the grayscale contours with scale as included in the figure. (a) SVC:IVC=50:50 (b) SVC:IVC=33:66 (c) SVC:IVC 25:75.
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Velocity profiles and pressure distribution contours of Model 3 and 4 for the different SVC:IVC flow rate ratios. (a) SVC:IVC=50:50 (b) SVC:IVC=33:66 (c) SVC:IVC 25:75.
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The cross sectional velocity profiles and shear distributions for Model 1 at different SVC:IVC flow rate ratios. The velocity vectors are indicated by the arrows and shear stress contours (dynes/cm2) by the grayscale with scale as included in the figure.
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(a) The cross sectional velocity profiles and shear distributions in the RPA for Model 2 at different SVC:IVC flow rate ratios. (b) The cross sectional velocity profiles and shear distributions in the LPA for Model 2 at different SVC:IVC flow rate ratios.
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Cross sectional velocity profiles and shear distributions for Model 3 at different SVC:IVC flow rate ratios
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Cross sectional velocity profiles and shear distributions for Model 4 at different SVC:IVC flow rate ratios

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