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Blood Flow Visualization System Integrating Ultrasonic Measurement and Numerical Simulation |
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Contents
3. Numerical Experiment |
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Computational accuracy of UMI
simulation is evaluated dealing with laminar flow in a straight tube and real
blood flow in an aneurysmal aorta. In the study using real blood vessel
configuration, a numerical solution obtained by applying realistic
computational conditions is first defined as a model of a real blood flow
(standard solution). UMI simulation applying inaccurate boundary condition
but adding feedback signals is investigated concerning the reproduction of
the standard solution. The optimal feedback method has been constructed by
trial and error. Now, we begin to validate the
efficiency of UMI simulation by experiments using in-vitro systems. |
(a) Standard
solution (b) Ordinary
simulation (c) UMI
simulation Comparison of wall shear
distribution obtained by three-dimensional blood flow analysis (UMI
simulation can reproduce wall shear distribution in an aneurysm) |
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Other Contents |
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