233 座屈・大変形したコラプシブルチューブ内の流れの数値シミュレーション

概要

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It is known that some blood vessel diseases such as arteriosclerosis, aneurysm and so on, are generated locally at a curved part and a branched part of a blood vessel which is deformed in a complicated manner. At these parts, complicated flow phenomena such as reverse flow, flow separation and vortex take place. It is thought that these phenomena are generated by an interaction between the blood flow and the blood vessel. In order to investigate this interaction, collapsible tube was used as in vitro model of the vein and or coronary artery. We made a calculation of the steady flow in highly deformed and buckled collapsible tube by using a finite element method. We compared our calculation results with the experimental one. As a result, both resulta agreed with another.
2002-09-20