Bifurcation of flow and mass transport in a curved blood vessel |
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| Authors: | Tan Wenchang Wei Lan Zhao Yaohua Takashi Masuoka |
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| Affiliation: | Department of Mechanics and Engineering Science, Peking University 100871, China;Department of Mechanical Engineering Science, Kyushu University, Fukuoka 812-8581, Japan;Department of Mechanics and Engineering Science, Peking University 100871, China;Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China;Department of Mechanical Engineering Science, Kyushu University, Fukuoka 812-8581, Japan |
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| Abstract: | A numerical analysis of flow and concentration fields of macromolecules in a, slightly curved blood vessel was carried out. Based on these results, the effect of the bifurcation of a flow on the mass transport in a curved blood vessel was discussed. The macromolecules turned out to be easier to deposit in the inner part of the curved blood vessel near the critical Dean number. Once the Dean number is higher than the critical number, the bifurcation of the flow appears. This bifurcation can prevent macromolecules from concentrating in the inner part of the curved blood vessel. This result is helpful for understanding the possible correlations between the blood dynamics and atherosclerosis. The project supported by National Natural Science Foundation of China (10002003), JSPS Postdoctoral Fellowship for Foreign Researcher and Foundation for University Teachers, the Ministry of Education |
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| Keywords: | curved blood vessel bifurcation of flow steady flow mass transfer |
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