Abstract
Hemodynamic is considered very important in order to study and analyze the diseases related to circulation of blood. The blockage of artery has been one of the common diseases related to blood circulation that can efficiently be analyzed using the computational fluid dynamics (CFD) as a tool in order to study non-Newtonian behavior of blood in complex geometry. In the present study, blood flow in the idealized artery with 80% blockage has been analyzed. Blood is considered as two-phase fluid with shear thinning properties. The Quemada viscosity model is used to define the non-Newtonian behavior of blood. Steady-state conditions with plasma as continuous phase and red blood cells (RBCs) as particulate phase are considered for the present simulation. ANSYS Fluent has been used to simulate the two-phase blood flow, and the model is verified with the experimental results and with the data available in open literature. The effect of blockage in the blood flow has been analyzed with increase of RBCs concentration and results were plotted for three different steady-state velocities. It has been noticed that abnormal shear stress and pressure reduction occur due to blockage within artery. Also, the trend of migration of RBCs toward the center of artery has been observed to increase with increase in flow velocity.
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Joisar, K., Bhoraniya, R., Harichandan, A. (2019). Numerical Analysis of Two-Phase Blood Flow in Idealized Artery with Blockage. In: Chandrasekhar, U., Yang, LJ., Gowthaman, S. (eds) Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018). Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-2697-4_29
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DOI: https://doi.org/10.1007/978-981-13-2697-4_29
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