TY - GEN
T1 - Evaluation of Hemodynamics Parameters in Carotid Bifurcation System using Numerical Simulation
AU - Abhilash, H. N.
AU - Khader, S. M.Abdul
AU - Pai, Raghuvir
AU - Kumar, Nitesh
AU - Zuber, Mohammad
AU - Corda, John
AU - Tamagawa, Masaaki
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2023
Y1 - 2023
N2 - Hemodynamics plays a major role in the development of numerous diseases and disorders, including atherosclerosis and stroke. Hemodynamic forces must be adequately mapped to precisely predict and avoid various illnesses and disorders. Blood is a complicated biological fluid that contains constituents, such as erythrocytes that cause it to behave in a non-Newtonian manner. This component is usually overlooked while studying carotid blood flow, and blood is modeled as a Newtonian fluid with constant viscosity. In the present study comparison of hemodynamics in carotid artery for Newtonian viscosity model and non-Newtonian Carreau-Yasuda (CY) viscosity model is done. Computational fluid dynamics analysis is carried out for four patient-specific healthy carotid artery models. The geometry of the carotid artery is obtained from a CT scan and a 3D model is generated using MIMICS. Blood enters the carotid artery through a common carotid artery (CCA) and splits into two arteries named internal carotid artery (ICA) and external carotid artery (ECA). The pulsatile velocity boundary condition is considered at CCA, and the pulsatile pressure boundary condition is considered for both ICA and ECA. The results obtained for both Newtonian and Carreau Yasuda's viscosity models are studied and compared. Wall shear stress is calculated and when compared, results obtained from the Newtonian viscosity model overestimates WSS in certain regions like CCA, ICA, and ECA.
AB - Hemodynamics plays a major role in the development of numerous diseases and disorders, including atherosclerosis and stroke. Hemodynamic forces must be adequately mapped to precisely predict and avoid various illnesses and disorders. Blood is a complicated biological fluid that contains constituents, such as erythrocytes that cause it to behave in a non-Newtonian manner. This component is usually overlooked while studying carotid blood flow, and blood is modeled as a Newtonian fluid with constant viscosity. In the present study comparison of hemodynamics in carotid artery for Newtonian viscosity model and non-Newtonian Carreau-Yasuda (CY) viscosity model is done. Computational fluid dynamics analysis is carried out for four patient-specific healthy carotid artery models. The geometry of the carotid artery is obtained from a CT scan and a 3D model is generated using MIMICS. Blood enters the carotid artery through a common carotid artery (CCA) and splits into two arteries named internal carotid artery (ICA) and external carotid artery (ECA). The pulsatile velocity boundary condition is considered at CCA, and the pulsatile pressure boundary condition is considered for both ICA and ECA. The results obtained for both Newtonian and Carreau Yasuda's viscosity models are studied and compared. Wall shear stress is calculated and when compared, results obtained from the Newtonian viscosity model overestimates WSS in certain regions like CCA, ICA, and ECA.
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U2 - 10.1007/978-981-19-6032-1_12
DO - 10.1007/978-981-19-6032-1_12
M3 - Conference contribution
AN - SCOPUS:85144219451
SN - 9789811960314
T3 - Lecture Notes in Mechanical Engineering
SP - 149
EP - 161
BT - Applications of Computation in Mechanical Engineering - Select Proceedings of 3rd International Conference on Computing in Mechanical Engineering ICCME 2021
A2 - Vučinić, Dean
A2 - Chandran, Vidya
A2 - Mahbub, Alam Md.
A2 - Sobhan, C. B.
PB - Springer Science and Business Media Deutschland GmbH
T2 - 3rd International Conference on Computing in Mechanical Engineering, ICCME 2021
Y2 - 22 September 2021 through 24 September 2021
ER -