Li, Yutao and Sedeh, Shahab Naghdi and Alizadeh, As'ad and Meqdad, Maytham N. and Hussien Alawadi, Ahmed and Nasajpour-Esfahani, Navid and Toghraie, Davood and Hekmatifar, Maboud (2023) Numerical Simulation of Thermal Behavior of Cerebral Blood Vessels Using Computational Hemodynamic Method. Ain Shams Engineering Journal, 14 (11). p. 102535. ISSN 20904479
![[thumbnail of Research Article]](https://eprints.cihanuniversity.edu.iq/style/images/fileicons/text.png)
Article_ASEJ_27-10-2023.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.
Download (6MB)
Abstract
Nowadays, cardiovascular illnesses are among the leading causes of death in the world. Thus, many studies have been performed to diagnose and prevention of these diseases. Studies show that the computational hemodynamic method (CHD) is a very effective method to control and prevent the progression of this type of disease. In this computational paper, the impression of five non-Newtonian viscosity models (nNVMs) on cerebral blood vessels (CBV) is investigated by CHD. In this simulation, blood flow is supposed steady, laminar, incompressible, and non-Newtonian. The parameters of Nusselt number (Nu), dimensionless temperature (θ), pressure drop (Δp), and dimensionless average wall shear stress (DAWSS) are also investigated by considering the effects of heat generated by the body. Utilizing the FVM and SIMPLE scheme for pressure–velocity coupling is a good approach to investigating CBVs for five different viscosity models. In the results, it is shown that the θ and Δp+ increase with increasing Reynolds number (Re) in the CBVs. By enhancing the Re from 90 to 120 in the Cross viscosity model, the Δp+ changes about 1.391 times. The DAWSS grows by increasing the Re in all viscosity models. This increase in DAWSS leads to an increasing velocity gradient close to the cerebral vessel wall.
Item Type: | Article |
---|---|
Uncontrolled Keywords: | Viscosity model, Thermal effect, Cerebral blood vessel, Non-Newtonian blood flow, Dimensionless pressure, Nusselt number. |
Subjects: | R Medicine > R Medicine (General) T Technology > TA Engineering (General). Civil engineering (General) |
Divisions: | Department of Civil Engineering > Research papers |
Depositing User: | ePrints Depositor |
Date Deposited: | 31 Oct 2024 11:04 |
Last Modified: | 31 Oct 2024 11:04 |
URI: | https://eprints.cihanuniversity.edu.iq/id/eprint/2434 |