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Cheffar L, Benslimane A, Sadaoui D, Benchabane A, Bekkour K. Pulsatile flow of thixotropic blood in artery under external body acceleration. Comput Methods Biomech Biomed Engin 2022; 26:927-940. [PMID: 35852069 DOI: 10.1080/10255842.2022.2098677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This work presents a numerical technique for simulating non-Newtonian blood flow in human's arteries driven by an oscillating pressure gradient. The blood is considered as a thixotropic fluid and its structural properties are considered to obey Moore's thixotropic model as a constitutive equation. The equations of motion are simplified considering the flow laminar, axisymmetric and the fluid incompressible. A numerical solution is presented using finite difference method in order to compute the velocity field and wall shear stress distribution. The numerical results obtained have been validated with the analytical solution available in the literature. Furthermore, the effect of the structural properties, the average of the pressure gradient and the external acceleration on the velocity and wall shear stress distribution is investigated. These results reveal the influence of the different parameters studied on the pipe flow response of the thixotropic fluid.
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Affiliation(s)
- Louiza Cheffar
- Laboratoire de Mécanique, Matériaux et Energétique (L2ME), Faculté de Technologie, Université de Bejaia, Bejaia 06000, Algérie
| | - Abdelhakim Benslimane
- Laboratoire de Mécanique, Matériaux et Energétique (L2ME), Faculté de Technologie, Université de Bejaia, Bejaia 06000, Algérie
| | - Djamel Sadaoui
- Laboratoire de Mécanique, Matériaux et Energétique (L2ME), Faculté de Technologie, Université de Bejaia, Bejaia 06000, Algérie
| | - Adel Benchabane
- Laboratoire de Génie Energétique et Matériaux (LGEM), Faculté des Sciences et de la Technologie, Université Mohamed Khider -Biskra, BP 145, Biskra 07000, Algérie
- ICube Research Institute UMR 7357, CNRS, Université de Strasbourg, 2 Rue Boussingault, Strasbourg 67000, France
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Numerical Solution of Blood Flow and Mass Transport in an Elastic Tube with Multiple Stenoses. BIOMED RESEARCH INTERNATIONAL 2020; 2020:7609562. [PMID: 32090110 PMCID: PMC7013311 DOI: 10.1155/2020/7609562] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/18/2019] [Indexed: 11/17/2022]
Abstract
The simultaneous effect of flexible wall and multiple stenoses on the flow and mass transfer of blood is investigated through numerical computation and simulations. The solution is obtained using the Marker and Cell technique on an axisymmetric model of Newtonian blood flow. The results compare favorably with physical observations where the pulsatile boundary condition and double stenoses result in a higher pressure drop across the stenoses. The streamlines, the iso-concentration lines, the Sherwood number, and the mass concentration variations along the entire wall segment provide a comprehensive analysis of the mass transport characteristics. The double stenoses and pulsatile inlet conditions increase the number of recirculation regions and effect a higher mass transfer rate at the throat, whereby more mass is expected to accumulate and cause further stenosis.
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Zhu Y, Wang F, Deng X. Hemodynamics of cerebral bridging veins connecting the superior sagittal sinus based on numerical simulation. Biomed Eng Online 2018; 17:35. [PMID: 29558949 PMCID: PMC5861626 DOI: 10.1186/s12938-018-0466-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 03/07/2018] [Indexed: 01/23/2023] Open
Abstract
Background The physiological and hemodynamic features of bridging veins involve wall shear stress (WSS) of the cerebral venous system. Based on the data of cadavers and computational fluid dynamics software pack, the hemodynamic physical models of bridging veins (BVs) connecting superior sagittal sinus (SSS) were established. Results A total of 137 BVs formed two clusters along the SSS: anterior group and posterior group. The diameters of the BVs in posterior group were larger than of the anterior group, and the entry angle was smaller. When the diameter of a BV was greater than 1.2 mm, the WSS decreased in the downstream wall of SSS with entry angle less than 105°, and the WSS also decreased in the upstream wall of BVs with entry angle less than 65°. The minimum WSS in BVs was only 63% of that in SSS. Compared with the BVs in anterior group, the minimum WSS in the posterior group was smaller, and the distance from location of the minimum WSS to the dural entrance was longer. Conclusion The cerebral venous thrombosis occurs more easily when the diameter of a BV is greater than 1.2 mm and the entry angle is less than 65°. The embolus maybe form earlier in the upstream wall of BVs in the posterior part of SSS. Electronic supplementary material The online version of this article (10.1186/s12938-018-0466-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Youyu Zhu
- Department of Anatomy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China
| | - Feng Wang
- Department of Anatomy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China
| | - Xuefei Deng
- Department of Anatomy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, China.
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Abdollahzadeh Jamalabadi MY, Daqiqshirazi M, Nasiri H, Safaei MR, Nguyen TK. Modeling and analysis of biomagnetic blood Carreau fluid flow through a stenosis artery with magnetic heat transfer: A transient study. PLoS One 2018; 13:e0192138. [PMID: 29489852 PMCID: PMC5830309 DOI: 10.1371/journal.pone.0192138] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 01/17/2018] [Indexed: 11/18/2022] Open
Abstract
We present a numerical investigation of tapered arteries that addresses the transient simulation of non-Newtonian bio-magnetic fluid dynamics (BFD) of blood through a stenosis artery in the presence of a transverse magnetic field. The current model is consistent with ferro-hydrodynamic (FHD) and magneto-hydrodynamic (MHD) principles. In the present work, blood in small arteries is analyzed using the Carreau-Yasuda model. The arterial wall is assumed to be fixed with cosine geometry for the stenosis. A parametric study was conducted to reveal the effects of the stenosis intensity and the Hartman number on a wide range of flow parameters, such as the flow velocity, temperature, and wall shear stress. Current findings are in a good agreement with recent findings in previous research studies. The results show that wall temperature control can keep the blood in its ideal blood temperature range (below 40°C) and that a severe pressure drop occurs for blockages of more than 60 percent. Additionally, with an increase in the Ha number, a velocity drop in the blood vessel is experienced.
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Affiliation(s)
| | | | - Hossein Nasiri
- Department of Mechanical Engineering, Daneshpajoohan Higher Education Institute, Isfahan, Iran
| | - Mohammad Reza Safaei
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- * E-mail:
| | - Truong Khang Nguyen
- Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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Abdollahzadeh Jamalabadi MY, Akbari Bidokhti AA, Khak Rah H, Vaezi S, Hooshmand P. Numerical Investigation of Oxygenated and Deoxygenated Blood Flow through a Tapered Stenosed Arteries in Magnetic Field. PLoS One 2016; 11:e0167393. [PMID: 27941986 PMCID: PMC5152821 DOI: 10.1371/journal.pone.0167393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 11/14/2016] [Indexed: 11/19/2022] Open
Abstract
Current paper is focused on transient modeling of blood flow through a tapered stenosed arteries surrounded a by solenoid under the presence of heat transfer. The oxygenated and deoxygenated blood are considered here by the Newtonian and Non-Newtonian fluid (power law and Carreau-Yasuda) models. The governing equations of bio magnetic fluid flow for an incompressible, laminar, homogeneous, non-Newtonian are solved by finite volume method with SIMPLE algorithm for structured grid. Both magnetization and electric current source terms are well thought-out in momentum and energy equations. The effects of fluid viscosity model, Hartmann number, and magnetic number on wall shear stress, shearing stress at the stenosis throat and maximum temperature of the system are investigated and are optimized. The current study results are in agreement with some of the existing findings in the literature and are useful in thermal and mechanical design of spatially varying magnets to control the drug delivery and biomagnetic fluid flows through tapered arteries.
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Affiliation(s)
| | | | - Hamid Khak Rah
- Department of Mechanical Engineering, Shiraz Branch, Islamic Azad University, Shiraz, Iran
| | - Siavash Vaezi
- Department of Mechanical Engineering, Sharif University of Technology, Azadi St, Tehran, Iran
| | - Payam Hooshmand
- Department of Mechanical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran
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Kefayati GHR. Simulation of magnetic field effect on non-Newtonian blood flow between two-square concentric duct annuli using FDLBM. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2014.01.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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SARIFUDDIN. SIMULATION OF CASSON FLUID FLOW AND HEAT TRANSPORT IN DIFFERENTLY SHAPED STENOSES. J MECH MED BIOL 2014. [DOI: 10.1142/s0219519414500249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The present investigation deals with a mathematical model representing the response of heat transfer to blood streaming through the arteries under stenotic condition. The flowing blood is represented as the suspension of all erythrocytes assumed to be Casson fluid and the arterial wall is considered to be rigid having differently shaped stenoses in its lumen arising from various types of abnormal growth or plaque formation. The governing equations of motion accompanied by the appropriate choice of the boundary conditions are solved numerically by Marker and Cell (MAC) method. The necessary checking for numerical stability has been incorporated into the algorithm for better precision of the results computed. The quantitative analysis carried out finally includes the respective profiles of the flow-field and the temperature along with their individual distributions over the entire arterial segment as well. The key factors like the pressure drop, wall shear stress, flow separation, Nusselt number and streamlines are examined for qualitative insight into the blood flow and heat transport phenomena through arterial stenosis. In conformity with other several existing findings the present simulation predicts that the pressure drop and Nusselt number diminishes with increasing yield stress values, and significant enhancement in values of Nusselt number is observed with increasing severity of the stenosis. However, the effect of the shapes of the stenoses on flow separation cannot be ruled out from the present investigation.
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Affiliation(s)
- SARIFUDDIN
- Department of Mathematics, Raiganj Surendranath College, Raiganj – 733134, Uttar Dinajpur, W.B., INDIA
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Kefayati GH. FDLBM simulation of magnetic field effect on non-Newtonian blood flow in a cavity driven by the motion of two facing lids. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2013.11.047] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Linge F, Hye MA, Paul MC. Pulsatile spiral blood flow through arterial stenosis. Comput Methods Biomech Biomed Engin 2013; 17:1727-37. [DOI: 10.1080/10255842.2013.765411] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ikbal MA, Chakravarty S, Sarifuddin, Mandal PK. UNSTEADY ANALYSIS OF VISCOELASTIC BLOOD FLOW THROUGH ARTERIAL STENOSIS. CHEM ENG COMMUN 2011. [DOI: 10.1080/00986445.2011.569802] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Md. A. Ikbal
- Department of Mathemetics, Visva-Bharati Santiniketan, India
| | - S. Chakravarty
- Department of Mathemetics, Visva-Bharati Santiniketan, India
| | - Sarifuddin
- Department of Mathemetics, Raiganj Surendranath College, Raiganj, India
| | - P. K. Mandal
- Department of Mathemetics, Visva-Bharati Santiniketan, India
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Tovar-Lopez FJ, Rosengarten G, Khoshmanesh K, Westein E, Jackson SP, Nesbitt WS, Mitchell A. Structural and hydrodynamic simulation of an acute stenosis-dependent thrombosis model in mice. J Biomech 2011; 44:1031-9. [DOI: 10.1016/j.jbiomech.2011.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 02/08/2011] [Accepted: 02/08/2011] [Indexed: 10/18/2022]
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Investigation of spiral blood flow in a model of arterial stenosis. Med Eng Phys 2009; 31:1195-203. [DOI: 10.1016/j.medengphy.2009.07.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2009] [Revised: 05/26/2009] [Accepted: 07/11/2009] [Indexed: 11/23/2022]
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