A Computational Fluid Dynamic Study Of Blood Flow Through Stenosed Arteries
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A Computational Fluid Dynamic Study Of Blood Flow Through Stenosed Arteries
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Author : Keng Cheng Ang
language : en
Publisher:
Release Date : 1996
A Computational Fluid Dynamic Study Of Blood Flow Through Stenosed Arteries written by Keng Cheng Ang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Effects of stenoses on characteristics such as pressure drops, flow velocities and shearing stresses on the arterial walls are examined and their significance on the progression of arterial diseases is discussed.
Cfd Analysis Of Blood Flow Through Stenosed Arteries
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Author : Narmada Surigala
language : en
Publisher:
Release Date : 2015
Cfd Analysis Of Blood Flow Through Stenosed Arteries written by Narmada Surigala and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Femoral artery categories.
The pathological complications of atherosclerosis, namely heart disease and stroke, remain the leading cause of mortality in the world. Cardiovascular illness is highly prevalent among the American population. One manifesto of cardiovascular disease is Peripheral Artery Disease (PAD) which is caused by atherosclerosis in the arteries. Atherosclerosis is a vascular disease that reduces arterial lumen size through plaque deposition and arterial wall thickening. The flow patterns in the arteries are highly modulating along with the cardiac cycle and a strong function of the waveform created by the heartbeat. In this study, a computational simulation model is developed to analyze blood flow distribution in a femoral artery network based on Navier-Stokes equation. A comparative analysis of blood flow through femoral artery is done based on Newtonian and non-Newtonian blood flow by using Carreau-Yasuda model subjected to a waveform based on a cardiac cycle. The non-Newtonian CFD flow analysis model is use to analyze blood flow distributions in a femoral artery along with the adjacent capillary porous tissue medium. This simulation model is used to analyze the flow and stress field in a healthy and atherosclerosis affected femoral arteries. Velocity, pressure and Wall Shear Stress fields over cardiac cycle are analyzed to demonstrate that adverse flow field created upstream and downstream of the blockage that may cause enhanced growth in size of the blockage.
Computational Hemodynamics Theory Modelling And Applications
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Author : Jiyuan Tu
language : en
Publisher: Springer
Release Date : 2015-02-24
Computational Hemodynamics Theory Modelling And Applications written by Jiyuan Tu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-24 with Technology & Engineering categories.
This book discusses geometric and mathematical models that can be used to study fluid and structural mechanics in the cardiovascular system. Where traditional research methodologies in the human cardiovascular system are challenging due to its invasive nature, several recent advances in medical imaging and computational fluid and solid mechanics modelling now provide new and exciting research opportunities. This emerging field of study is multi-disciplinary, involving numerical methods, computational science, fluid and structural mechanics, and biomedical engineering. Certainly any new student or researcher in this field may feel overwhelmed by the wide range of disciplines that need to be understood. This unique book is one of the first to bring together knowledge from multiple disciplines, providing a starting point to each of the individual disciplines involved, attempting to ease the steep learning curve. This book presents elementary knowledge on the physiology of the cardiovascular system; basic knowledge and techniques on reconstructing geometric models from medical imaging; mathematics that describe fluid and structural mechanics, and corresponding numerical/computational methods to solve its equations and problems. Many practical examples and case studies are presented to reinforce best practice guidelines for setting high quality computational models and simulations. These examples contain a large number of images for visualization, to explain cardiovascular physiological functions and disease. The reader is then exposed to some of the latest research activities through a summary of breakthrough research models, findings, and techniques. The book’s approach is aimed at students and researchers entering this field from engineering, applied mathematics, biotechnology or medicine, wishing to engage in this emerging and exciting field of computational hemodynamics modelling.
Mathematical Modelling And Numerical Simulation Of Blood Flow Through Stenotic Arteries
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Author : Somkid Amornsamankul
language : en
Publisher:
Release Date : 2008
Mathematical Modelling And Numerical Simulation Of Blood Flow Through Stenotic Arteries written by Somkid Amornsamankul and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Coronary artery diseases are a main cause of death in many countries. The understanding of blood flow through the arteries will provide more effective strategies to prevent and deal with artery diseases. The aim of this study is to develop a sophisticated simulation technique for the study of blood flow through the stenosed coronary artery. This work involves the construction of a three-dimensional fluid-structure interaction model coupling blood flow with arterial wall deformation, and development of numerical algorithms utilizing the current state of art technology in computational fluid dynamics.
Computational Fluid Dynamics Investigation Of Blood Flow Through Left Coronary Artery
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Author : Sahid C. Smith
language : en
Publisher:
Release Date : 2006
Computational Fluid Dynamics Investigation Of Blood Flow Through Left Coronary Artery written by Sahid C. Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Cardiovascular system categories.
Biofluid Mechanics
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Author : Krishnan B. Chandran
language : en
Publisher: CRC Press
Release Date : 2012-02-24
Biofluid Mechanics written by Krishnan B. Chandran and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-24 with Medical categories.
Designed for senior undergraduate or first-year graduate students in biomedical engineering, Biofluid Mechanics: The Human Circulation, Second Edition teaches students how fluid mechanics is applied to the study of the human circulatory system. Reflecting changes in the field since the publication of its predecessor, this second edition has been extensively revised and updated. New to the Second Edition Improved figures and additional examples More problems at the end of each chapter A chapter on the computational fluid dynamic analysis of the human circulation, which reflects the rapidly increasing use of computational simulations in research and clinical arenas Drawing on each author’s experience teaching courses on cardiovascular fluid mechanics, the book begins with introductory material on fluid and solid mechanics as well as a review of cardiovascular physiology pertinent to the topics covered in subsequent chapters. The authors then discuss fluid mechanics in the human circulation, primarily applied to blood flow at the arterial level. They also cover vascular implants and measurements in the cardiovascular system.
Cardiovascular Fluid Mechanics
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Author : Gianni Pedrizzetti
language : en
Publisher: Springer
Release Date : 2014-05-04
Cardiovascular Fluid Mechanics written by Gianni Pedrizzetti and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-04 with Technology & Engineering categories.
The book presents the state of the art in the interdisciplinary field of fluid mechanics applied to cardiovascular modelling. It is neither a monograph nor a collection of research papers, rather an extended review in the field. It is arranged in 4 scientific chapters each presenting thoroughly the approach of a leading research team; two additional chapters prepared by biomedical scientists present the topic by the applied perspective. A unique feature is a substantial (approx. one fourth of the book) medical introductory part, written by clinical researchers for scientific readers, that would require a large effort to be collected otherwise.
Cfd Analysis Of Coronary Artery Blood Flow From Stenting And Various Levels Of Stenosis
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Author : Luke Matthew Chapdelaine
language : en
Publisher:
Release Date : 2020
Cfd Analysis Of Coronary Artery Blood Flow From Stenting And Various Levels Of Stenosis written by Luke Matthew Chapdelaine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Computational Fluid Dynamic Analysis Of A Stenosed Carotid Artery
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Author : Donna Morin
language : en
Publisher:
Release Date : 2002
Computational Fluid Dynamic Analysis Of A Stenosed Carotid Artery written by Donna Morin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Arteries categories.
Fluid Structure Interaction Study Of Stenosed Carotid Artery Considering The Effects Of Blood Pressure And Altered Gravity
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Author : Raghuvir Pai
language : en
Publisher:
Release Date : 2022
Fluid Structure Interaction Study Of Stenosed Carotid Artery Considering The Effects Of Blood Pressure And Altered Gravity written by Raghuvir Pai and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Computers categories.
Atherosclerosis is a very common cardiovascular disease (CVD) causing increased morbidity. Atherosclerosis is a disease that involves several factors and usually affects the wall of the arterial bifurcations. Advanced Computational Fluid Dynamics (CFD) techniques has the potential to shed more light in understanding of the causes of atherosclerosis and perhaps in its early diagnosis. Fluid Structure Interaction (FSI) study was carried out on two different three dimensional patient specific cases (a) Normal carotid bifurcation and (b) Stenosed carotid bifurcation. Physiological conditions were considered to evaluate hemodynamic parameters and understand the origin and progression of atherosclerosis in the carotid artery bifurcation, first for the normal and then with hypertension disease. Commercial software ANSYS and ANSYS CFX (version 19.0) was used to perform a two-way FSI using a fully implicit second-order backward Euler differencing scheme. Arterial response was calculated by employing an Arbitrary Lagrangian,ÄìEulerian (ALE) formulation and using the temporal blood response. The carotid artery bifurcation caused a velocity reduction and backflow was observed causing a reduction in the shear stress. A low shear stress resulted due to an oscillatory behavior at the start point of the internal carotid artery near the carotid sinus. Shear stresses are obtained by using anatomically realistic 3D geometry and representative physiological conditions. Results of this study agree with those in the literature showing that the regions with low wall shear stress. Geometry and flow conditions greatly affected the hemodynamics of the carotid artery. Furthermore, regions of relatively low wall shear stress were observed post stenosis, which is a known cause of plaque development and progression. Under altered gravity conditions the same artery was studied to determine the flow conditions and predict the progression of plague.