Analysis of Different Stenotic Geometries on Two-Phase Blood Flow

Document Type : Original Article

Authors

1 Basic Engineering Sciences Department, Engineering Faculty, Menoufia University

2 shebein elkom- menofia

3 Engineering Mathematics and Physics Department, Faculty of Engineering, Cairo University, Giza, Egypt

4 Department of Basic Engineering Science, Faculty of Engineering, Menoufia University, Shebin El-Kom, Egypt

5 Basic Engineering Sciences Dep., Faculty of Engineering, Shibin Elkom , Elmenoufia , Egypt

Abstract

There are many different mathematical models and solution techniques dealing with the blood flows. A two-phase (liquid-solid) model solved by a perturbation method will be introduced. Effects of hematocrit, Reynolds number, area reduction, and different geometries of the stenotic channel are studied on the velocity, pressure gradient, and streamlines. The flow characteristics (velocity and pressure) give a great increase as the stenosis classified as a sever stenosis. It is found that, the stenosis geometry has a great effect on the pressure gradient in the axial direction, and also there is a change in velocity profile in each cross section of the geometry. The hematocrit has a noticed effect on the flow velocity and pressure gradient, in which as the hematocrit increases the maximum velocity decreases before the throat while it increased after that section.

Keywords

ERJ. Engineering Research Journal
Volume 43, Issue 4
Volume 43(4) issued on 16/9/2020 in 6 Parts (PART 1: Electric Eng., PART 2: Mechanical Eng., PART 3: Production Eng., PART 4: Civil Eng., PART 5: Architecture Eng., PART 6: Basic Eng. Sciences)
October 2020
Pages 355-367

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