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Document Type |
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Thesis |
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Document Title |
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NUMERICAL STUDY ON MAGNETO-CONVECTION IN ENCLOSURES WITH THERMAL RADIATION AND دراسة عددية على الحمل المغناطيسي في المنغلقات مع الإشعاع الحراري وتوليد الإدخال |
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Subject |
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Faculty of Science |
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Document Language |
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Arabic |
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Abstract |
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More research was needed in a number of different areas in order to fully understand the flow behavior of non-Newtonian fluids.A theoretical inquiry is conducted to look at the time-dependent flow of non-Newtonian fluid with an emphasis on thermal and solute transport. The influence of the infinite shear rate of viscosity has been taken into account in this thesis to introduce the Oldroyd-B fluid mathematically model. For physical significance, In order to alter the energy and concentration distributions in a stagnation point flow toward a stretching cylinder, the effects of a non-uniform heat source and sink with homogeneous-heterogeneous chemical processes have been added. Through the use of similarity transformations, the extremely non-linear ordinary differential equations are addressed analytically. Programming in (bvp4c) produces the numerical solutions.
The convective stagnation point flow of magnetized Oldroyd-B fluid with cubic autocatalysis chemical reaction and variable heat source was examined in Chapter 3. We use similarity transformations to change partial differential equations (PDE) into ordinary differential equations (ODE). By including new variables, nonlinear equations can be converted to linear equations.
In chapter 4, it was examined how aluminum oxide nanoparticles and water were transported via a square cavity holding a rotating cylinder with a changeable radius to determine how the factors utilized in the problem affect or relate to the average Nusselt number, temperature, average temperature, and mass flow rate. We make use of the COMSOL Multiphysics 5.6 finite element package.
The results of mixed convective flow of an Oldroyd-B liquid that is chemically reacting with a Cattaneo-Christov double flux under the effects of second order slip, heat absorption/heat generation, and Newtonian cooling/Newtonian heating are discussed in Chapter 5. Using the appropriate variables, the controlling PDE is transformed into an ODE. These resulting equations are solved using the similarity transformations method.
In Chapter 6, the effects of the Cattaneo-Christov heat flux model for an Oldroyd-B flow in MHD with convective heating and heterogeneous-homogeneous chemical reaction on a stretching plate were examined. The controlling PDEs are transformed into a nonlinear ODE with the required similarity variables, and the similarity transformations approach is used to solve the problem.
Key words: (Free Convection - Oldroyd-B – Radiation – Chemical reaction- non-Newtonian
fluids) |
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Supervisor |
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Dr. Ali Saleh Zuhair Al-Shamrani |
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Thesis Type |
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Doctorate Thesis |
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Publishing Year |
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1444 AH
2023 AD |
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Added Date |
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Monday, June 5, 2023 |
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Researchers
| ياسر راجح العدواني | ALADWANI, YASER RAJEH | Researcher | Doctorate | |
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