Department of Mathematics

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Author: search.filters.author.Dr.Mohsan Hassan

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    Study on the Heat and Mass Transport of Non- Newtonian Powell-Eyring Model Fluid Over Variable Thicker Sheet
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2021) Muhammad Ahsan; CIIT/SP20-RMT-031/LHR; Dr.Mohsan Hassan; LHR TP 7635
    Non-Newtonian fluids are used in a wide range of industries, including the polymer sector, the food industry, and even everyday life. The viscosity behaviour of these fluids identifies their rheological behaviour. Many factors affected viscosity change, including temperature, shear rate, pressure, and so on. When heat and mass flows are explored simultaneously, these effects cannot be underestimated, particularly temperature. In this thesis the problem for Study the Heat and Mass flow of Non-Newtonian Powell-Eyring model fluid is explored across a variable thicker sheet. The fluid is considered to be incompressible, laminar, non-newtonian over variable thicker sheet. All the programming is done on MATHEMATICA. The mathematical model is based on partial differential equations (PDEs) that represent continuity, momentum, and energy. To determine the model's solution, it is first converted into an ordinary differential equation (ODEs), which is then solved using the RK-Method. The model's output is presented in the form of velocity and temperature profiles, as well as various parameters.
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    Combine Effects of Viscoelastic and Shear Thinning Properties on the Heat and Mass Transport of Fluid
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2021) Muhammad Shafiq; CIIT/FA19-RMT-053/LHR; Dr.Mohsan Hassan; LHR TP 7387
    In the current thesis, a rheological model which shows the both shear thinning and viscoelastic properties of the fluids is developed and implemented into the fluid flow problem. The mathematical problem is developed through continuity, momentum and energy equations. The momentum equation is contracted by using modified rheological model. The solution of these equations is obtained through numerical method. The results of velocity and temperature distribution is calculated and displayed for discussion