Article
Engineering, Multidisciplinary
S. Bilal, M. Imtiaz Shah, Noor Zeb Khan, Ali Akgul, Kottakkaran Sooppy Nisar
Summary: This study addresses the increasing significance of non-isothermal flow of non-Newtonian fluids over exponential surfaces in various industrial and technological processes. The mathematical formulation of the problem is conducted using the Williamson model and Cattaneo-Christov heat flux model. The results show that the Cattaneo-Christov heat flux law exhibits a hyperbolic equation that follows the causality principle and is more compatible with real-world applications. It is also found that the magnetic field suppresses the velocity field and the associated boundary layer region. The impact of parameters such as the thermal relaxation parameter, Williamson fluid parameter, and magnetic field parameter on the flow distributions and heat transfer coefficient is significant.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Wasim Jamshed, Kottakkaran Sooppy Nisar
Summary: This paper explores the two-dimensional flow over a stretched sheet in PTSC under Williamson nanofluid effects. By using useful transformations, the partial differential equations arising from the boundary layer equations of the Williamson nanofluid model are converted into nonlinear ordinary differential equations. The Keller box numerical scheme is utilized to find solutions for the resulting nonlinear ordinary differential equations.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Physics, Multidisciplinary
Asmat Ullah Yahya, Nadeem Salamat, Danial Habib, Bagh Ali, Sajjad Hussain, Sohaib Abdal
Summary: This study investigates the thermal characteristics of Williamson-Sutterby nanofluid through a Darcy-Forchheimer sponge medium, considering the impact of bio-convection and electromagnetic fields. The analysis highlights the effects of different parameters on fluid flow and heat transfer, aiming to prevent settling of nano-entities while maintaining effective heat transportation.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Thermodynamics
Wasim Jamshed, Kottakkaran Sooppy Nisar, Rabha W. Ibrahim, Tayyaba Mukhtar, V. Vijayakumar, Fahad Ahmad
Summary: The study investigates the solid hybrid nanofluid flow and thermal transport characteristics over a slippery, nonlinear, uniform stretching surface, focusing on the influence of nanosolid particle shapes, permeability material, viscous dissipative flow, Cattaneo-Christov heat flux and radiate flux. The computational method employed is Keller-box's to identify self-similar resolution for transformed principles into ordinary-differential equations, leading to important results in the comparison of thermal transmission levels.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
T. Salahuddin, Muhammad Adil Iqbal, Ambreen Bano, Muhammad Awais, Shah Muhammad
Summary: This paper investigates the two-dimensional incompressible magnetohydrodynamic flow of Williamson fluid through a stretching sheet, which has significant importance and applications in various industrial works. The effects of temperature and concentration, double stratification, and viscous dissipation are considered. The flow problem is transformed into ordinary differential equations using similarity transformations and solved using the bvp4c method in MATLAB software. The results show that the motion of the fluid is slowed down by the Williamson fluid parameter and Hartman number, and the mass and heat transfer rates decrease due to thermal and solutal relaxation parameters and the increase in stratification coefficient.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Safak Kayikci, S. Eswaramoorthi, Seda Postalcioglu, K. Loganathan
Summary: The impact of thermal stratification and thermally radiative flow of carbon nanotubes on a Riga plate with injection/suction and heat generation/consumption is investigated. The two varieties of base fluids, like, water and glycerin with single-wall nanotubes and multi-wall carbon nanotubes, are incorporated in this investigation. The consequences of the physical parameters on fluid velocity, fluid temperature, skin friction coefficients and local Nusselt number are explained through tables, graphs and charts. It is detected that the fluid velocity in both directions diminishes when raising the suction/injection and velocity slip parameters. The fluid temperature downturns when enhancing the suction/injection and stratification parameters. The surface shear stress suppresses when increasing the Forchheimer number. The radiation parameter leads to strengthening the heat transfer gradient.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Thermodynamics
Shan Ali Khan, Hassan Waqas, Syed Muhammad Raza Shah Naqvi, Metib Alghamdi, Qasem Al-Mdallal
Summary: The study focuses on the bioconvective cross diffusion flow of magnetized viscous nanofluid past multiple geometries with convective boundary conditions. Results show that the velocity field increases with larger Grashof number, while decreases with larger magnetic parameter. The heat transfer is increased with larger thermal Biot number, and the temperature of fluid is reduced with larger thermal relaxation parameter. The concentration of nanoparticles decreases with concentration relaxation parameter, and the microorganism's field decreases with variations of Peclet number.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Arfan Shahzad, Muhammad Imran, Madeeha Tahir, Shan Ali Khan, Ali Akgul, Sherzod Abdullaev, Choonkil Park, Heba Y. Zahran, Ibrahim S. Yahia
Summary: The present study focuses on the analysis of bioconvective micropolar nanofluid flow between coaxial, parallel, and radially stretching double disks, considering convective thermal boundary conditions, gyrotactic motile microorganisms, thermal conductivity, and thermal radiations. The effects of various physical and bioconvection parameters on velocities, microrotation, thermal field, nanoparticle concentration, and microorganisms' fields are presented using graphs and tables.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Hakeem Ullah, Kashif Ullah, Muhammad Asif Zahoor Raja, Muhammad Shoaib, Kottakkaran Sooppy Nisar, Saeed Islam, Wajaree Weera, Nuha Al-Harbi
Summary: This study investigates the unsteady-two-dimensional squeezing flow of magnetohydrodynamic Jeffrey fluid between two parallel plates and explores the heat transfer characteristics using the Cattaneo-Christov heat flux model and Artificial Neural Network.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Multidisciplinary
S. Eswaramoorthi, S. Sivasankaran
Summary: This work conducts a comparative investigation on the flow of Casson-Williamson fluid over a heated porous stretchy sheet. The energy and mass transfer equations are modeled using Cattaneo-Christov theory, and the series solutions are determined using the Homotopy Analysis Method. The responses of various flow variables to fluid speed, fluid warmness, and other parameters are analyzed through graphs and charts.
Article
Thermodynamics
Ziyad A. Alhussain, A. Renuka, M. Muthtamilselvan
Summary: This article examines the magneto-bioconvective properties of nanofluid flow through a rotating cone using the Cattaneo-Christov heat flux model. The effects of cross diffusion, porous medium, Stefan blowing, and Navier slip are analyzed, and the governing equations are transformed into a system of self-similar ordinary differential equations. A parametric study is conducted to investigate the impact of various parameters on different fields, such as motile microorganisms density, nanoparticle concentration, and temperature. The results show that temperature decreases with increasing thermal relaxation parameter gamma, and an increase in magnetic parameter M leads to a decrease in energy field.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Mathematics, Applied
W. Abbas, Ahmed M. Megahed, Osama M. Morsy, M. A. Ibrahim, Ahmed A. M. Said
Summary: This article presents a numerical analysis of the incompressible two-dimensional flow of a non-Newtonian Williamson fluid, considering the effects of porous medium, thermal radiation, viscous dissipation, and chemical reactions. The study reveals the impact of slip velocity and viscosity factors on Nusselt and Sherwood numbers, as well as the relationship between fluid properties and heat mass transfer.
Article
Engineering, Multidisciplinary
Umar Farooq, Hassan Waqas, Muhammad Imran, Ashwag Albakri, Taseer Muhammad
Summary: This study presents numerical results of MHD flow of nanofluid with the Cattaneo-Christov heat flux model and thermally radiation on a stretching surface with melting boundary conditions. It was found that the nanofluid with y-Al2O3 nanoparticles can cool the stretching surface in certain flow parameters.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Engineering, Mechanical
M. Vijatha, P. Bala Anki Reddy
Summary: This research examines the MHD boundary layer phenomenon of Casson and Williamson hybrid nanofluids on a stretching cylindrical surface. It investigates the impact of various parameters on the heat transfer behavior of these fluids and provides useful data for improving the performance of solar collectors and other devices. The study uses theoretical models and numerical calculations to analyze the fluid velocity, temperature distribution, and Nusselt number.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Mathematics
Ali Saleh Alshomrani
Summary: The dynamics of non-Newtonian Jeffrey fluid in conjunction with a spinning disk surface were investigated in this study. The effects of Hall current and Coriolis forces on the fluid dynamics, along with the impact of non-Fourier heat flux, were examined. It was found that the non-Fourier heat flux resulted in higher rates of heat transfer, and both temperature-related and exponential-related heat sources supported this progression. The swelling effects of the Hall current influenced fluid velocities, while the temperature of the Jeffrey fluid showed an opposite tendency. Asymptotic variances were observed for larger Hall parameter values.
Article
Engineering, Multidisciplinary
Zia Ullah, Hasan Saeed Qazi, Ahmad Alferidi, Mohammed Alsolami, Badr Lami, Hany M. Hasanien
Summary: This study presents a novel method for optimizing energy trading within microgrids by using a hybrid of particle swarm optimization and gravitational search algorithms. The proposed approach promotes cooperative energy trading among microgrids and the main grid, considering network constraints and the uncertainty of renewable energy. Simulation results show that this method maximizes renewable energy utilization, reduces load burden on the main grid, and significantly decreases energy costs.
ALEXANDRIA ENGINEERING JOURNAL
(2024)
Article
Engineering, Multidisciplinary
Chin Joo Tan
Summary: In this study, the effect of mesh sensitivity on the hole-flanging process was investigated by varying the mesh layouts and punch surface meshing techniques. The results showed that the punch displacement and mesh parameters have significant effects on the wall thickness distributions and forming load profiles. Additionally, calibrating the simulation model's stiffness with the experimental peak load through matching the simulated peak load with the experimental peak under stability conditions was recommended.
ALEXANDRIA ENGINEERING JOURNAL
(2024)
Article
Engineering, Multidisciplinary
Wei-Chao Yang, Lun Zhao, E. Deng, Yi-Qing Ni, Wen Zhao, Yi-Kang Liu, De-Hui Ouyang
Summary: This paper establishes a three-dimensional coupled train-subgrade-wind dynamics model, and investigates the aerodynamic load variation and flow field mechanisms when high-speed trains transit different types of subgrade-cutting transition sections in crosswind conditions. The results indicate that the aerodynamic performance of the train deteriorates in these transition sections, and the aerodynamic load of the head car varies in different operating scenarios.
ALEXANDRIA ENGINEERING JOURNAL
(2024)
Article
Engineering, Multidisciplinary
Shashi Bhushan, Anoop Kumar, Eslam Hussam, Manahil SidAhmed Mustafa, Mohammed Zakarya, Wedad R. Alharbi
Summary: In the sample survey theory, accurate estimation of parameters is essential for survey practitioners. This paper suggests optimal classes of estimators by modifying conventional estimators under stratified ranked set sampling (SRSS). The suggested estimators have been shown to outperform traditional estimators, particularly regression (BLU) estimators, both theoretically and experimentally.
ALEXANDRIA ENGINEERING JOURNAL
(2024)
Article
Engineering, Multidisciplinary
Laila A. Al-Essa, Ahmed A. Soliman, Gamal A. Abd-Elmougod, Huda M. Alshanbari
Summary: In this study, the class of lifetime distributions with bathtub-shaped failure rate functions is examined. Statistical inference methods are used to estimate the parameters of the model, and the Bayesian approach is compared with classical methods. The study also discusses the evaluation of product relative merits based on lifetime duration under a hybrid censoring scheme.
ALEXANDRIA ENGINEERING JOURNAL
(2024)
Article
Engineering, Multidisciplinary
Mohammad Partohaghighi, Marzieh Mortezaee, Ali Akguel, Ahmed M. Hassan, Necibullah Sakar
Summary: The study introduces a new variant of the fractal-fractional diffusion equation using the fractal-fractional operator. It proposes a novel operational matrix technique to solve the equation, transforming it into an algebraic system. The study presents graphical and tabular representations of exact and approximated solutions, along with corresponding errors, and conducts comparative analysis of solutions at specific time points.
ALEXANDRIA ENGINEERING JOURNAL
(2024)