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
Thermodynamics
Sohail Rehman, Hashim, Youssef Trabelsi, Sultan Alqahtani, Sultan Alshehery, Sayed M. Eldin
Summary: In dire situations, heat and momentum transmission in nanoparticle systems and non-Fourier heat conduction exhibit non-linear and nonlocal behavior. This study investigates the mechanisms of heat and mass transfer in non-Newtonian fluid flow between inclined planes with porous walls, incorporating a Carreau rheological model. The proposed model incorporates the Cattaneo heat flux to describe anomalous heat and mass transport, considering radiation flux, Brownian diffusion, and thermophoresis. Numerical simulations show that flow reversal only occurs in the divergent domain, and inertial forces dominate the transport process in the convergent domain.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
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
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
Thermodynamics
Abdelatif Salmi, Hadi Ali Madkhali, Basit Ali, M. Nawaz, Sayer Obaid Alharbi, A. S. Alqahtani
Summary: In this article, a generalized modeling approach for simultaneous heat and mass transfer in non-Newtonian fluid in the presence of chemical reaction and heat generation is presented. Numerical simulations using finite element method (FEM) are used to solve the models. The results show good agreement with existing benchmarks.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Mathematics
Nidal H. Abu-Hamdeh, Radi A. Alsulami, Muhyaddin J. H. Rawa, Mashhour A. Alazwari, Marjan Goodarzi, Mohammad Reza Safaei
Summary: PTSCs are commonly used in solar-thermal applications to achieve high temperatures. This study focused on determining the entropy generation when P-ENF flows across porous media on a horizontal plane under thermal jump circumstances. The research found that changing the permeability parameter affects the fluid properties, which in turn impacts thermal efficiency. Under certain conditions, there is a correlation between the increase in heat transport rate and the decrease in entropy production.
Article
Thermodynamics
Yan Zhang, Ying Zhang, Yu Bai, Liancun Zheng
Summary: This study analyzes the heat and mass transfer behaviors of polyacrylamide nanofluid in a porous medium, with findings on the effects of temperature changes on viscosity and thermal conductivity. Experimental and analytical methods confirm nonlinear and linear relationships, revealing new phenomena and enhanced heat transfer efficiency due to growth of specific enthalpy.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
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
Thermodynamics
S. Sivasankaran, M. Bhuvaneswari, A. A. Amer
Summary: The study analyzes the rate of change of thermal and flow transfer inside an enclosed box under the effect of thermal radiation and convective flow driven by buoyancy force. Different positions of the heater and cooler on the sidewalls of the region are varied to examine the heat transfer rate. The results show that the middle location of the partial heater/cooler in the cavity produces enhanced heat transfer rate.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Hassan Waqas, Taseer Muhammad, Sobia Noreen, Umar Farooq, Metib Alghamdi
Summary: This study examines the mathematical formulations of hybrid nanoliquid filled with thermal radiation, Cattaneo-Christov heat theory and melting phenomenon in a rocket engine nozzle. By transforming the governing equations into a system of nonlinear ODEs using similarity transformations, the outcomes are obtained using the bvp4c method in MATLAB software, with physical flow characteristics shown against velocity, temperature, and entropy generation profiles. Velocity decreases with higher volume fraction of nanoparticles and melting parameter, while the thermal field decreases with variations in thermal relaxation and melting parameters, and increases with higher Biot number. The entropy generation profile increases with higher Reynolds number and Brinkman parameter, with this study being the first attempt to characterize melting phenomena and Cattaneo-Christov heat theory in a rocket engine nozzle using hybrid nanoparticles and kerosene as a base fluid.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
M. Irfan, W. A. Khan, Amjad Ali Pasha, Mohammad Irfan Alam, Nazrul Islam, M. Zubair
Summary: This study analyzes the characteristics of heat and mass transport in ferromagnetic flow over a flat plate. The research finds conflicting behavior of the fluid factor and ferro-hydrodynamic interaction factor on the velocity field, and shows the impact of the Prandtl number on the temperature field.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
B. Kumar, G. S. Seth, M. K. Singh, A. J. Chamkha
Summary: In this study, the behavior of fluid flow between rotating discs with multi-wall and single-wall carbon nanotubes-based fluid under various porous medium and convective thermal conditions was investigated. The tangential velocity of MWCNTs-based fluid was found to be higher than that of SWCNTs-based fluid when the porous permeability parameter was small; the effect of Reynolds number varied under different porous permeability conditions.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Engineering, Multidisciplinary
Aqsa Riaz, Qazi Mahmood Ul Hassan, Tasawar Abbas, Kaouther Ghachem, Aaqib Majeed, Farzan Majeed Noori, Lioua Kolsi
Summary: This study proposes a heat flux model for nonlinear convective heat transfer of nanofluids, as well as its application on extending surfaces. By proper conversions and implementation of the variational iteration method, the nonlinear system is analytically solved, providing valuable insights for assessing thermodynamic outcomes.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
M. Israr Ur Rehman, Haibo Chen, Aamir Hamid, Wasim Jamshed, Mohamed R. Eid, Sayed M. El Din, Hamiden Abd El-Wahed Khalifa, Assmaa Abd-Elmonem
Summary: In this article, the influence of Cattaneo-Christov heat fluxing on the Darcy-Frochheimer flowing of Sutterby nanofluid via a stretchable surface with chemical reactive and heat radiative impacts is examined. The highest-order nonlinear partial differential equation is addressed using the similarity function and a new set of ordinary differential equations. The obtained equations are numerically examined and graphical behaviors for various aspects are illustrated. The results show good congruence with existing research.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
