Article
Engineering, Multidisciplinary
Nepal Chandra Roy, Ioan Pop
Summary: This study investigates the dual solutions for mixed convection flow of an Oldroyd-B fluid with alumina nanoparticles over a shrinking sheet, considering the effects of magnetic field and heat source/sink. The results show that some published findings are unrealistic. It is observed that with higher values of Deborah numbers, suction parameter, and magnetic field parameter, the occurrence of dual solutions becomes wider and the local skin friction coefficient and local Nusselt number increase. Additionally, dual solutions exist in a broader domain when the volume fraction of alumina nanoparticles is less than or equal to 0.05.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Mathematics, Applied
Masood Khan, Abdul Hafeez, Jawad Ahmed
Summary: This study discusses the flow of Oldroyd-B nanofluid caused by a rotating disk, using Fourier's law of heat conduction and von Karman transformations. Numerical solutions were obtained using the bvp midrich scheme, resulting in graphical representations of velocity fields, temperature, and concentration distributions.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2022)
Article
Engineering, Multidisciplinary
Aamir Ali, Javairia Akhtar, H. J. Anjum, M. Awais, Zahir Shah, Poom Kumam
Summary: Fluid motion can be caused by surface stretching, temperature or concentration differences. This study focuses on the 3D nanofluid flow due to expanding surface of Oldroyd-B fluid. The impact of various parameters on flow field is explored using nonlinear coupled ODE's and homotopy analysis method.
AIN SHAMS ENGINEERING JOURNAL
(2021)
Article
Thermodynamics
M. K. Nayak, V. S. Pandey, S. Shaw, O. D. Makinde, K. M. Ramadan, Mouna Ben Henda, Iskander Tlili
Summary: The investigation analyzed the flow and heat transfer behavior of a non Newtonian fluid subject to an externally inclined magnetic field. The study revealed that the increase in magnetic field strength has an opposite effect on fluid velocity and temperature, while factors such as thermal relaxation time and curvature parameter play a role in controlling the rate of heat transportation. Additionally, the angle of inclination of the magnetic field affects the fluid flow in a reverse manner.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Masood Khan, Muhammad Yasir, Ali Saleh Alshomrani, Sivanandam Sivasankaran, Yaser Rajeh Aladwani, Awais Ahmed
Summary: This study focuses on the time-dependent flow of non-Newtonian fluids and investigates the thermal and solutal transport. The research reveals that the strength of homogeneous and heterogeneous reactions enhances the concentration of catalysts at the surface, and the non-uniform heat source/sink parameter plays a major role in determining the heat transportation rate.
AIN SHAMS ENGINEERING JOURNAL
(2022)
Article
Physics, Applied
Muhammad Ramzan, Jawad Ali, Nazia Shahmir, Hassan Ali S. Ghazwani, Kottakkaran Sooppy Nisar, C. Ahamed Saleel
Summary: This study numerically solves a set of ordinary differential equations to analyze the influence of a magnetic dipole on the flow of non-electrical conducting Oldroyd-B fluid. The effects of thermophoretic particle deposition and chemical reaction parameter on velocity, temperature, and concentration are examined. The model is validated in the limiting case.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Thermodynamics
K. Venkata Ramana, K. Gangadhar, T. Kannan, Ali J. Chamkha
Summary: This study analyzed the hydromagnetic transverse flow of an Oldroyd-B-type liquid with variable thickness using the Cattaneo-Christov model, considering additional impacts of thermal conductivity and heat generation, and numerical solutions were obtained using the Runge-Kutta-Fehlberg method. The physical response related to velocity and temperature was investigated, showing that the momentum boundary-layer thickness affects the magnetic field strength and thermal boundary layer in opposite ways, while retardation and relaxation time effects have opposite impacts on the temperature field. The results are valuable for understanding transport phenomena involving hydromagnetic rheological fluids.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Mathematics, Applied
Shuguang Li, Sami Ullah Khan, Kamel Al-Khaled, Ezza Ali, M. Ijaz Khan, Khalda Mohamed Ahmed Elamin, Bandar M. Fadhl, Basim M. Makhdoum
Summary: This study addresses the phenomenon of heat and mass transfer due to ferromagnetic flow of Oldroyd-B nanofluid. By implementing additional thermal sources and features such as heat source, thermal radiation, and activation energy, the dynamic of the flow problem is extended. The flow source is a moving stretching surface with magnetic dipole impact, and convective boundary conditions are implemented. The Boungrino nanofluid model is used to observe the consequences of thermophoresis and Brownian motion.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Physics, Applied
Zubair Hussain, Waqar Azeem Khan, Mehboob Ali, Muhammad Waqas
Summary: Nanofluids, with their exceptional mechanical, thermal, electrical, and biomedical properties, offer great potential for improving the performance of isothermal systems by enhancing the conductivity of the host fluids. In various energy-related fields, nanoparticles have shown significant applications in energy storage, energy conversion, and energy devices such as thermoelectric systems, fuel cells, supercapacitors, solar cells, rechargeable batteries, LEDs, and carbon-based LEDs. This study investigates the 3D flow of Sutterby nanofluid over a bidirectional extended surface, considering thermophoresis and Brownian motion effects. The results show that the temperature of the Sutterby nanofluid decreases with increasing stretching rates, and the concentration profile decreases with more complex estimations of Lewis number and thermophoresis parameters.
MODERN PHYSICS LETTERS B
(2023)
Article
Multidisciplinary Sciences
Ayantika Ghosh, Nepal Chandra Roy
Summary: The effects of magnetic field, suction, and heat source or sink on the flow and heat transfer of a Maxwell hybrid nanofluid (Cu-Al2O3/water) over a shrinking sheet are investigated. The governing equations are transformed into ordinary differential equations using similarity transformations, and they are solved using the shooting method. It is found that the shear stress, heat transfer rate, and velocity increase with the increase of Deborah number, buoyancy parameter, and suction parameter. The existence of dual solutions expands with the increase of the suction parameter, Deborah number, magnetic parameter, and volume fraction of Cu nanoparticles. For a higher volume fraction of Al2O3 nanoparticles, the shear stress and heat transfer rate decrease, while an increase in Cu nanoparticles volume fraction increases the shear stress but reduces the heat transfer rate.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Ying-Qing Song, Aamir Hamid, Tian-Chuan Sun, M. Ijaz Khan, Sumaira Qayyum, R. Naveen Kumar, B. C. Prasannakumara, Sami Ullah Khan, Ronnason Chinram
Summary: This study presents an analysis of an unsteady and incompressible flow of Williamson nanoliquid in the presence of variable thermal characteristics. By utilizing appropriate similarity variables, the equations for energy, momentum, and mass are converted into non-linear ODEs. The numerical solution of the boundary value problem is successfully implemented using a computer algorithm, confirming the accuracy of the results.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Mathematics
Rusya Iryanti Yahaya, Norihan Md Arifin, Ioan Pop, Fadzilah Md Ali, Siti Suzilliana Putri Mohamed Isa
Summary: This paper investigates the flow of nanofluids over a permeable stretching/shrinking surface and their impact on heat transfer performance. The study found that the thermal conductivity of nanofluids is enhanced with the increase of the heat source parameter. Cu/H2O nanofluid exhibits better heat transfer performance compared to other nanofluids.
Article
Thermodynamics
Javad Mohammadpour, Fatemeh Salehi, Ann Lee, Luca Brandt
Summary: This study focuses on the innovative integration of different cooling techniques to maximize the thermal performance in a 3D microchannel heat sink (MCHS). The effect of particle concentration, orifice spacing, orifice height, oscillation frequency, membrane amplitude, and phase actuation on convective and conductive heat transfer is analyzed. In terms of thermal performance, 180 out-of-phase cases show a higher figure of merit (FOM) than in-phase SJs. Increasing the frequency and amplitude enhances the heat transfer.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Thermodynamics
Mukesh Kumar Awasthi
Summary: This paper examines the linear stability of the interface formed by a viscoelastic liquid and a viscous gas, considering the significant influence of heat and mass transfer at the interface. The effects of various physical parameters on the stability of the liquid/gas interface are investigated through theoretical and graphical analysis in the study.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Article
Thermodynamics
Tanveer Sajid, Wasim Jamshed, Mohamed R. Eid, Salem Algarni, Talal Alqahtani, Rabha W. Ibrahim, Kashif Irshad, Syed M. Hussain, Sayed M. El Din
Summary: This work presents a unique theoretical mathematical model of ternary hybrid nanofluid to enhance heat transfer. The tri-hybrid nanoparticles TiO2, Al2O3, and AA7072 are mixed with ethylene glycol to form the TiO2+Al2O3+AA7072/EG mixture. The tri-hybrid nanofluid is analyzed as a 3-D flow with variable temperature and radiative flux. The results show that the tri-hybrid nanofluid has better thermal conductance than the hybrid nanofluid, and the fluid's velocity and temperature increase due to thermal radiative flux and variable thermal conductivity effects.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Shafiq Ahmad, Sohail Nadeem, Muhammad Naveed Khan
Summary: This article examines the steady bio-convective hybridized micropolar nanofluid flow with stratification conditions above a vertical exponentially stretching surface. The study found that the increase in solid volume fraction leads to a decrease in velocity near the boundary and an increase away from the boundary. Furthermore, increasing the Peclet number, microorganism stratification parameters, and bio-convection Schmidt number results in a decrease in microbial distribution.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Chenggang Kuang, Ping Tan, Mohsin Javed, Hafiza Humaira Khushi, Sohail Nadeem, Shahid Iqbal, Fwzah H. Alshammari, Mashael D. Alqahtani, Hashem O. Alsaab, Nasser S. Awwad, Hala A. Ibrahium, Guocong Liu, Toheed Akhter, Abdul Rauf, Hamid Raza
Summary: This paper focuses on the synthesis of sulfur-doped reduced graphene oxide/NiS2 nanocomposites for efficient dye degradation through photocatalysis under solar irradiation. The nanocomposites show high efficiency in removing dyes, and can be reused multiple times. Additionally, they have antibacterial effects and can be used for water purification.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Multidisciplinary
Bushra Ishtiaq, Ahmed. M. Zidan, Sohail Nadeem, Mohammed Kbiri Alaoui
Summary: This article presents a comparative study of magnetohydrodynamics stagnant point flow in hybrid nanofluid using the extended versions of the Yamada-Ota model and Xue model. The study considers a time-dependent and thermally radiative two-dimensional flow with a stretchable/shrinking permeable sheet. The hybrid nanofluid is formulated by suspending Aluminum Oxide Al2O3 and Copper Cu nanoparticles in water. The nonlinear dimensionless system of ordinary differential equations is solved numerically using the bvp4c methodology. The study finds that the heat transfer rate is higher in the Yamada-Ota model compared to the Xue model, and increasing the stretching parameter enhances the velocity field but deteriorates the temperature distribution.
AIN SHAMS ENGINEERING JOURNAL
(2023)
Article
Mathematics, Applied
Nadeem Abbas, Sohail Nadeem, Wasfi Shatanawi
Summary: This study presents a numerical analysis of MHD 3D second grade fluid over slendering stretching sheet, with considerations of heat generation and thermal radiation impacts. The problem is mathematically stated as PDEs and transformed to nonlinear ODEs using appropriate similarity variables. The solutions are computed using MATLAB bvp4c function and the impacts of involving parameters on velocity and temperature are analyzed. The results show the effects of various parameters on skin friction and Nusselt number.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Mathematics, Applied
Sohail Nadeem, Salman Akhtar, Nevzat Akkurt, Anber Saleem, Shahah Almutairi, Hassan Ali Ghazwani
Summary: This study mathematically investigates the heat and mass transfer during the peristaltic flow of a non-Newtonian Jeffrey fluid inside an elliptic cross-section duct. The analysis considers constant heat absorption and provides a descriptive assessment of the heat and mass transfer. Exact solutions are obtained using a polynomial solution technique for the dimensionless partial differential equations in the problem. A purposeful graphical assessment is provided for the final mathematical results. Velocity and temperature profiles reach their highest values in the core region of the duct and gradually decrease towards the duct boundaries.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Green & Sustainable Science & Technology
Wajad Ulfat, Ayesha Mohyuddin, Muhammad Amjad, Tonni Agustiono Kurniawan, Beenish Mujahid, Sohail Nadeem, Mohsin Javed, Adnan Amjad, Abdul Qayyum Ashraf, Mohd Hafiz Dzarfan Othman, Sadaful Hassan, Muhammad Arif
Summary: This study developed a thermal insulation composite material using buffing dust-laden tanning waste mixed with polystyrene and a blowing agent, aiming to promote resource recovery and a circular economy. The composite material exhibited good thermal conductivity, compression strength, density, and water absorption compared to conventional insulation panels. The addition of buffing dust reduced the thermal conductivity of polystyrene by 10%. The composite material also showed thermal stability and the presence of functional groups. Overall, this work not only solved energy consumption issues but also contributed to environmental protection and air pollution reduction through recycling and reusing buffing dust waste as thermal insulation material.
Article
Physics, Multidisciplinary
Mirza Naveed Jahangeer Baig, Nadeem Salamat, Faisal Z. Duraihem, Salman Akhtar, Sohail Nadeem, Jehad Alzabut, Salman Saleem
Summary: This study mathematically models the stagnation point flow over a heated stretching cylinder using the phase flow approach. The interaction between impinging stagnation flow and flow due to the stretching surface of the cylinder is thoroughly interpreted. Exact analytical solutions are computed and evaluated graphically. Heat transport analysis and Nusselt number interpretation are incorporated. The results show a dominant impinging stagnation flow for higher oncoming flow pressure and lower stretching velocity of the cylinder.
CHINESE JOURNAL OF PHYSICS
(2023)
Article
Physics, Applied
Sohail Nadeem, Bushra Ishtiaq, Nevzat Akkurt, Hassan Ali Ghazwani
Summary: This study focuses on the entropy analysis of a hybrid nanofluid in stagnant point flow. Nonlinear dimensionless ordinary differential equations are obtained through appropriate similarity transformations. The results show that the mixed convection parameter has a significant impact on the velocity field, entropy generation, and induced magnetic field, and both entropy and heat transfer rate increase with the increase of mixed convection parameter.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Engineering, Multidisciplinary
Sohail Nadeem, Shahbaz Ali, Nevzat Akkurt, Mohamed Bechir Ben Hamida, Shahah Almutairi, Hassan Ali Ghazwani, Sayed M. Eldin, Zareen A. Khan, A. S. Al-Shafay
Summary: This paper presents a comprehensive study on the mathematical modelling and numerical simulation of non-Newtonian blood flow in an idealized stenosed artery. The results show that the non-Newtonian nature of the fluid model significantly influences flow dynamics, with a greater degree of stenosis leading to higher velocity and pressure drop. Wall shear is substantially larger in stenotic passages, and the severity of stenosis is directly related to this increasing behavior.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Sohail Nadeem, Shahbaz Ali, Jehad Alzabut, Mohamed Bechir Ben Hamida, Sayed M. Eldin
Summary: This study investigates the influence of hybrid nano-fluid on heat transport in a semi-annular channel using numerical methods. The hybrid nano-fluid consists of a liquid water with a suspension of SWCNT and MWCNT. Constant heat fluxes are applied to the channel walls. The finite volume approach is used to solve the governing equations. The results show that heat transport decreases as the volume fraction of MWCNT increases. The heat transfer from the walls to the fluid is affected by the curvature of the walls. The study provides velocity contours, isotherms, and local Nusselt number distributions for certain volume fractions of nanoparticles. It is discovered that walls with smaller curvature have stronger convection heat transfer. The pressure increases with the increase of nanoparticle volume percentage.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
S. Nadeem, R. Akber, H. A. Ghazwani, J. Alzabut
Summary: This study examines the behavior of steady and incompressible magnetohydrodynamics fluid flow with sinusoidal walls in a square cavity. The finite element method is used to numerically model the flow and heat transfer, resulting in temperature and velocity profiles. The study finds that the temperature and velocity exhibit good convergence for various parameter values. The significant impact of heat transfer rate on the results is also discussed.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Materials Science, Multidisciplinary
S. Nadeem, Bushra Ishtiaq, Jehad Alzabut, Hassan A. Ghazwani, Ahmad M. Hassan
Summary: This study compares the time-dependent flow of a micropolar fluid between a linear stretching sheet and an exponential stretching sheet. It is found that the exponential stretching sheet provides more consequential results compared to the linear stretching sheet. Additionally, the material parameter shows an increase in the velocity field for both types of sheets.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Jehad Alzabut, Sohail Nadeem, Sumaira Noor, Sayed M. Eldin
Summary: This article investigates the modeling and numerical simulation of Magnetohydrodynamic (MHD) buoyancy driven convection flow in a differentially heated, square enclosure. Numerical solutions are computed for different values of Rayleigh number ranging 103 < Ra < 107 and Hartmann number ranging 0 < Ha < 40. Comportment of MHD free convection heat flow from transient to steady state is numerically examined for a period of 0 to 1 s. It is seen that with increasing values of Rayleigh number there is increase in local Nusselt number distribution on heated side of the cavity, while velocity distribution in the flow domain decreases with increasing Hartmann number.
RESULTS IN PHYSICS
(2023)
Article
Thermodynamics
Sohail Nadeem, Bushra Ishtiaq, Jehad Alzabut, Sayed M. Eldin
Summary: Fractional calculus has various applications in different fields, including biology, physics, oscillation, wave propagation, and viscoelastic dynamics. This study focuses on the fractional derivative analysis of a Brinkman hybrid nanofluid with an inclined magnetic field using the Prabhakar fractional derivative and the Mittag-Leffler function. The effects of exponential heating and a vertical plate moving with exponential velocity are considered in the analysis. The results show that the fractional constraints lead to a decrease in both temperature and velocity fields.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Business, Finance
Muneeb Ahmad, Yousaf Ali Khan, Chonghui Jiang, Syed Jawad Haider Kazmi, Syed Zaheer Abbas
Summary: Unemployment is a major issue for both developed and developing nations, and the coronavirus has had an impact on the unemployment rate. Accurately predicting the unemployment rate is crucial for policymakers, and a hybrid approach using linear and non-linear models showed promising results. The study found that the unemployment rate will increase in the coming years due to COVID-19, and it will take at least 5 years to overcome its impact.
INTERNATIONAL JOURNAL OF FINANCE & ECONOMICS
(2023)
