Article
Thermodynamics
Amir Abbas, Iqra Ijaz, Muhammad Ashraf, Hafeez Ahmad
Summary: The research study focused on simulating heat transfer and fluid flow over an inclined moving surface under the influence of different factors, with numerical results showing trends in velocity distribution and temperature profile. Increasing density variation parameter led to velocity profile formation, while an increase in magnetic field and radiation parameters decreased velocity but increased temperature.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Mathematics
Zeeshan, Rasool Shah, Waris Khan, Essam R. El-Zahar, Se-Jin Yook, Nehad Ali Shah
Summary: This study investigates the effects of thermal convection, magnetic field, and porosity on the rheological properties of a generalized polymeric material using the Sakiadis flow. Mathematical modelling is used to convert the physical situation into a set of nonlinear equations. Analysis of the physical quantities involved is conducted through numerical and graphical representations. The findings suggest that magnetic field and porosity have a significant impact on the fluid temperature and heat transfer rates. The novelty of this study lies in the investigation of the Sakiadis flow of thermal convection magnetized Oldroyd-B fluid across a porous sheet serving as a heat reservoir. These findings have potential applications in various technical and industrial processes.
Article
Multidisciplinary Sciences
Amir Abbas, Aziz Khan, Thabet Abdeljawad, Muhammad Aslam
Summary: This study numerically evaluated the influence of variable density and magnetohydrodynamics on Williamson Sakiadis flow in a porous space. The study considered the effects of Joule heating, dissipation, and heat generation on optically dense gray fluid. The results showed that an increase in density variation parameter led to a reduction in fluid velocity and an increase in temperature, while an increase in Williamson fluid parameter, magnetic number, radiation parameter, heat generation, and Eckert number led to an increase in fluid temperature.
Article
Thermodynamics
Muhammad Ramzan, Tahir Mehmood, Hammad Alotaibi, Hassan Ali S. Ghazwani, Taseer Muhammad
Summary: This study aims to compare the heat transfer capabilities of hybrid nanofluid and simple nanofluid under specific conditions, analyzing the flow characteristics of both through a mathematical model. The results show that thermal stratification and radiation parameters have different effects on the fluid temperature profile, while the skin friction coefficient models are similar.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Ebrahem A. A. Algehyne, Anwar Saeed, Muhammad Arif, Muhammad Bilal, Poom Kumam, Ahmed M. M. Galal
Summary: This article examines the impact of magnetohydrodynamics (MHD) on the flow of MgO-Ag/water-based hybrid nanoliquid with motile microorganisms, considering slip effects and activation energy on the Riga plate. Furthermore, the presence of a uniform heat source/sink and the thermophoresis effect are addressed. The obtained non-linear system of governing equations is solved numerically using the parametric continuation method (PCM). The analysis highlights the heat transfer rate and the impact of slip conditions on velocity, energy, and mass profiles.
SCIENTIFIC REPORTS
(2023)
Article
Physics, Multidisciplinary
Liaqat Ali, Xiaomin Liu, Bagh Ali, Sohaib Abdal, Rana Muhammad Zulqarnain
Summary: A theoretical study was conducted on the effects of magnetohydrodynamic field, Biot number on heat transfer characteristics, using the Cattaneo-Christov flux model. The study showed varying behaviors of concentrations, flow speed, temperature in boundary layers due to parametric variation, presented results were verified with excellent comparison to previous studies, demonstrating the accuracy of the results.
Article
Multidisciplinary Sciences
A. M. Abd-Alla, Esraa N. Thabet, F. S. Bayones
Summary: The study aims to investigate the impact of various factors on the concentration, temperature, and velocity in the magneto-hydrodynamic peristalsis of Jeffery nanofluid. Numerical solutions were obtained using MATLAB, and the results showed that these parameters have a significant effect.
SCIENTIFIC REPORTS
(2022)
Article
Mechanics
Nastaran Naghshineh, Nathaniel S. S. Barlow, Mohamed A. A. Samaha, Steven J. J. Weinstein
Summary: This work provides an analytical solution using power series expansion for the boundary-layer problem of Ostwald-de Waele power law fluids. The study extends the approach used for Newtonian fluids and the variable substitutions are chosen consistent with the large distance behavior. Contrary to previous literature, the solution exists only in the range of power law exponents 0.5 < alpha <= 1. An approximate analytical solution is obtained using a convergent power series with an asymptotically motivated gauge function in the range of approximately 0.74 <= a < 1.
Article
Physics, Applied
Hassan Waqas, Faisal Fareed Bukhari, Taseer Muhammad, Umar Farooq
Summary: This research investigates the effects of thermal radiation, entropy generation, and variable thermal conductivity on hybrid nanofluids by a moving sheet. The study uses numerical methods to solve the resulting ordinary differential equations, and finds that entropy generation increases with higher Reynolds numbers, velocity slip parameters, Brinkman numbers, and magnetic parameters. Scientists have shown a growing interest in the significance of nanoparticles due to their wide range of technical, industrial, and commercial applications.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2021)
Article
Physics, Applied
P. Chandini Pattanaik, S. Jena, S. R. Mishra
Summary: This study investigates the two-dimensional time-dependent flow of nanofluid over a permeable stretching or sinking sheet. The inclusion of a transverse magnetic field, magnetic dissipation, and thermal radiation enriches the flow phenomena. The use of nanofluids is of increasing importance in various industrial applications, as well as engineering and biomedicine.
MODERN PHYSICS LETTERS B
(2024)
Article
Thermodynamics
Xueqiang Shi, Yutao Zhang, Xiaokun Chen, Yuanbo Zhang, Liu Rui, Ruizhi Guo, Tenglong Zhao, Yin Deng
Summary: Research findings indicate that a thermal fluctuation at 0.1 Hz is conducive to coal ignition, with the ignition delay time decreasing exponentially with the increase of thermal convection velocity and radiation heat flux. External thermal disturbances lead to periodic variations in temperature, convection velocity, and oxygen concentration, with different types of heat disturbance causing fluctuation trends.
COMBUSTION AND FLAME
(2022)
Article
Mathematics, Applied
Ammarah Raees, Sidra Saeed, Muzamil Hussain, Umer Farooq, Ali J. Chamkha
Summary: This research focuses on the nonsimilar analysis of non-Newtonian nanofluids under thermal radiations in different geometrical configurations. By employing numerical algorithms and the local nonsimilarity approach, the effects of various parameters on fluid velocity, thermal, and concentration profiles are calculated and compared. This study provides valuable insights for future industrial and engineering applications of nanofluids.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2022)
Article
Mathematics, Applied
Mumtaz Khan, Amer Rasheed, Muhammad Shoaib Anwar
Summary: In this study, a novel fractional constitutive relationship for buoyance-driven flow and heat transfer in hybrid nanomaterials was developed to control the flow and heat transfer behavior. SiO2/MoS2 hybrid nanoparticles with different mass ratios were employed in water as the base fluid. The results showed that increasing the thermal fractional parameter enhanced the heat transfer rate, and the combination of two nanoparticles in water significantly contributed to heat transfer. Thermal radiation also played a significant role in heat transfer in fluid flow.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Engineering, Environmental
Jiyun Wang, Mingyan Wang, Xiaoyang Yu, Ruowen Zong, Shouxiang Lu
Summary: This study investigates the fire behavior of a tank with oil leakage and burning through a series of experiments. The results show that the leak diameter affects the maximum pressure and thermal radiation of the fire, posing a serious threat to occupants and equipment. A computational fluid dynamics modeling approach is used to predict the boiling point of the leaking oil, and the predicted results are validated against experimental data.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Mathematics, Applied
Naeem Ullah, Sohail Nadeem, Hassan Ali Ghazwani
Summary: In this study, a mathematical computational analysis was conducted on mixed convection nanofluid (CuO-water) flow in a lid-driven parallelogram enclosure with corrugated walls. The flow dynamics were investigated using the finite element method, and the outcomes in terms of isotherms, streamlines, and line graphs were analyzed against various emerging parameters. The results showed that at lower Richardson numbers, the flow exhibited forced convection, while at higher Richardson numbers, the flow transitioned to free convection. Additionally, maximum heat transfer was observed when a magnetic field was applied perpendicular to the flow and at maximum amplitude of wall undulations.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
