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Article
Mathematics, Applied
Yu-Ming Chu et al.
Summary: This study examines the impact of unsteady viscous flow in a squeezing channel and investigates the flow and heat transfer mechanism of different shapes of silver-gold hybrid nanofluid particles in the base fluid. The numerical solution and parameter analysis reveal that the Yamada-Ota model of the Hybrid nanofluid has a higher temperature and velocity profile, and the performance of hybrid nanoparticles is superior to that of common nanofluids.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Physics, Multidisciplinary
Shafiq Ahmad et al.
Summary: This study investigates the three-dimensional flow of magnetohydrodynamic Maxwell nanofluid across a slendering stretched surface with various influencing factors considered. The flow equations are transformed into ODEs and numerically solved using the MATLAB bvp4c algorithm. The effects of parameters on concentration, velocity, and temperature distribution are presented graphically, while the transport rates are reported in tabulated form. The results are in good agreement with existing studies.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2022)
Article
Mathematics, Interdisciplinary Applications
Fuzhang Wang et al.
Summary: This paper presents a numerical solution method for nonlinear time-fractional Fisher equations using a local meshless method combined with explicit difference scheme. Radial basis functions are used to compute space derivatives, and the Caputo derivative scheme is used for time-fractional integration. The accuracy is evaluated using the maximum error norm, and the method is validated with non-rectangular domains.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2022)
Article
Mathematics, Interdisciplinary Applications
Saima Rashid et al.
Summary: This study explores the applications of discrete fractional calculus in inequalities, proposing novel versions of reverse Minkowski and related Holder-type inequalities, as well as certain variations for discrete AB-fractional operators with (h) over bar -discrete generalized Mittag-Leffler kernels. The discretization proposed is a new form of existing operators that can be used to efficiently describe dynamics in short time domains by leveraging intriguing features of chaotic systems.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2022)
Review
Chemistry, Physical
A. D. Dhass et al.
Summary: In the past two decades, there has been a persistent emphasis on developing energy generation systems that are free from greenhouse gas emissions in order to combat global warming and its resulting effects. Solar photovoltaic systems have been identified as a promising method for generating electricity, although they suffer from various losses that limit their conversion efficiency. This article reviews several studies that analyze the effects of factors such as parasitic resistances, dust, clouds, solar radiation, temperature, and humidity on the performance of solar photovoltaic systems, as well as suggesting remedies for these issues.
INTERNATIONAL JOURNAL OF PHOTOENERGY
(2022)
Article
Chemistry, Physical
Zafar Said et al.
Summary: This paper investigates the thermophysical properties of water, water and ethylene glycol mixture-based nanodiamond + Fe3O4 hybrid nanofluids using experimental and numerical methods. The study proposes data-driven models, namely Multivariate linear regression (MLR) and Multivariate linear regression with interaction (MLRI) models, to predict the properties. Results show that the hybrid nanofluids exhibit higher thermal conductivity and viscosity compared to the base fluids, and the data-driven models outperform the empirical correlations in predicting the properties.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Thermodynamics
Ikram Ullah et al.
Summary: This study investigates the significance of the Coriolis force and Darcy-Forchheimer stretched flow in ethylene glycol conveying carbon nanotubes in a rotating frame. The focus is on entropy analysis, and the study compares the effects of single-walled and multi-walled carbon nanotubes. The findings demonstrate the relationship between entropy generation, the Brinkman number, and the temperature ratio parameter. Additionally, the study reveals that temperature increases with the intensification of radiative and convective variables, with slightly larger temperature gradient values for single-walled carbon nanotubes.
JOURNAL OF NON-EQUILIBRIUM THERMODYNAMICS
(2022)
Article
Thermodynamics
Fazle Hadi et al.
Summary: Efficient heat removal with less pressure drop is the focal point of research work in the field of thermal management systems. This study analyzes the performance of an inline square pin fin mini channel heat sink with a superhydrophobic coating and compares it with a conventional heat sink. The results show that the superhydrophobic heat sink not only improves heat transfer efficiency but also reduces pressure drop, exhibiting better performance.
Article
Physics, Multidisciplinary
Ikram Ullah
Summary: This report investigates the characteristics of magnetized nanomaterials Darcy-Forchheimer flow with zero mass flux and its significance in industrial and medical applications. It is observed that the exothermic/endothermic reaction improves the temperature of nanomaterials when different parameters are introduced.
WAVES IN RANDOM AND COMPLEX MEDIA
(2022)
Article
Green & Sustainable Science & Technology
Hafiz Muhammad Habib et al.
Summary: Condensers in air conditioning systems rely on heat transfer, with fin tubes being widely used for their enhanced capabilities. This study examined the impact of adjusting fluid flow rates on retention angle and found that an increase in propanol concentration at 0.04% significantly improved retention angle.
Article
Mathematics, Interdisciplinary Applications
Saima Rashid et al.
Summary: This paper investigates the dynamic features of discrete fractional calculus (DFC), specifically focusing on discrete fractional systems with complex dynamics. By considering discrete PI-proportional fractional operator, the author derives novel versions of reverse Minkowski and Holder-type inequalities, contributing to major results. The proposed system exhibits an intriguing feature characterized by nabla fractional sums. The author reports novel special cases to assess system dynamics and highlight existing outcomes. The method is efficient in analyzing system complexity and can be applied to investigate the existence and uniqueness of fractional difference equations.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2022)
Article
Thermodynamics
Pranowo et al.
Summary: This study investigates the Marangoni convection during steam absorption into an aqueous LiBr solution and proposes a radial basis function (RBF) meshless method for numerical simulation. The results show that surface tension affects the absorbing solution, and increasing the Marangoni number has a significant effect on LiBr solution. Additionally, introducing a solid object at the interface can improve the velocity of convection flow.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Physics, Multidisciplinary
Zakir Ullah et al.
Summary: This study investigates the influence of activation energy and melting heat transfer on the unsteady Prandtl-Eyring model. The research provides numerical solutions and graphical representations of key flow parameters, such as fluid concentration, temperature, velocity, and skin friction, against the various influencing factors.
WAVES IN RANDOM AND COMPLEX MEDIA
(2022)
Article
Mathematics, Applied
Fang Jin et al.
Summary: The investigation of this research article focuses on studying the dynamical behavior of the drinking population using the CF arbitrary order operator and a special non-singular kernel. The proposed system is analyzed for existence and uniqueness of solution using fixed point theory and Picard's technique. Numerical analysis using the ABM method is also utilized to interpret the approximate results and observe the dynamical behavior corresponding to different fractional orders.
JOURNAL OF APPLIED ANALYSIS AND COMPUTATION
(2022)
Article
Mathematics, Applied
Sayed Allamah Iqbal et al.
Summary: Fractional-order derivatives have a long history in mathematical science, while half derivatives are less commonly used in applied science and engineering. This study investigates the relationship between the classic RLC circuit and the Atangana-Baleanu fractional-order derivative, using Lyapunov spectral analysis to determine the circuit's stability and instability. Bifurcation plots and Lyapunov exponents analysis reveal that nonautonomous dynamical systems lead to instability and chaotic states, which can be transformed into stable spiral nodes with the presence of the Atangana-Baleanu fractional-order derivative.
JOURNAL OF APPLIED ANALYSIS AND COMPUTATION
(2022)
Article
Chemistry, Multidisciplinary
Fuzhang Wang et al.
Summary: This research investigates the heat and mass transport over a stretched surface with pores using a pseudo-plastic model. The study shows that the use of tri-hybrid nanoparticles enhances thermal performance, and higher Schmidt numbers control mass diffusion.
NANOTECHNOLOGY REVIEWS
(2022)
Article
Thermodynamics
H. Waqas et al.
Summary: This paper examines the mechanism of radiative Oldroyd-B nanofluid flow over a rotating disk with activation energy and motile microorganisms. Nonlinear ordinary differential equations were first converted and solved using a prominent numerical method, leading to a comprehensive graphical representation compared with existing resources.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Muhammad Imran et al.
Summary: This study investigates the effects of melting phenomena and non-linear thermal radiation in Cross nanofluid bioconvection flow with motile microorganisms over a cylinder. The mathematical model takes into account Brownian motion and thermophoresis diffusion. Numerical solutions and profiles analysis show that increasing mixed convection parameter estimates can enhance velocity, while increasing Prandtl number decreases temperature and nanoparticle concentration. A higher Peclet value is shown to lower the microorganism's profile.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Chemical
Mayaram Sahu et al.
Summary: The study found that using water-based tri-hybrid nanofluids can reduce oscillation in natural circulation loops, reach steady state faster than water, and improve effectiveness while reducing entropy generation rate. The shape of nanoparticles has a significant impact on the results, with Al2O3 + Cu + CNT/water showing the best performance. Mass flow rate increases with input power and loop aspect ratio, while decreasing with loop inclination.
Review
Thermodynamics
Muhammad Shuaib et al.
Summary: The study explores the impact of a variable magnetic field on steady flow and convective heat transfer over a revolving disk, analyzing the influence of temperature-dependent properties on fluid characteristics and utilizing similarity abstraction for mathematical modeling. Results indicate that the slip factor effectively controls heat and fluid characteristics, with the effects of dimensionless numbers shown graphically.
ADVANCES IN MECHANICAL ENGINEERING
(2021)
Article
Metallurgy & Metallurgical Engineering
Faraz Afshari et al.
Summary: This study investigates the effects of various parameters on heat pump performance through experimental methods, highlighting the significant impact of refrigerant charge amount, heat source temperature, and compressor oil viscosity. Economic analysis is used to evaluate the obtained results.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2021)
Article
Engineering, Multidisciplinary
Pranowo et al.
Summary: This study proposes a numerical approach for thermal analysis of natural convection in a cavity using the direct meshless local Petrov-Galerkin method and an implicit artificial-compressibility model. The obtained results are validated using experimental data and four test problems, showing excellent agreement with conventional methods found in literature.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2021)
Article
Mathematics
Mohammed Algarni et al.
Summary: The use of nano-enhanced phase change material (NePCM) in latent heat thermal energy storage (LHTES) systems significantly impacts melting/solidification duration and stored energy. This study utilized a hybrid approach involving design of experiments (DOE), computational fluid dynamics (CFD), artificial neural networks (ANNs), multi-objective optimization (MOO), and multi-criteria decision making (MCDM) to optimize nano-additives properties in a shell and tube LHTES system containing paraffin wax as a phase change material (PCM). Multiple optimization variables related to nano-additive properties were considered, with the primary goal of reducing melting duration and increasing total stored energy.
Article
Mathematics
Mashhour A. Alazwari et al.
Summary: This study focuses on the flow characteristics and heat transfer models of nanofluids as heat transfer fluids under different conditions. Mathematical equations and graphs were used to analyze the factors influencing the distribution of temperature, speed, and entropy.
Article
Mathematics
Nidal H. Abu-Hamdeh et al.
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
Muhammad Bilal et al.
Summary: The study focuses on the unsteady incompressible Maxwell nanofluid flow around a stretching cylinder with constant suction/injection impact. By using PCM, the system of ordinary differential equations is numerically computed and compared with Matlab package for validation. The influence of different physical entities on velocity, energy, concentration, and magnetic strength profiles are analyzed and discussed, providing insights on the behavior of fluid flow in this particular scenario.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Yu-Pei Lv et al.
Summary: The article investigates the impact of Hall current, thermal radiation, and magnetic field on hybrid nanofluid flow over a spinning disk surface, utilizing carbon nanotubes and iron ferrite nanoparticles in the base fluid and solving the modeled equations through the Parametric Continuation method. Results indicate that adding CNTs in the carrier fluid is more effective than other nanoparticle types, leading to enhanced heat transmission rates for engineering and industrial applications. The study provides insights into improving heat transmission rates and advancing the use of hybrid nanofluids for various purposes.
SCIENTIFIC REPORTS
(2021)
Article
Thermodynamics
Ikram Ullah et al.
Summary: This study investigates the effects of activation energy on nanofluid flow, as well as the influence of heat sources on temperature and concentration.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Multidisciplinary Sciences
Xiao-Hong Zhang et al.
Summary: This study investigates the numerical solution of an unsteady Ag-MgO/water hybrid nanofluid flow generated by a wavy rotating disc, aiming to enhance thermal energy transfer rates for industrial applications. The inclusion of nanostructured materials significantly improves the carrier fluid's thermal properties, particularly in low energy transmission scenarios. The findings suggest that the geometry of a spinning disc positively impacts velocity and heat energy transfer.
Article
Mathematics
Mashhour A. Alazwari et al.
Summary: This study simulated a novel configuration of a rotating tube bundle under non-isothermal hydrodynamic conditions using a mixture model. It was found that increasing the Reynolds number, nanofluid concentration, and rotation speed could enhance the heat transfer coefficient of the system. The presence of copper nanoparticles also positively impacted the heat transfer paradigm, with a maximum enhancement of 258% achieved by adding a 4% nanoparticle volume concentration to the base fluid.
Article
Mathematics, Interdisciplinary Applications
Yu-Ming Chu et al.
Summary: This report discusses the flow of Powell-Eyring fluid mixed with hybrid nanoparticles over a melting parabolic stretched surface. Flow rheology expressions have been derived under boundary layer theory and transformed into associated ODEs using similarity transformation. The applicability and effectiveness of FEM in solving highly nonlinear problems is demonstrated, showing that the methodology can be easily implemented in MAPLE 18.0.
FRACTAL AND FRACTIONAL
(2021)
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Tie-Hong Zhao et al.
Summary: The article provides a sufficient condition for a function to be strictly concave, generalizing recent results. New bounds are also presented for the function.
JOURNAL OF MATHEMATICAL INEQUALITIES
(2021)
Article
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Tie-Hong Zhao et al.
Summary: The article presents the best bounds for the weighted Holder mean of zero-balanced generalized complete elliptic integrals, extending previous results for complete p-elliptic integrals.
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INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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