Article
Chemistry, Multidisciplinary
Adeola Borode, Thato Tshephe, Peter Olubambi, Mohsen Sharifpur, Josua Meyer
Summary: The study investigated the influence of concentration and temperature on the electrical conductivity, viscosity, and thermal conductivity of GNP/Fe2O3 hybrid nanofluids. Results showed that nanofluids exhibited superior electrical conductivity, viscosity, and thermal conductivity compared to water. The electrical conductivity and thermal conductivity increased linearly with concentration at a constant temperature, while the viscosity of the nanofluid increased with the addition of hybrid nanoparticles and decreased with temperature. Additionally, increasing the addition of hybrid nanoparticles in the base fluid enhanced the thermal conductivity of the nanofluid, and the thermal conductivity ratio increased with the addition of nanoparticles. These findings highlight the potential of GNP/Fe2O3 hybrid nanofluids for improving heat transfer and energy efficiency in various industrial applications.
Article
Physics, Multidisciplinary
Muhammad Ramzan, Saima Riasat, Hammad Alotaibi
Summary: This study discusses the entropy generation analysis of electro-magneto hydrodynamics (EMHD) hybrid nanofluid copper oxide-aluminum oxide/ethylene glycol (CuO-Al2O3/C2H6O2) flow in a porous media. The addition of surface catalyzed reactions and the consideration of variable thermal conductivity and viscosity contribute to the uniqueness of the assumed model. The results show the effects of drag force, magnetic field, and electric field on the flow characteristics and nanoparticle alignment.
Article
Engineering, Mechanical
T. Salahuddin, Muhammad Awais
Summary: This study investigates the nanofluid flow in the boundary layer of a slender paraboloid surface, which is commonly seen in bullet tips, airplanes, missiles, and rockets. The thermal conductivity and viscosity of the fluid play a crucial role in various engineering applications, such as automobile industries, solar power generation, and heat exchangers. The study considers temperature-dependent viscosity and examines the effects of thermophoretic motion, Brownian motion, heat generation, and chemical reactions on heat and mass transport. Numerical solutions are obtained by transforming the governing equations into coupled ordinary differential equations (ODEs) and using Matlab software with the BVP4c method. The results are presented graphically, and discussions about the variation of different parameters are included.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Thermodynamics
T. Salahuddin, Muhammad Awais, Wei-Feng Xia
Summary: This study focuses on the flow of two-dimensional Carreau fluid with heat generation and activation energy over a paraboloid surface, where the effects of key parameters on velocity, temperature, and concentration fields are analyzed numerically and graphically. The results show that the velocity field increases due to the power law index and variable viscosity parameter, while the temperature rises with high heat source parameter values and decreases with Prandtl number. The concentration of fluid increases due to activation energy and thermal diffusivity parameter.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
G. Vijayan, P. P. Shantharaman, Ramalingam Senthil, R. Karunakaran
Summary: This study analyzes the performance of an unshielded receiver tube integrated solar parabolic trough collector using low-concentration Al2O3/deionized water nanofluid as the heat transfer fluid. The results show that the concentration and flow rate of the nanofluid have a positive impact on the collector efficiency.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Roghayeh Bardool, Ali Bakhtyari, Feridun Esmaeilzadeh, Xiaopo Wang
Summary: This study applies the free-volume model and Esmaeilzadeh-Roshanfekr equation of state to calculate the viscosity of nanofluids and proposes a simple modification to improve the model's performance. The results show that the modified model performs better in terms of accuracy compared to the original model.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
K. Sharma, N. Vijay, F. Mabood, I. A. Badruddin
Summary: The study of fluid flow over a rotating disk is of great significance in various industries and scientific fields. This investigation focuses on the ferrohydrodynamic flow of magnetic nanofluid caused by a rotating disk, taking into account temperature-dependent thermal conductivity and geothermal viscosity. The rotation of the disk is found to significantly enhance the radial movement of flow, while other parameters such as variable viscosity, magnetic field parameter, and Reynolds number also have an impact on the flow. The findings of this study provide valuable insights into the heat transfer phenomenon and fill a gap in the existing literature.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Physics, Multidisciplinary
Md Shamshuddin, Mohamed R. Eid
Summary: The study focused on heat transfer in water-based nanofluids containing ferromagnetic nanoparticles flowing between parallel stretchable spinning discs with variable viscosity influence and variable conductivity. A constructed mathematical model was utilized to analyze the problem, and numerical results were presented graphically for velocity and temperature distributions. Findings showed that stretching and spinning parameters affect boundary layers, while different nanofluids exhibit varying thermal conductivity strengths.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Adil Darvesh, Tanveer Sajid, Wasim Jamshed, Assad Ayub, Syed Zahir Hussain Shah, Mohamed R. Eid, Syed M. Hussain, Mohammad Akram, Muhammad Bilal Hafeez, Marek Krawczuk
Summary: This study numerically investigates the motion characteristics and heat transfer processes of mixed convective inclined magnetized Cross nanofluid with variable viscosity on a moving permeable surface. The results show that the frictional force and Nusselt number have a significant influence on the heat transfer, and the suction parameter and Brownian motion parameter affect the fluid velocity and mass transport.
APPLIED SCIENCES-BASEL
(2022)
Article
Thermodynamics
Muhammad Imran, Tahir Kamran, Shan Ali Khan, Taseer Muhammad, Hassan Waqas
Summary: This report discusses the bio-convection aspects of Casson nano fluid incorporated with thermal radiation and analyzes the influencing factors. The results of velocity, temperature, concentration, and, motile microorganism profiles are obtained through calculations and graphical representation.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Energy & Fuels
Mohanan Vasanthakumari Bindu, Gnana Muthu Joselin Herbert
Summary: By adjusting the volume concentration of nanoparticles, a ternary nanofluid composed of Al2O3, ZnO, and multiwall carbon nanotubes demonstrates significant improvements in thermal conductivity and viscosity, making it suitable for medium-temperature heat transfer applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Mehmet Karatas, Yunus Bicen
Summary: Dielectric nanofluids, specifically SiO2 nanoparticle suspensions in mineral oil, have been investigated for their improved dielectric and thermal properties. The addition of nanoparticles leads to an enhancement in AC breakdown voltage and thermal conductivity, but it also results in a decrease in AC breakdown voltage and an increase in viscosity when the critical volume fraction is exceeded.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Thermodynamics
Muhammad Rooman, Muhammad Jameel, Asifa Tassaddiq, Zahir Shah, Ahmed Alshehri, Poom Kumam
Summary: This study evaluates the flow of Cu-Water nanofluid across gradually stratified paraboloids of revolution and investigates the influence of various fluid properties and important factors on the flow. Heat transfer equations consider stratification, thermal emission, viscous and joule dissipation, while mass transfer equation investigates chemical reaction. The mathematical model and graphical results demonstrate the relationship between flow characteristics and several important parameters.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Khalid Abdulkhaliq M. Alharbi, Nazia Shahmir, Muhammad Ramzan, Musawa Yahya Almusawa, Seifedine Kadry
Summary: The study investigates the impact of nonlinear radiative heat flux on the unsteady flow of Casson nanofluid between two concentric stretched cylinders, taking into account temperature-dependent viscosity and thermal conductivity. Convective conditions on the inner cylinder wall and the presence of microorganisms in the nanofluid are considered. The influence of thermophoresis and Brownian motion on the flow, heat transfer, mass transfer, and microorganisms is analyzed using the Buongiorno model. Numerical solutions are obtained using similarity transformations and the bvp4c method. The results reveal changes in the radial and axial profiles as the unsteadiness parameter increases, as well as a decrease in the motile density profiles with both Lewis and bioconvective Lewis numbers.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Thermodynamics
Thameem Basha Hayath, Sivaraj Ramachandran, Ramachandra Prasad Vallampati, O. Anwar Beg
Summary: This study aims to investigate the impact of variable viscosity and variable thermal conductivity on boundary layer flow through a comprehensive mathematical model. The findings reveal the influence of key parameters on heat, mass and momentum characteristics, visualized through graphs and tables.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2021)
Article
Mathematics, Applied
Liaquat Ali Lund, Abderrahim Wakif, Zurni Omar, Ilyas Khan, Isaac Lare Animasaun
Summary: This report investigates the influence of thermal radiation and viscous dissipation on the motion of hybrid nanofluid over a moving surface. The study finds that thermal radiation parameter enhances heat transfer rate and increases temperature, and two solution branches are observed, with the upper branch being stable.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Engineering, Mechanical
Vasudeva Reddy Minnam Reddy, A. Sreevallabha Reddy, R. Suresh Babu, N. Sandeep
Summary: This study explores the impact of nanospray on the film flow of Casson and Sutterby nanofluids over a cylindrical surface. The findings suggest that the heat transmission rate of the Casson nanoliquid is higher than the Sutterby nanoliquid, indicating its potential value in heat transfer applications.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Hossam A. Nabwey, M. Girinath Reddy, B. K. Naveen Kumar, N. Sandeep
Summary: This study investigates the method of hydrogen energy storage by improving the heat transfer performance of PTSC. The study finds that thermal radiation with the combination of Oldroyd-B fluid can enhance the heat transmission rate of PTSC to a new level.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Niraj Rathore, N. Sandeep
Summary: Nanotechnology has great potential in biomedical applications, such as drug delivery, medical imaging, and tumor treatment. Graphene oxide and aluminium oxide nanoparticles show excellent properties in nano-drug delivery and cancer treatment. This theoretical study examines the heat transfer in blood flow through a stenotic artery using GO-Al2O3 nanoparticles. The results show that the Oldroyd-B model has better heat transmission rate and lower drug resistance compared to the Maxwell model.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Thermodynamics
Kerehalli Vinayaka Prasad, Rajashekhar Choudhari, Hanumesh Vaidya, Ashwini Bhat, Isaac Lare Animasaun
Summary: In recent years, there has been a growing interest in modern micro- and nanotechnologies for micro/nano-electronic devices. One of the new trends is the simultaneous use of nanofluids and biological micro-organisms. This study develops a mathematical model to examine the flow of mixed convective couple-stress nanofluids in a vertical channel, and investigates the effects of various non-Newtonian flow parameters on the results.
Article
Thermodynamics
Hanumesh Vaidya, Isaac Lare Animasaun, Kerehalli Vinayaka Prasad, Choudhari Rajashekhar, Javalkar U. Viharika, Qasem M. Al-Mdallal
Summary: The dynamics of blood carrying microscopic copper particles through overlapping stenotic arteries is an important research area, especially for understanding the flow dynamics in blood vessels. The study used the Casson model to analyze the peristaltic blood flow of copper nanoparticles in overlapping stenotic arteries. Higher temperature and velocity were observed in the stenosed arteries, with a decrease as it approaches the artery wall. The increase in the heat source parameter led to a higher temperature distribution.
JOURNAL OF NON-EQUILIBRIUM THERMODYNAMICS
(2023)
Article
Chemistry, Physical
Rasheed Ibraheem, Calum Strange, Goncalo dos Reis
Summary: In this research, a data-driven, feature-based machine learning model is proposed to predict the entire capacity fade and internal resistance curves of batteries using only voltage response from constant current discharge over the first 50 cycles. The model is applicable to settings with controlled charging but noisy discharge, such as electric vehicles. The research provides a detailed analysis of the impact of generated features on the model, and explores the performance of sub-sampling the voltage curve.
JOURNAL OF POWER SOURCES
(2023)
Article
Thermodynamics
P. Nanda, N. Sandeep, C. Sulochana, G. P. Ashwinkumar
Summary: The present article investigates the effects of radiative heat flux and Joule heating on the 3D magneto-flow of tangent hyperbolic mixed nanoliquid above a linear/nonlinear expandable surface. A hybrid nanofluid is prepared by suspending aluminum alloy nanoparticles AA7072 and AA7075 in methanol liquid. Nonlinear partial differential equations are transformed into ordinary differential equations using appropriate similarity conversions, and their solutions are obtained using the bvp5c MATLAB package. The study provides simultaneous results of radiative hydrodynamic flow under linear and nonlinear extending surface conditions, and the influence of various factors on the flow characteristics is demonstrated through plots. The thermal transport rate is found to be twice as high in the nonlinear extending case compared to the linear stretching case, with the presence of unique nanoparticles significantly enhancing the thermal transport mechanism of the non-Newtonian liquid.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Thermodynamics
Niraj Rathore, N. Sandeep
Summary: The application of silver and gold nanoparticles in antimicrobial and anticancer therapies is explored, and it is found that gold nanoparticles can effectively convert photons to heat to destroy cancer cells. The radiative heat distribution and heat transfer characteristics of blood-based Ag-Au hybrid nanofluid are investigated through experiments and numerical simulations.
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS
(2023)
Article
Engineering, Mechanical
N. Sandeep, P. Nanda, G. P. Ashwinkumar
Summary: Numerical computations were used to investigate the effect of the Buongiorno slip mechanism and radiative heat on gyrotactic microorganisms in a nanofluid flow. The results show that the deposition of nanomaterials significantly affects the flow and heat transfer, particularly in the suction case.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2023)
Article
Energy & Fuels
Calum Strange, Rasheed Ibraheem, Goncalo dos Reis
Summary: This article introduces a method called "one-cycle" model for predicting remaining useful life of batteries, which is applicable for regular testing. The model is characterized by versatility, strong prediction capability, and independence from battery history. The article proposes a universal mechanism based on exponential smoothing to reduce prediction variance by leveraging cycle-to-cycle prediction updates. Additionally, a model of models is built using model ensembling, which outperforms the underlying models.
Article
Thermodynamics
I. L. Animasaun, A. S. Oke, Qasem M. M. Al-Mdallal, A. M. Zidan
Summary: Variability in temperature of stagnant and moveable wall is inevitable in the motion of water-based hybrid nanofluid subject to heat source on impermeable walls in the industry. However, little is known about the motion of water conveying spherical carbon nanotubes, cylindrical graphene, and platelet copper nanoparticles at different volumes of nanoparticles and levels of buoyancy. The governing equations are presented, non-dimensionalized, and numerically solved for constant pressure and asymptotically large Grashof number. It is worth concluding that minimal velocity is obtainable with stagnant impermeable surface, while minimal temperature distribution is obtainable with moving impermeable surface. Minimal local skin friction coefficients are obtainable with sufficiently large volume of nanoparticles (i.e., spherical carbon nanotubes, cylindrical graphene, and platelet copper) in water-based ternary-hybrid nanofluid flow on stagnant impermeable wall.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Thermodynamics
M. D. Shamshuddin, Isaac Lare Animasaun, Sulyman Olakunle Salawu, Pudi Srinivasa Rao
Summary: This study examines the dynamics of ethylene glycol conveying SWCNTs and MWCNTs nanoparticles under concentration and temperature stratification. It is found that thermal convective term affects the flow profile, velocity field, and thermal diffusion of SWCNTs and MWCNTs. Additionally, magnetic field-induced electromagnetic force and rising porosity decrease the characteristic flow dimension. Moreover, Ohmic magnetic dissipation positively influences SWCNTs and MWCNTs, while radiation has a negative influence. The Nusselt number shows an increasing trend for heat transfer in SWCNTs nanofluid, but a decreasing trend in MWCNTs nanofluid with higher volume fractions.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Physics, Multidisciplinary
S. Saranya, Faisal Z. Duraihem, I. L. Animasaun, Qasem M. Al-Mdallal
Summary: This study focuses on understanding the mechanisms and kinetics of homogeneous and heterogeneous reactions in ternary-hybrid nanofluids. The non-linear partial differential equations are transformed into ordinary differential equations using local similarity transformations and numerically solved using MATLAB. The Tiwari-Das model is used to study the flow-thermal behavior of the nanofluid, and thermal conductivity formulations are incorporated based on experimental works. The investigation shows that the strength of homogeneous and heterogeneous reactions has opposite effects on the concentration fields.
Article
Multidisciplinary Sciences
S. Saranya, Qasem M. Al-Mdallal, I. L. Animasaun
Summary: This paper focuses on the dynamics of time-dependent fluids with plastic dynamic viscosity and limiting viscosities at zero. It also examines the transport phenomenon involving migration of tiny particles and gyrotactic microorganisms. The Shifted Legendre Collocation method is used to solve the coupled, nonlinear, and dimensionless form of the transport equation. The study reveals various characteristics of Casson fluid and Carreau fluid in different scenarios.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
