Review
Engineering, Multidisciplinary
G. Kalpana, K. R. Madhura, Ramesh B. Kudenatti
Summary: This theoretical study explores the characteristics of magnetohydrodynamics hybrid nanofluid flow on an irregular wall, taking into account the Brownian motion and thermophoresis effect of nanoparticles. By solving non-dimensionalized nonlinear partial differential equations, the system of equations for velocity variation, heat transfer, and hybrid nanofluid concentration is obtained, with calculation of wall shear stress, heat, and mass transfer gradients on the surface.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2022)
Article
Physics, Multidisciplinary
P. Sudarsana Reddy, P. Sreedevi
Summary: The study numerically analyzed the natural convection flow and heat transfer characteristics of Buongiorno's mathematical model nanofluid flow inside a square cavity, showing an increase in heat transfer rate with rising Rayleigh number.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Mathematics, Interdisciplinary Applications
V. Puneeth, S. Manjunatha, J. K. Madhukesh, G. K. Ramesh
Summary: This study investigates the role of mixed convection, Brownian motion, and thermophoresis in the dynamics of Casson hybrid nanofluid, revealing better heat and mass transfer characteristics in linear stretching sheets, an enhancement in fluid flow velocity with the mixed convection parameter, opposite effects in the thermal and concentration fields, and a decrease in flow velocity with an increase in the yield stress due to the rise in the Casson parameter.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Mathematics
Hossam A. Nabwey, Waqar A. Khan, A. M. Rashad, Fazal Mabood, Taha Salah
Summary: This study investigates the behavior of a power-law nanofluid's mixed bio-convective stagnation point flow approaching a stretchable surface with a passively controlled boundary condition. The study highlights the impact of various parameters on the distribution and transport properties. The findings have significant implications for the engineering application of nanofluids.
Article
Computer Science, Interdisciplinary Applications
Jawali C. Umavathi, Ali J. Chamkha
Summary: This study investigates the instability of a horizontal sparsely filled nanofluid porous layer saturated with a binary mixture and fast chemical reaction. The presence of nanoparticles is found to increase the critical Rayleigh number and stabilize the system, while the chemical reaction parameter destabilizes the system. The results also provide insights into the oscillatory and stationary convection behavior in the system.
MATHEMATICS AND COMPUTERS IN SIMULATION
(2021)
Article
Thermodynamics
Ammar Alsabery, Mohammad Vaezi, Tahar Tayebi, Ishak Hashim, Mohammad Ghalambaz, Ali J. Chamkha
Summary: This study investigates mixed convection of nanofluid within a wavy lid-driven enclosure with a prominent heat source. A two-phase method is used for the nanoliquid, resulting in a non-homogeneous concentration field. The governing equations are solved using the finite element technique. The study examines the effects of adding nanoparticles, wave number and amplitude of the wavy walls, and the aspect ratio of the heat source on heat transfer rate.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Ammar I. Alsabery, Tahar Tayebi, Hakim T. Kadhim, Mohammad Ghalambaz, Ishak Hashim, Ali J. Chamkha
Summary: The study investigates the influence of a two-phase hybrid nanofluid approach on mixed convection characteristics, considering factors such as nanoparticle migration and the presence of solid obstacles. The analysis of non-dimensional parameters using the finite element technique reveals that temperature gradient can lead to significant concentration variations within the enclosure.
JOURNAL OF ADVANCED RESEARCH
(2021)
Article
Thermodynamics
Jordi Pallares, Alexandre Fabregat
Summary: This study introduces a model for predicting particle deposition velocities on isothermal walls in turbulent natural convection flow at moderate Rayleigh numbers, taking into account various influencing factors. The model is verified by comparisons with Direct Numerical Simulations and experimental measurements reported in the literature.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Crystallography
Hammad Alotaibi, Khuram Rafique
Summary: The study focuses on analyzing the heat and mass transport phenomenon of micropolar nanofluid flow on a vertical stretching Riga plate, using electromagnetic hydrodynamic behavior. The influences of Brownian motion and thermophoresis on the plate are examined, as well as the micro-rotational effects of particles. Numerical computations show good agreement with earlier studies, with velocity profiles corresponding with modified Hartmann numbers and increased energy and mass flux rates. Concentration distribution decreases with higher Brownian motion values, while temperature distribution increases with higher values of both Brownian motion and thermophoresis, showing a direct relation with thermophoretic impact.
Article
Engineering, Chemical
R. Harish, R. Sivakumar
Summary: This numerical study investigates the mixed convection flows and heat transfer performance of nanofluids in a cubical enclosure under turbulent conditions. The results show higher temperature and turbulent kinetic energy distributions for opposing flows compared to assisting flows, with an increase in average heat transfer rate observed with a decrease in Richardson number and an increase in volume fraction for both flow types. Additionally, the effects of Brownian motion and thermophoresis are more pronounced in assisting flows.
Article
Engineering, Multidisciplinary
Saman Hosseinzadeh, Davood Domiri Ganji
Summary: This paper presents the heat and mass transmission mechanisms of steady magnetohydrodynamic nanofluid flows in the presence of a uniform magnetic field. The effects of hybrid nanoparticles and various parameters on the fluid properties are analyzed. The results obtained using the Radial Basis Function methodology are in good agreement with the numerical method.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Mathematics
Noureddine Elboughdiri, Gurram Dharmaiah, Jupudi Lakshmi Rama Prasad, Chagarlamudi Baby Rani, Kothuru Venkatadri, Djamel Ghernaout, Abderrahim Wakif, Yacine Benguerba
Summary: This research focuses on the steady flow of a ferrofluid within a porous medium, considering temperature variations of thermal conductivity. It analyzes the effects of magnetic dipoles, radiation, Brownian motion, and thermophoresis on nanoparticles and presents the governing equations using mathematical methods. The graphical outcomes provide a comprehensive assessment of fluid properties, including velocity, temperature, and concentration.
Article
Mathematics, Interdisciplinary Applications
Mingwen Chen, Yefan Tian, Weidong Yang, Xuehui Chen
Summary: In this paper, the mixed convective heat transfer mechanism of nanofluids is investigated using a novel Cattaneo-Buongiorno model that incorporates non-local properties, Brownian motion, and thermophoresis diffusion. The finite difference method is employed to numerically solve the highly non-linear equations, and the effectiveness of the numerical method and convergence order are presented. The results show that the fractional parameter delta enhances the energy transfer process of nanofluids, while the fractional parameter gamma has the opposite effect. The effects of Brownian motion and thermophoresis diffusion parameters are also discussed.
FRACTAL AND FRACTIONAL
(2022)
Article
Thermodynamics
J. C. Umavathi, M. A. Sheremet
Summary: This study investigates the influence of exothermic chemical reaction on natural thermo-solutal convection in a horizontal channel filled with sparsely packed permeable nanofluid. It is found that increasing the viscosity ratio delays the onset of convection, and the fluid in the porous medium is more prone to instability with exothermic chemical reactions. Additionally, a critical value of Frank-Kamenetskii number is identified, which is independent of both porous media parameter and viscosity ratio.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Physics, Multidisciplinary
Y. Akbar, F. M. Abbasi, U. M. Zahid, S. A. Shehzad
Summary: The study investigates the entropy generation rate in mixed convective peristaltic motion of a reactive nanofluid through an asymmetrical divergent channel, revealing that improving Brownian motion and thermophoresis parameters increases entropy generation. The temperature of the nanofluid decreases due to rising buoyancy forces caused by concentration gradient, while the concentration profile and velocity increase with chemical reaction and Brownian motion parameter enhancements, respectively.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2021)
Article
Chemistry, Physical
Reza Alian Moghadam, S. Mohammad Sajadi, Nidal H. Abu-Hamdeh, Smain Bezzina, Rasool Kalbasi, Arash Karimipour, Ferial Ghaemi, Dumitru Baleanu
Summary: This study investigates the adsorption process of H2O molecules by a porous carbon matrix in the presence of NaCl impurities using molecular dynamics method. The results show that increasing impurities in atomic structures decrease the adsorption capacity of the porous carbon matrix for H2O molecules.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Xinglong Liu, Moram A. Fagiry, S. Mohammad Sajadi, Radwan A. Almasri, Arash Karimipour, Zhixiong Li, Dumitru Baleanu, Ferial Ghaemi
Summary: The computational procedure was utilized to investigate the size effect of Fe3O4 nanoparticles on atomic behavior and phenomena of nanoparticles accumulation in a nanochannel under an external magnetic field. The study revealed that the size of nanoparticles played a significant role in the accumulation process, and the presence of an external magnetic field could postpone this event.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Mohammad Behzad Botlani Esfahani, S. Mohammad Sajadi, Nidal H. Abu-Hamdeh, Smain Bezzina, Ali Abdollahi, Arash Karimipour, Ferial Ghaemi, Dumitru Baleanu
Summary: The study examined the effects of different concentrations of silver nanoparticles on pool boiling inside deionized water, finding that adding silver nanoparticles can reduce the boiling heat transfer coefficient under certain conditions. Additionally, increasing the concentration can decrease deviations in the boiling heat transfer coefficient at low heat fluxes and increase it at high heat fluxes.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Mahsa Mohammadi, Milad Massoudifarid, Mohammad Hojaji, Arash Karimipour, Jungho Hwang, Massoud Massoudi Farid
Summary: In this study, particle resolved calculations were used to investigate the laminar, incompressible, unsteady oscillatory flow and convective heat transfer of nanofluid around a porous cuboid. The effects of various factors such as Reynolds number, volume fraction of nanoparticles, aspect ratio of the cuboid, Darcy number and inlet velocity profile were examined. The results demonstrated that increasing Reynolds number enhanced thermal performance, increasing volume fraction of nanoparticles increased Nusselt number but also led to a stronger increase in pressure drop coefficient, and increasing aspect ratio of the cuboid improved both heat transfer and pressure drop coefficient. The optimal frequency for heat transfer and pressure drop was found to be 9.
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
(2022)
Article
Physics, Multidisciplinary
Nidal H. Abu-Hamdeh, Khaled O. Daqrouq, Arash Karimipour, Osama K. Nusier
Summary: This study aims to find the optimized volume fraction of hydroxyapatite bio-ceramic and its composite in human blood plasma and investigate its potential application in relieving tooth thermal pain. The results show that time has an effect on the heat transfer rate in simulated body fluid solution.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Energy & Fuels
Muhyaddin J. H. Rawa, Nidal H. Abu-Hamdeh, Arash Karimipour, Osama K. Nusier, Ferial Ghaemi, Dumitru Baleanu
Summary: The study investigated the impact of phase change material on walls and roofs in Jeddah, Saudi Arabia, showing that adding phase change material to the western wall and roof can lead to energy savings.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Behzad Vahedi, Ehsan Golab, Arsalan Nasiri Sadr, Kambiz Vafai
Summary: The study analyzed the effectiveness of using a glass cover in a parabolic trough collector system to reduce heat losses at low Reynolds numbers. Considering temperature-dependent properties of the oil can greatly reduce the friction factor in the system.
APPLIED THERMAL ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Xiaoluan Zhang, Xinni Liu, Xifeng Wang, Shahab S. Band, Seyed Amin Bagherzadeh, Somaye Taherifar, Ali Abdollahi, Mehrdad Bahrami, Arash Karimipour, Kwok-Wing Chau, Amir Mosavi
Summary: The dynamic viscosity of CuO/liquid paraffin nanofluids was obtained experimentally, and different methods were modeled and compared to predict the viscosity. Feed-Forward Neural Networks (FFNNs) and Recursive Least Squares (RLS) Fuzzy model were found to be the most effective methods for viscosity prediction.
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
(2022)
Article
Green & Sustainable Science & Technology
Saeed Aghakhani, Masoud Afrand, Arash Karimipour, Rasool Kalbasi, Mohammad Mehdi Razzaghi
Summary: This article presents a modeling study on the cooling of solar panels using a copper tube. The study considers various variables such as tube diameter, number of loops, and flow rate to optimize the performance of the solar panels. The results indicate the conditions that result in the highest electrical efficiency, thermal efficiency, and overall efficiency.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Physical
Mohamad Shahgholi, Arash Karimipour, Pouya Firouzi, Omid Malekahmadi, Majid Ghashang, Nasier Saadoon, Noor H. Obaid, Shaghayegh Baghaei
Summary: With advances in thermal science, this research focuses on the development of biomedical liquid-flow devices, specifically in the field of dental implant surgery. The study investigates the application of a reinforced hydroxyapatite and titanium dioxide composite in dental implants. Characterization tests and heat transfer investigations were conducted, and an artificial neural network model was trained to predict heat transfer in nanofluids. The research demonstrates that the hydroxyapatite-ethanolamine-titanium dioxide composite shows acceptable heat transfer and physical properties for dental implant applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Navid Habibollahi, Ali Abdollahi, Arash Karimipour, Davood Toghraie, Sobhan Emami
Summary: This study investigated the combustion behavior of AlH3 structures coated with various atomic coatings in a liquid oxygen environment. The results showed that adding atomic coatings improved the combustion behavior, increasing the potential energy rates and decreasing the combustion time of the simulated structures. Different coatings resulted in changes in temperature and the number of permeated oxygen atoms.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Multidisciplinary
Mohamad Shahgholi, Pouya Firouzi, Omid Malekahmadi, Sepideh Vakili, Arash Karimipour, Majid Ghashang, Woorod Hussain, Hawraa A. Kareem, Shaghayegh Baghaei
Summary: This study aims to improve the mechanical and thermal properties of SiO2 dental composites by incorporating reinforced-hydroxyapatite nano-powder. The results demonstrate that the addition of hydroxyapatite significantly enhances the mechanical properties and thermal conductivity of the composites.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Energy & Fuels
Ahmad H. Milyani, Elias M. Salilih, Mohammed N. Ajour, Hesham A. Alhumade, Nidal H. Abu-Hamdeh, Arash Karimipour
Summary: By 2050, renewables are expected to account for 70% of electricity generation, with solar energy leading the way. The study focuses on a concrete solar plant that utilizes solar cells and battery systems to generate electricity. A heat exchanger model is developed to analyze the heat transfer characteristics of melted salt and steam/water. The results show that battery cooling is effective under certain conditions.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Elias M. Salilih, Nidal H. Abu-Hamdeh, Ahmed Khoshaim, Arash Karimipour
Summary: This paper investigates the transient thermal performance of a single u-tube vertical ground heat exchanger using n-octadecane PCM material as a backfill grout material. The analysis is performed using the Crank-Nicolson finite difference numerical method, and the transient thermal characteristics of the battery borehole heat exchanger are presented.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Mohammed N. Ajour, Ahmad H. Milyani, Nidal H. Abu-Hamdeh, Meshari A. Al-Ebrahim, Arash Karimipour
Summary: This paper investigates the impact of phase change materials on the thermal management system of lithium-ion batteries and presents numerical analysis results. The findings include the decrease of PCM melt volume fraction over time and the influence of different distances between battery rows on temperature and PCM melt volume fraction.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Chemical
Ri Zhang, Shasha Zhang, Mengyan Ding
Summary: A thin liquid film method is proposed to evaluate sand erosion in annular flow. This method considers the direct interaction between the liquid film and gas core, as well as the entrainment and deposition of droplets. The erosion rate is calculated by considering the effects of liquid entrainment and particle velocity decay. The method is fully verified by comparing with experimental data.
Article
Engineering, Chemical
Yu Suo, Xianheng Su, Wenyuan He, Xiaofei Fu, Zhejun Pan
Summary: This research investigates the mechanical properties of sandstone-shale composite through orthogonal experimental method and discrete element simulation. The results show that different lithologies and thickness ratios can affect the strength and fracture mode of the composite rock samples.
Article
Engineering, Chemical
Maurizio Troiano, Andrea El Hassanin, Roberto Solimene, Alessia Teresa Silvestri, Fabrizio Scala, Antonino Squillace, Piero Salatino
Summary: This study investigates the potential of Fluidized Bed Finishing (FBF) for square flat AlSi10Mg specimens manufactured via Laser-Powder Bed Fusion (L-PBF) additive manufacturing technology. The results show that good finishing can be achieved using rotation-assisted tests, with a maximum reduction of surface roughness by 67%. Steel particles are found to be the most effective bed material.
Review
Engineering, Chemical
Ningbo Song, Wanzhong Yin, Jin Yao
Summary: Seawater's dissolved salts and minerals have various effects on the flotation process, including influencing the characteristics and behavior of flotation factors, as well as affecting the surface of sulfide minerals. In most cases, seawater has adverse effects on the flotation of sulfide minerals, but these effects can be mitigated by adjusting the reagents.
Article
Engineering, Chemical
Kaiqiao Wu, Shuxian Jiang, Victor Francia, Marc-Olivier Coppens
Summary: In rectangular and cylindrical annular fluidized beds, pulsating gas flow can create regular bubble patterns, overcoming challenges seen in conventional units. This study provides new opportunities for modularization of fluidized bed operations.
Article
Engineering, Chemical
Shuo Li, Huili Zhang, Jan Baeyens, Miao Yang, Zehao Li, Yimin Deng
Summary: The paper assesses the behavior of cohesive Geldart C-type particles when fluidized by air with the aid of vibration. It determines that mechanical vibration is a simple and effective method to improve the fluidity of cohesive particles during fluidization.
Article
Engineering, Chemical
Zhenfei Feng, Qingyuan Zhang, Shanpan Liang, Zhenzhou Li, Fangwen Guo, Jinxin Zhang, Ding Yuan
Summary: A new micro/mini-channel heat sink (MCHS) with a combined structure of longitudinal and transverse vortex generators is designed, using Al2O3 nanofluid as the working medium. The study explores the effects of transverse vortex generator shape and longitudinal vortex generator angle on the hydraulic and thermal characteristics, comprehensive performance, entropy generation, and exergy efficiency. The results show that the triangular transverse vortex generator improves the comprehensive performance and exergy efficiency. Combined with the longitudinal vortex generator, the MCHS achieves the best comprehensive performance, entropy generation, and exergy efficiency when the Reynolds number is 742.
Article
Engineering, Chemical
Kostas Giannis, Christoph Thon, Guoqing Yang, Arno Kwade, Carsten Schilde
Summary: This study presents a 3D convolutional neural network (3D-CNN) methodology for generating realistic 3D models of particles. The method trains on 2D projections of particle images to predict their 3D shapes, and evaluates the accuracy of the predictions using Fourier shape descriptors (FSDs). This methodology has wide applications in particle shape analysis.
Article
Engineering, Chemical
Zheng-qing Zhou, Lu-jia Chai, Yu-long Zhang, Ya-bin Wang, Ze-chen Du, Tian-yi Wang, Yu-zhe Liu
Summary: The dynamic oxidation and shell-breaking processes of aluminum nanoparticles (ANPs) during heating were studied using in situ transmission electron microscopy. The results revealed that the changes in shell thickness can be divided into three stages, and the active aluminum content of ANP decreased before shell-breaking.
Article
Engineering, Chemical
Fulei Chen, Huaqing Ma, Zihan Liu, Lianyong Zhou, Yongzhi Zhao
Summary: A particle breakage model based on the particle replacement scheme, using the polyhedral model to describe particles, is proposed in this work to accurately describe the breakage of a large number of particles. Additionally, a fast-cutting algorithm is proposed to reproduce the size distribution of progeny particles determined by the breakage model. The validation and simulation results show satisfactory accuracy, efficiency, and stability of the algorithm.
Review
Engineering, Chemical
Matteo Errigo, Christopher Windows-Yule, Massimiliano Materazzi, Dominik Werner, Paola Lettieri
Summary: Gas-solid fluidized-bed systems have advantages in terms of chemical reaction efficiency and temperature control, making them widely used in industrial applications. However, the design, scale-up, and optimization of these complex units are limited by the lack of deep physical understanding. Non-invasive and non-intrusive diagnostic techniques provide a way for researchers to study these systems without affecting the flow field or directly contacting the medium under study.
Article
Engineering, Chemical
Saeed Fateh, Mohammad Behshad Shafii, Mohammad Najafi, Cyrus Aghanajafi
Summary: Applying a magnetic field to ferrofluids alters their flow characteristics and enhances heat transfer. Through visualization and quantitative investigation, it is found that the magnetic field influences the flow patterns and velocity profiles, improving fluid mixing and vorticity magnitude.
Article
Engineering, Chemical
Lei Gao, Bingbing Wei, Xiaochuan Hu, Zaifeng Yao, Yiwen Fang, Xuejian Gao
Summary: In this study, a numerical model of sand triaxial test was established using discrete element software PFC3D, and an indoor triaxial test was conducted to calibrate the numerical model. The influence of microscopic parameters on the macroscopic mechanical response of sand was analyzed. The results showed that the friction coefficient had the greatest impact on the peak strength and residual strength of the sand's stress-strain curve, and it was positively correlated. The normal tangential stiffness ratio was negatively correlated, while the porosity and boundary flexibility stiffness had minimal influence on it.
Article
Engineering, Chemical
Xuan Liu, Jie Gong, Kai Jiang, Xiaojuan Lai, Yu Tian, Kang Zhang
Summary: This study aimed to improve the performance of lignite coal water slurries (CWSs) by synthesizing a series of three-arm amphiphilic block copolymers. By controlling the relative molecular weight, hydrophilic/hydrophobic ratio, and ionic group content, the apparent viscosity of CWSs was significantly reduced and the static stability was improved. Thermogravimetric testing and XPS analysis were conducted to reveal the mechanism behind the improved performance.
Article
Engineering, Chemical
Lanka Dinushke Weerasiri, Daniel Fabijanic, Subrat Das
Summary: Fluidization at low pressure offers significant benefits for the fine chemical industry. This study investigates the behavior of bubbles and bed expansion under low pressure conditions. It is found that lower pressure leads to larger bubbles, increased bubble quantity, and higher aspect ratio. The predictability is affected by the inhomogeneous fluidization, but low pressure fluidization can generate similar bubble sizes with lower fluidizing mass compared to atmospheric pressure.
