Journal of Nanofluids最新文献

{"title":"Effects of Diffusion Thermo and Thermal Diffusion on an Unsteady MHD Dissipative Squeezing Flow of Casson Fluid Over Horizontal Channel in the Presence of Radiation and Chemical Reaction","authors":"Nagaraju Vuppala, Raja Shekar Mamidi","doi":"10.1166/jon.2024.2127","DOIUrl":"https://doi.org/10.1166/jon.2024.2127","url":null,"abstract":"This study analyses the impacts of Diffusion thermo and thermal diffusion on the magneto hydrodynamic (MHD) squeezing Casson fluid flow through a porous medium under the slip condition with viscous dissipation the presence of chemical reaction and thermal radiation. The flow is produced\u0000 when two plates are compressed together in close proximity to one another. Using similarity variables may successfully convert partial differential equations (PDEs) to ordinary differential equations (ODEs). The shooting technique was used to perform the numerical analysis, which entailed\u0000 solving the competent governing equations with dominating parameters for a thin liquid layer. This was done to determine the results of the study. It is essential to evaluate the numerical results in light of previously conducted research to validate the current answers. According to the results,\u0000 an increase in the distance between the two plates leads to a rise in the velocity and the wall shear stress. The velocity diminishes due to an increase in the Hartmann and Casson parameters, whereas the reverse behaviour has been observed in the case of temperature and concentration. The\u0000 opposite behaviour has been observed in temperature with increasing Diffusion thermo and thermal diffusion parameters.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140772017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Double Diffusive Convection with Cross-Diffusion Effects in Hybrid Nanoliquids in an Inclined Slot","authors":"M. Gayathri, S. Pranesh, P. Siddheshwar","doi":"10.1166/jon.2024.2117","DOIUrl":"https://doi.org/10.1166/jon.2024.2117","url":null,"abstract":"This novel study examines the effects of cross-diffusion, and nanoparticles on a hybrid nanoliquid undergoing double-diffusive convection in an inclined slot. The hybrid nanoliquid considered is unique and it contains a mixture of base liquid to which nanoparticles are suspended. The\u0000 thermophysical properties of the hybrid nanoliquid are calculated using phenomenological laws and mixture theory. The results are compared with the case of mono nanoliquid and hybrid nanoliquid with one base liquid and two nanoparticles. In order to study the convective system, the shooting\u0000 method along with Runge-Kutta 4th order method is employed, and the results are illustrated graphically. It is noticed that the solutal Rayleigh number, Soret parameter and inclination of the plates delay the onset of convection, while the Dufour parameter, diffusivity ratio, and the addition\u0000 of nanoparticles advance the onset of the convection.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140781407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermodynamic Analysis of Magnetized Carbon Nanotubes (CNTs) Conveying Ethylene Glycol (EG) Based Nanofluid Flow Through Porous Convergent/Divergent Channel in the Existence of Lorentz Force and Solar Radiation","authors":"Subhan Ullah, Amir Ali, Ikram Ullah, Muhammad Israr","doi":"10.1166/jon.2024.2131","DOIUrl":"https://doi.org/10.1166/jon.2024.2131","url":null,"abstract":"Due to higher thermal features, carbon nanotubes (CNTs) have significant uses in heating frameworks, medical, hyperthermia, industrial cooling, process of cooling in heat exchangers, electronic and pharmaceutical administration systems, heating systems, radiators, electrical, electronic\u0000 device batteries, and engineering areas. The main concern of present study is to inspect the EG based CNTs nanomaterials flow in a porous divergent/convergent channel with the application of Lorentz force. The Darcy-Forchheimer theory is utilized to investigate the nanofluid motion and thermal\u0000 features. Mathematical modeling is further developed by considering Joule heating, solar radiation and heat source. Ordinary differential equations (ODEs) are obtained by employing the proper transformations (obtained from symmetry analysis). The numerical computations are executed through\u0000 NDSolve technique using Mathematica tool. The upshots of distinct significant parameters on different profiles are displayed via numerical data and sketches. The major outcome is that, enhancement in nanoparticles volume fraction and in inertia coefficient escalate the nanofluids motion for\u0000 both divergent and convergent. Furthermore, drag forces exerted by the channel is more for higher porosity parameter and inertia coefficient. Also heat transfer rate is significantly enhances against radiation and heat source parameter and is more in case of stretching wall than the shrinking\u0000 one. Overall, the effect of MWCNT is about 3% is more than that of CWCNT.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140795232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Double Diffusion of Blood-Gold Carreau Nanofluid Using Partial Slip","authors":"J. Prathap Kumar, J. Umavathi, A. S. Dhone","doi":"10.1166/jon.2024.2152","DOIUrl":"https://doi.org/10.1166/jon.2024.2152","url":null,"abstract":"The investigation of double diffusive convection for the blood-gold Carreau nanofluid over an upper horizontal surface of a paraboloid of revolution (uhspr) with partial slip is the subject of this paper. It is assumed that the Carreau nanofluid corresponding to an infinite shear-rate\u0000 is zero. The regulating PDE’s are converted into ODE’s by using the appropriate transformations. The reduced system of ODE’s is solved by using the RK-4th order method with the help of collocation formula bvp4c defined in Matlab software. The numerical computations for emerging\u0000 parameters on the velocity, temperature, concentration, partial slip, etc. have been investigated for both shear-thinning and shear-thickening. The outcome of the study reveals that the velocity increases and temperature decreases with the rise in buoyancy parameters in both respects of small\u0000 value of partial slip λ = 0.1 and large magnitude of partial slip λ = 2 while dual effects on the concentration gradient is observed at the boundary and free stream. Furthermore, these findings are in perfect agreement with previously published work on special cases.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140781011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Melting Heat Transfer in Viscous Nanofluid Flow Including Micro-Organisms and Entropy Generation Due to an Inclined Exponentially Stretching Sheet","authors":"A. Olkha, Rahul Choudhary","doi":"10.1166/jon.2024.2122","DOIUrl":"https://doi.org/10.1166/jon.2024.2122","url":null,"abstract":"This study investigates melting heat transfer and entropy production in viscous nanofluid flow consisting of micro-organisms over an inclined exponentially stretching permeable sheet. The flow is considered via porous medium. Impacts of heat transport characteristics are invoked in\u0000 the energy equation. In concentration equation we have included chemical reaction impact. The regulating PDEs are transformed into nonlinear ODEs in non-dimensional form using adequate similarity transformation relations. The analytical solution of the problem is obtained utilizing HAM. Various\u0000 plots are drawn to exhibit impacts of the regulating parameters (Prandtl number, Porous medium parameter, Thermal Grashof number, Mass Grashof number, Micro-organism Grashof number, Thermophoresis parameter, Radiation parameter, Bio-convection Levis number, Brownian motion parameter, Chemical\u0000 reaction parameter, Suction parameter, Peclet number, and Melting parameter) occurred in the problem on relevant fields (flow, temperature and concentration distribution) and entropy production and discussed. Further values of significant physical quantities skin friction coefficient, Nusselt\u0000 number, Sherwood number, and motile microbes density computed using MATLAB based bvp4c function and HAM are displayed in tabular mode and found in excellent agreement. For validity of the results skin friction coefficient and Nusselt number values are compared to prior research, apparently\u0000 good agreement is found. The effect of melting surface parameter is found to reduce the fluid flow and temperature field. Entropy production lessens with rising values of slip parameters but effects of radiation and porous medium parameters are found to upsurge it. It is also noticed that\u0000 bioconvection Lewis number and Peclet number reduce the micro-organism density profile. Inclusion of entropy analysis is a novel feature of the study. The solution methodology also enriched the novelty of the investigation. The results of the study may be applied to improve the efficiency\u0000 of thermal, fluid flow and energy systems. This study may also find applications in bio-nano-coolant systems and heat transfer devices.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140795017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Review on Nano Fluid Production, Mathematical Modelling and Applications","authors":"K. R. Jahnavi, Ganesh Shridhar Hegde","doi":"10.1166/jon.2024.2138","DOIUrl":"https://doi.org/10.1166/jon.2024.2138","url":null,"abstract":"Recently, nano fluids have taken on a significant role in many human endeavours. A fluid called a nanofluid includes nanoparticles, also called nanoparticles. Colloidal suspensions of nanoparticles in a base fluid are what these fluids are made of. The numerous production procedures\u0000 and mathematical interpretation models for nanofluids are examined in this review study. Marangoni convection’s advantages, which enhance heat transfer and balance temperature distribution, are underlined. The effects of thermophoresis on surface tension as well as surface tension in\u0000 laminar natural convection are also discussed in this work. The characteristics of carbon nanotubes and their prospective medical uses are covered in the article. The study covers electrochemical double layer capacitors, which offer greater safety, longer cycle stability, and better power\u0000 densities. The study explores the impact of magnetic fields on entropy formation and natural convection in a hybrid nanofluid enclosure, revealing four distinct models based on thermal conductivity and viscosity correlations. The information review work is relevant. The review information\u0000 work is relevant to flow tracers, prosthetic heart valves, oil pipelines, chemical industry separation methods, and oil recovery.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140795755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"LBM Simulation of Free Convection Heat Transfer of Cu/Water Nanofluid in Inclined Cavity with Non-Uniform Heating Temperature Distribution","authors":"Walid Chelia, Abdelghani Laouer, E. Mezaache","doi":"10.1166/jon.2024.2135","DOIUrl":"https://doi.org/10.1166/jon.2024.2135","url":null,"abstract":"In the present study, natural convection of Cu/water nanofluid in an inclined square cavity has been investigated numerically using lattice Boltzmann method (LBM). The left wall of the cavity is maintained at a constant hot temperature, while the right wall is subjected to non-uniform\u0000 temperature distribution. The upper and lower walls are insulated. The fluid flow and heat transfer characteristics are investigated over a wide range of parameters, including Rayleigh numbers (Ra = 103, 104 and 105), solid volume fractions (Φ\u0000 = 0%, 2%, 4% and 6%), amplitude ratio (A = 0, 0.5 and 1) and phase deviations of sinusoidal temperature distribution (Φ = 0, π/4, π/2, 3π/4 and π). The results are presented graphically in the form of streamlines, isotherms and Nusselt\u0000 numbers for the different combinations of the considered parameters. The heat transfer rate inside the nanofluid increases as the Rayleigh number and the volume fraction of nanoparticles increase. Further, an increase in the amplitude ratio results in a decrease in the heat transfer rate,\u0000 with a reduction of up to 8.67% at A = 1. On the other hand, changes in the phase deviation of the sinusoidal temperature distribution lead to an increase in the heat transfer rate, with a surge of up to 32.04% observed at Φ = π.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140765129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Al2O3-Cu/Water Hybrid Nanofluid on Natural Convection in an Inverted T-Shaped Enclosure","authors":"Sangita Dey, B. V. Rathish Kumar","doi":"10.1166/jon.2024.2115","DOIUrl":"https://doi.org/10.1166/jon.2024.2115","url":null,"abstract":"In the present study, the effect of Al2O3-Cu/water hybrid nanofluid (HNF) flow, governed by modified Navier-Stokes equations coupled with energy conservation on heat and mass transfer due to the natural convection in an inverted T shape domain is investigated numerically\u0000 by solving coupled non-linear PDE model using finite element method. The effect of the governing parameters like source length, Rayleigh number (Ra), 1 ≤ Ra ≤ 104, breadth of the vertical tube, volume fraction of nanoparticle (Φ), 0 ≤ Φ\u0000 ≤ 0.01, 1 ≤ Pr ≤ 50, and aspect ratio (AR), 0.5 ≤ AR ≤ 2, etc. on Nusselt number has been analyzed and presented through tabulated values and Matlab plotting. Also, the flow and heat transfer sensitivity to the the governing parameters are depicted through\u0000 the streamline and isotherm contours.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140778279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic Heat Transfer in Enclosures: A Hybrid Nanofluids Review","authors":"Goutam Saha, Jiaul Haque Saboj, Preetom Nag, S. Saha","doi":"10.1166/jon.2024.2143","DOIUrl":"https://doi.org/10.1166/jon.2024.2143","url":null,"abstract":"This review aims to comprehensively explore the concepts of heat transfer (HT) and entropy generation (Egen) within cavities containing hybrid nanofluids (HN). Additionally, the review encompasses various enclosure shapes, such as triangle, square, rectangle, wave, trapezoid, hexagon,\u0000 octagon, semicircle, circle, cube, C-shaped, L-shaped, M-shaped, T-shaped, W-shaped, irregular shaped, and other types of cavity designs. Also, different types of hybrid nanoparticles such as silver-magnesium oxide, copper-aluminum oxide, multi-walled carbon nanotubes-iron oxide, copper-titanium\u0000 dioxide, silver-copper, aluminum oxide-titanium dioxide, carbon nanotubes-aluminum oxide, multi-walled carbon nanotubes-magnesium oxide, carbon nanotubes-iron oxide, carbon nanotubes-copper, aluminum oxide-silicon dioxide, aluminum oxide-silver, nanodiamond-cobalt oxide, etc., and base fluids\u0000 such as water, ethylene glycol, carboxymethyl cellulose, etc are presented in this research. In addition, a thorough analysis of the extensive literature underscores the significant influence of elements like blocks, obstacles, fins, or cylinders within cavities on both HT and Egen. These\u0000 findings carry substantial practical implications for the study of thermofluid systems.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140762639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Generalized Fourier and Fick’s Law of Electro-Osmotic MHD Two-Phase Flow of Dusty Hybrid Ferrofluid Through Inclined Microchannel","authors":"Dolat Khan, G. Ali, P. Kumam","doi":"10.1166/jon.2024.2118","DOIUrl":"https://doi.org/10.1166/jon.2024.2118","url":null,"abstract":"Numerous industries, including biology and medicine, stand to benefit greatly from the cutting-edge use of electro-osmotic MHD flow of hybrid Ferro fluid via a microchannel. To investigate the electroosmotic MHD flow of a hybrid Ferro fluid with dust particles, we use a microchannel\u0000 inclined vertically. We also take into account the magnetic field’s transverse component. The impacts of heat and mass transfer within this fluid system are the focus of this investigation. Partial differential equations are a powerful tool for modeling the aforementioned physical phenomena.\u0000 The classical system is further fractionalized into a nondimensional form by using suitable nondimensional variables, free of dimensions, the generalized Fourier transform, and Fick’s rule. The Caputo derivative is used as a starting point for generalizations. The analytical solutions\u0000 for the velocity (containing the hybrid Ferro fluid and dusty fluid), temperature, and concentration profiles are obtained using a mixture of Laplace and Fourier methods. The research looks at how things like temperature, stress (Grashof, Schmidt, and Prandtl numbers), and the dusty fluid\u0000 parameter affect one another. The concentration distributions are analyzed, and graphs are presented to help visualize the results. The average values for the Sherwood number, the heat transfer rate, and the coefficient of skin friction are provided. Notably, the fractional models provide\u0000 more leeway in finding workable solutions since they are more precise. All things considered, it seems that these strategies are quite beneficial. The hybrid Ferro fluid has the capacity to effectively modify the velocity boundary layer and has a greater heat transfer rate than both nanofluid\u0000 and conventional fluid.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140763815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}