Journal of Nanofluids最新文献_第10页

Thermal Diffusion and Diffusion Thermo Effects on Chemically Reacting Nanofluid Flow Towards A Vertical Cone Filled by Porous Medium 化学反应纳米流体向多孔介质垂直锥流动的热扩散和扩散热效应

IF 4.1

Journal of Nanofluids Pub Date : 2023-06-01 DOI: 10.1166/jon.2023.2036

M. Sathyanarayana, T. R. Goud

{"title":"Thermal Diffusion and Diffusion Thermo Effects on Chemically Reacting Nanofluid Flow Towards A Vertical Cone Filled by Porous Medium","authors":"M. Sathyanarayana, T. R. Goud","doi":"10.1166/jon.2023.2036","DOIUrl":"https://doi.org/10.1166/jon.2023.2036","url":null,"abstract":"Nano particles, chemical reactions, and porous media are all used in this study to look at how thermal diffusion in addition diffusion thermo work together to affect liquid that is immiscible, slurries, but instead conducts electricity flow toward a vertical cone. There is a concentration\u0000 equation and an energy equation for this question. There are thermal diffusion and chemical reaction effects in both of these equations. It is done by making use of correspondence transformations make governing dynamic system with optimization algorithms of the flow into Algebraic calculations\u0000 that are quasi, which then statistically solved by means of the Rung-Kutta method, there are graphs in the findings and discussion section that show how different engineering factors can affect speed, features of temperature moreover concentration. Furthermore, consequences about these factors\u0000 Nu and Sh statistics for skin friction quantity also discussed and as seen in tables. By comparing present results to data that has already been published, we can see that they are very accurate. Increases with in Brownian motion attribute as well as thermal diffusion attribute\u0000 significantly raise its density boundary layer. It is indeed worth noting that as solute concentration as the condensation variable is increased, the penetration depth declines. That’s for the reason that the compound genomic dispersion decreases as the temperature rises. Kr as\u0000 a result, values pertaining to Dufour numeral rise, Temperature profiles are similarly rises. Expansion Enhanced Nano fluid intensity dispersion as well as expanded the Thermal diffusion attribute reverse effect in the situation of Brownian locomotion effect, can be seen. These concentration\u0000 profiles are increasing with rising values of Soret number parameter.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45338893","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}

引用次数: 0

Separation Phenomenon in a Forced Convection Non-Similar Externally Retarded Nanofluid Flow 强迫对流非相似外部阻滞纳米流体流中的分离现象

IF 4.1

Journal of Nanofluids Pub Date : 2023-06-01 DOI: 10.1166/jon.2023.2017

A. Mehmood, M. Usman, S. Munawar, N. Saleem

{"title":"Separation Phenomenon in a Forced Convection Non-Similar Externally Retarded Nanofluid Flow","authors":"A. Mehmood, M. Usman, S. Munawar, N. Saleem","doi":"10.1166/jon.2023.2017","DOIUrl":"https://doi.org/10.1166/jon.2023.2017","url":null,"abstract":"The study of heat transfer phenomena in non-similar flow of nanofluid is the subject of this investigation. The external retarded flow past a flat plate is considered which does not allow the self-similarity solution. To enhance the heat transfer rate nanofluid has been considered instead\u0000 of the pure fluid. The nanoparticles of Aluminum Oxide are disseminated in the Water, being base fluid, to form the nanofluid. The consideration of nanofluid results in a substantial heat transfer augmentation along with the skin friction coefficient and both are observed to be further enhanced\u0000 with higher concentration of nanoparticles. Almost 48% and 36% of gain in heat transfer rate and skin friction coefficient, respectively, have been observed in the 20% nanoparticle concentration at the downstream location where separation is occurring. However, a 67% gain in skin friction\u0000 coefficient is observed for other downstream locations. The effect of nanoparticle concentration on the separation phenomena has also been investigated carefully and it is found that the concentration of nanoparticle does not delay the flow separation in this case. The effect of nanoparticle\u0000 concentration on velocity and temperature profiles and their gradients is depicted and discussed through several graphs.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43097183","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}

引用次数: 0

Heat Generation and Thermal Radiation Effects on Magneto Hydrodynamics Non Newtonian Casson Nanofluid with Gyro Tactic Microorganisms Over a Plate, Stagnation and Wedge Through Porous Media 磁流体力学中的热产生和热辐射效应——板上、停滞和楔形多孔介质中具有陀螺触觉微生物的非牛顿Casson纳米流体

IF 4.1

Journal of Nanofluids Pub Date : 2023-06-01 DOI: 10.1166/jon.2023.1933

D. Hymavathi, M. Ramachandru, M. Reddy, N. Kishan

{"title":"Heat Generation and Thermal Radiation Effects on Magneto Hydrodynamics Non Newtonian Casson Nanofluid with Gyro Tactic Microorganisms Over a Plate, Stagnation and Wedge Through Porous Media","authors":"D. Hymavathi, M. Ramachandru, M. Reddy, N. Kishan","doi":"10.1166/jon.2023.1933","DOIUrl":"https://doi.org/10.1166/jon.2023.1933","url":null,"abstract":"The numerical interventions of two dimensional steady flow of MHD Non-Newtonian nanofluids containing the gyro-tactic microorganisms through porous media over a plate, wedge, and stagnation point are highlighted in this paper. Mainly the Peclet number, bioconvection, Brownian motion,\u0000 thermophoresis, and heat generation impacts are addressed to consolidate thermal and nanofluid concentration conservative equations with passively controlled boundary conditions for three different geometrical conditions of flow over a plate, wedge, and stagnation point. By considering the\u0000 impacts of the varying pertinent parameters, namely thermophoresis, Brownian motion, Prandtl number, heat generation, chemical reaction, bio convectional and magnetic parameters, results are analysed graphically for the momentum, temperature, nanoparticle volume fractions, and the density\u0000 of motile microorganisms profile, as well as the local Nusselt and motile microorganism numbers. Relevant similarity transformations are used to obtain the system of ordinary differential equations and the equations are solved numerically by using Bvp4c via MATLAB based on the shooting technique.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44723664","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}

引用次数: 0

Thermo-Hydraulic Phenomena of Water-Al2O3 Nanofluid Flow Over a Rectangular Channel with Trapezoidal Obstacles 水-Al2O3纳米流体在具有梯形障碍物的矩形通道上流动的热工水力学现象

IF 4.1

Journal of Nanofluids Pub Date : 2023-06-01 DOI: 10.1166/jon.2023.2027

S. Saha, V. R. Prasad, O. A. Bég, A. Das

{"title":"Thermo-Hydraulic Phenomena of Water-Al2O3 Nanofluid Flow Over a Rectangular Channel with Trapezoidal Obstacles","authors":"S. Saha, V. R. Prasad, O. A. Bég, A. Das","doi":"10.1166/jon.2023.2027","DOIUrl":"https://doi.org/10.1166/jon.2023.2027","url":null,"abstract":"Numerical simulations of water-Al2O3 nanofluid flow in a rectangular channel with two trapezoidal obstacles have been studied, which has rmarkable effect in various engineering applications. The governing equations have been solved using SIMPLEC algorithm and FLUENT\u0000 software has been used to visualize the simulation results. Motivation of this work is to examine the dynamic behavior of laminar water-Al2O3 nanofluid flow for volume fraction, ψ = 0%, 2%, and 4%. The present study analyzes different hydrothermal flow phenomena\u0000 with the variation in obstacle height and ψ. Moreover, the simulation results, such as the profiles of velocity, normalized temperature (θ), poiseuille number (CfRe), local Nusselt number (Nu), average Nusselt number (Nuavg)\u0000 and friction factor (f) have been portrayed with the variations in ψ and Reynolds number (Re). It has been observed that the obstacles increase the convective heat transfer (HT) significantly. At Re = 100, for all the configurations it has been found that the\u0000 velocity profile become more pronounced for ψ = 4% as compared to ψ = 0%. A linear relationship has been found between the values of f and ψ. It is also found that an increase in Re increases vortex length. It is also shown that variation of volume\u0000 fraction (ψ) and obstacle height resulted in an indicative change in the normalized temperature and velocity along the center line. In type-1 obstacle configuration, it has been found that Nuavg increases by 6.6% at ψ = 2%, and the same increases by\u0000 10.73% at ψ = 4% as compared to that at ψ = 0%. Moreover, it has been found that in type-2 obstacle configuration, value of f increases by approximately 7.9% at ψ = 2% and 13.84% at ψ = 4% as compared to that at ψ = 0%.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44446001","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}

引用次数: 0

Mathematical Modelling of Magnetohydrodynamic Nanofluid Flow with Chemically Reactive Species and Outer Velocity Towards Stretching Cylinder 具有化学反应物质和外速度的纳米流体向拉伸圆柱体流动的数学模型

IF 4.1

Journal of Nanofluids Pub Date : 2023-05-01 DOI: 10.1166/jon.2023.1951

Vinita, Parveen Kumar, Vikas Poply

{"title":"Mathematical Modelling of Magnetohydrodynamic Nanofluid Flow with Chemically Reactive Species and Outer Velocity Towards Stretching Cylinder","authors":"Vinita, Parveen Kumar, Vikas Poply","doi":"10.1166/jon.2023.1951","DOIUrl":"https://doi.org/10.1166/jon.2023.1951","url":null,"abstract":"This article investigate the impact of magnetohydrodynamic nanofluid past a stretching cylinder with chemical reactive species. The momentum, energy and concentration equations are represented by a set of partial differential equations which are moulded into a system of ordinary differential equations using mathematical modelling of the physical problem. After adopting the Runge Kutta Fehlberg approach, the moulded equations are solved using the shooting procedure. To study the effects of various fluid parameters, a parametric analysis was performed. Brownian motion and thermophoresis were investigated in the appealing pattern. The effects of important fluid characteristics, such as outer velocity, chemical reaction, thermophoresis, Lewis number, Brownian motion on concentration, temperature, and velocity have been investigated and shown in graphically and tabulated forms. The core findings of this work is that concentration of the nanofluid decreasing with more reacting species and rate of heat transfer is significantly controlled by outer velocity parameter and magnetic parameter which is very useful in manufacturing processes.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64647914","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}

引用次数: 2

Linear and Quadratic Radiation of Dynamical Non-Fourier Flux in a Disk Flow with the Suspension of Hybrid Nanoparticles 混合纳米颗粒悬浮盘状流中动态非傅立叶通量的线性和二次辐射

IF 4.1

Journal of Nanofluids Pub Date : 2023-04-01 DOI: 10.1166/jon.2023.1994

Sathy Suresh, S. Shanthi, A. G. Madaki, M. Sathish Kumar, C. Raju

引用次数: 0

A Review Study of Numerical Simulation of Lid-Driven Cavity Flow with Nanofluids 盖驱动腔体流动纳米流体数值模拟研究进展

IF 4.1

Journal of Nanofluids Pub Date : 2023-04-01 DOI: 10.1166/jon.2023.1930

Mustaque Hussain Borbora, B. Vasu, Ali J. Chamkha

{"title":"A Review Study of Numerical Simulation of Lid-Driven Cavity Flow with Nanofluids","authors":"Mustaque Hussain Borbora, B. Vasu, Ali J. Chamkha","doi":"10.1166/jon.2023.1930","DOIUrl":"https://doi.org/10.1166/jon.2023.1930","url":null,"abstract":"Perhaps the most deliberated fluid problem in the field of Computational Fluid Dynamics is the lid driven cavity flow whose simple geometry is used to study the thermal behavior of many engineering applications such as cooling of electronic equipment, solar collectors, thermal storage\u0000 systems, food processing, solar ponds, crystal growth, lubrication technologies and cooling of electrical and mechanical components. Researchers have been devoting much of their time in order to discover innovative methods to enhance the thermal conductivity of conventional fluids. With the\u0000 development of nanotechnology, the concept of nanofluids has gained ground considerably as a new kind of heat transfer fluid. Nanofluid is a new kind of fluid with high thermal conductivity is a mixture of solid nanoparticles and a liquid. This review recapitulates the recent progress of the\u0000 various numerical methods that are used in predicting the influence of several parameters such as type of nanoparticle and host liquid, particle volume concentration, particle size and shape, Brownian diffusion and thermophoresis effect on hydrodynamic and thermal characteristics of convective\u0000 heat transfer using nanofluids in a lid driven cavity.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45807326","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}

引用次数: 1

Figures-of-Merit Analysis Using the Thermophysical Properties of Water and Ethylene Glycol Based Reduced Graphene Oxide/Nanodiamond Hybrid Nanofluids 基于水和乙二醇基还原氧化石墨烯/纳米金刚石杂化纳米流体热物理性质的优值分析

IF 4.1

Journal of Nanofluids Pub Date : 2023-04-01 DOI: 10.1166/jon.2023.1983

L. Syam Sundar, F. Shaik, Munaver Jaman Basheer Ahmed

{"title":"Figures-of-Merit Analysis Using the Thermophysical Properties of Water and Ethylene Glycol Based Reduced Graphene Oxide/Nanodiamond Hybrid Nanofluids","authors":"L. Syam Sundar, F. Shaik, Munaver Jaman Basheer Ahmed","doi":"10.1166/jon.2023.1983","DOIUrl":"https://doi.org/10.1166/jon.2023.1983","url":null,"abstract":"The water and ethylene glycol based stable rGO/nanodiamond hybrid nanofluids were prepared and used for thermophysical properties analysis. The thermophysical properties were measured experimentally at various particle loadings from 0.2% to 1.0% and various temperatures ranging from\u0000 20 to 60 °C. From the measured thermophysical properties the figures-of-merit were analyzed by assuming constant heat flux and turbulent boundary conditions by using different models, and also by assuming the hybrid nanofluids flows through a tube. Results indicate that the thermal conductivity\u0000 of water and ethylene glycol based hybrid nanofluids at Φ = 1.0% vol. is enhanced about 27.87% and 18.8% at 60 °C; viscosity of water and ethylene glycol based hybrid nanofluids at Φ = 1.0% vol. is also enhanced by 72.15% and 86.62% compared to their base fluids\u0000 at 20 °C. The density is also increased with an increase of particle loadings, whereas, the specific heat is decreased with a rise of particle loadings. Experimental thermophysical properties are fitted into regression equations by using multi linear regression method. The figures-of-merit\u0000 of all the prepared hybrid nanofluids show its value is less than one under the used particle loadings and temperatures.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43831155","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}

引用次数: 0

Analysis of Joule Heating and Chemical Reaction Effects in Electroosmosis Peristaltic Transport of Couple-Stress, Micropolar and Nanofluids 耦合应力、微极性和纳米流体电渗透蠕动传输中的焦耳加热和化学反应效应分析

IF 4.1

Journal of Nanofluids Pub Date : 2023-04-01 DOI: 10.1166/jon.2023.1963

K. V. Venugopal Reddy, M. Gnaneswara Reddy, G. Rami Reddy, O. Makinde

{"title":"Analysis of Joule Heating and Chemical Reaction Effects in Electroosmosis Peristaltic Transport of Couple-Stress, Micropolar and Nanofluids","authors":"K. V. Venugopal Reddy, M. Gnaneswara Reddy, G. Rami Reddy, O. Makinde","doi":"10.1166/jon.2023.1963","DOIUrl":"https://doi.org/10.1166/jon.2023.1963","url":null,"abstract":"Nanofluids have analysis of wide applications of energy technologies in recent times as the thermal amplification of several manufacturing industries. A mathematical model is developed to stimulate electrokinetic transfer through peristaltic pumping of couple-stress micropolar nanofluids\u0000 in a microchannel. The effects of Joule heating and chemical reaction have been considered. The remarkable properties of nanofluid are demonstrated by thermophoresis and Brownian motion characteristics. Thermophoresis has relevance in mass transport processes in many higher temperature gradient\u0000 operating systems. The highly non-linear partial differential equations into ordinary differential equations by using appropriate similarities transformations. The graphical estimates are presented for the axial velocity, spin velocity, temperature of nano fluid, concentration and pumping\u0000 characteristics. The outcomes of this study reveal the activation of Joule heating and chemical reaction effects in electroosmosis peristaltic transport of couple-stress, micropolar and nanofluids. This model is applicable to the study of chemical fraternization/separation procedures and bio\u0000 microfluidics devices for the resolution of diagnosis.","PeriodicalId":47161,"journal":{"name":"Journal of Nanofluids","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42298709","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}

引用次数: 4

Unsteady Magnetohydrodynamic (MHD) Cu–Al2O3/Water Hybrid Nanofluid Flow and Heat Transfer from an Exponentially Accelerated Plate 非定常磁流体动力学(MHD) Cu-Al2O3 /水混合纳米流体在指数加速板上的流动和传热

IF 4.1

Journal of Nanofluids Pub Date : 2023-04-01 DOI: 10.1166/jon.2023.1955

C. Sridevi, A. Sailakumari

引用次数: 1