Convective heat transfer
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A review on turbulent flow over rough surfaces: Fundamentals and theories Open
Surface roughness can significantly influence the fluid dynamics and heat transfer in convective flows by inducing perturbations in the velocity profile which affect surface drag, turbulent mixing and heat transfer. While surface roughness…
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Unsteady Casson nanofluid flow over a stretching sheet with thermal radiation, convective and slip boundary conditions Open
In this paper we report on combined Dufour and Soret effects on the heat and mass transfer in a Casson nanofluid flow over an unsteady stretching sheet with thermal radiation and heat generation. The effects of partial slip on the velocity…
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Theoretical Study of Convective Heat Transfer in Ternary Nanofluid Flowing past a Stretching Sheet Open
A new theoretical tri-hybrid nanofluid model for enhancing the heat transfer is presented in this article. This model explains the method to obtain a better heat conductor than the hybrid nanofluid. The tri-hybrid nanofluid is formed by su…
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Thermal radiation impact on MHD heat transfer natural convective nano fluid flow over an impulsively started vertical plate Open
A numerical model is employed for the nanofluid flow and heat transfer from an infinite vertical plate in the existence of a magnetic field, thermal radiation and viscous dissipation. The solution of the basic governing equations was obtai…
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Performance analysis of a plate heat exchanger using various nanofluids Open
In this paper, a corrugated plate heat exchanger in solar energy systems is used to investigate heat transfer and fluid flow characteristics of various nanofluids. By adding various nanoparticles (Al2O3-30 nm, SiC-40 nm, CuO-30 nm and Fe3O…
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Novel usage of the curved rectangular fin on the heat transfer of a double-pipe heat exchanger with a nanofluid Open
The convection heat transfer in a countercurrent double-tube heat exchanger with various fins in a turbulent flow is investigated. The suitable heating or cooling process of fluids is the effective use of the double-pipe heat exchanger. We…
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Thermophysical properties of graphene-based nanofluids Open
Heat transfer operations are very common in the process industry to transfer a huge amount of thermal energy, i.e., heat, from one fluid to another for different purposes. Many fluids are used as heat transfer fluid (HTF), in which water i…
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The status of the research on the heat transfer deterioration in supercritical fluids: A review Open
Nowadays, both experimental and computational research on the turbulent convective heat transfer to supercritical fluids is particularly active, especially because the actual poor comprehension and prediction of the possible heat transfer …
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Traction Motor Cooling Systems: A Literature Review and Comparative Study Open
More efficient cooling systems are an enabler for the increase in power-density in an electric traction motor. Contemplating to existing reviews, this paper presents a comprehensive collection of heat transfer mechanisms for the different …
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Numerical modeling of the hydrodynamic stability in vertical annulus with heat source of different lengths Open
A numerical investigation of natural convection heat transfer stability in cylindrical annular with discrete isoflux heat source of different lengths is carried out. The adiabatic unheated portions and the discrete heat source are mounted …
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Case study of MHD blood flow in a porous medium with CNTS and thermal analysis Open
This articles deals with unsteady MHD free convection flow of blood with carbon nanotubes. The flow is over an oscillating vertical plate embedded in a porous medium. Both single-wall carbon nanotubes (SWCNTs) and multiple-wall carbon nano…
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Fluid flow and heat transfer of porous TPMS architected heat sinks in free convection environment Open
Heat dissipation in electronic devices is challenging due its limited size and cooling space constraint. Implementing Triply Periodic Minimal Surfaces (TPMS)-based cellular structures could enhance the thermal exchange mechanism due to the…
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A comprehensive review on natural convection flow and heat transfer Open
Purpose The purpose of this paper is to carry out a comprehensive review of some latest studies devoted to natural convection phenomenon in the enclosures because of its significant industrial applications. Design/methodology/approach Geom…
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Heat transfer effectiveness characteristics maps for additively manufactured TPMS compact heat exchangers Open
Increased power density in modern miniaturized electronics caused difficulty in keeping electronic performance effective. This challenge leads to the search for high-performance compact heat exchanger as one of the thermal management solut…
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Temperature field model in surface grinding: a comparative assessment Open
Grinding is a crucial process in machining workpieces because it plays a vital role in achieving the desired precision and surface quality. However, a significant technical challenge in grinding is the potential increase in temperature due…
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A survey on experimental and numerical studies of convection heat transfer of nanofluids inside closed conduits Open
Application of nanofluids in heat transfer enhancement is prospective. They are solid/liquid suspensions of higher thermal conductivity and viscosity compared to common working fluids. A number of studies have been performed on the effect …
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Theory of transformation thermal convection for creeping flow in porous media: Cloaking, concentrating, and camouflage Open
Heat can transfer via thermal conduction, thermal radiation, and thermal convection. All the existing theories of transformation thermotics and optics can treat thermal conduction and thermal radiation, respectively. Unfortunately, thermal…
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Adverse effects of a hybrid nanofluid in a wavy non-uniform annulus with convective boundary conditions Open
The presented investigation theoretically studies the physical characteristics of a two-dimensional incompressible hybrid nanofluid in a non-uniform annulus where the boundaries are flexible.
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Intensified convective heat transfer using ZnO nanofluids in heat exchanger with helical coiled geometry at constant wall temperature Open
The present work deals with the experimental determination of enhancement in the heat transfer using ZnO nanofluid in helical copper tube heat exchanger at constant wall temperature. ZnO nanoparticles were prepared with aid of ultrasonic i…
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Second Grade Bioconvective Nanofluid Flow with Buoyancy Effect and Chemical Reaction Open
This study mainly concerns with the examination of heat transfer rate, mass and motile micro-organisms for convective second grade nanofluid flow. The considered model comprises of both nanoparticles as well as gyrotactic micro-organisms. …
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New generalized expressions for forced convective heat transfer coefficients at building facades and roofs Open
Previous research indicated that the surface-averaged forced convective heat transfer coefficient (CHTC) at a windward building facade can vary substantially as a function of building width and height. However, existing CHTC expressions ge…
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Numerical Scrutinization of Darcy-Forchheimer Relation in Convective Magnetohydrodynamic Nanofluid Flow Bounded by Nonlinear Stretching Surface in the Perspective of Heat and Mass Transfer Open
The aim of this research is mainly concerned with the numerical examination of Darcy-Forchheimer relation in convective magnetohydrodynamic nanofluid flow bounded by non-linear stretching sheet. A visco-elastic and strictly incompressible …
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Numerical Investigation of Forced Convective Heat Transfer and Performance Evaluation Criterion of Al2O3/Water Nanofluid Flow inside an Axisymmetric Microchannel Open
Al2O3/water nanofluid conjugate heat transfer inside a microchannel is studied numerically. The fluid flow is laminar and a constant heat flux is applied to the axisymmetric microchannel’s outer wall, and the two ends of the microchannel’s…
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Heat and mass transfer in radiative MHD Carreau fluid with cross diffusion Open
Numerical investigation is carried out for analyzing the heat and mass transfer in Carreau fluid flow over a permeable stretching sheet with convective slip conditions in the presence of applied magnetic field, nonlinear thermal radiation,…
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Numerical modelling of convective heat transport by air flow in permafrost talus slopes Open
Talus slopes are a widespread geomorphic feature in the Alps. Due to their high porosity a gravity-driven internal air circulation can be established which is forced by the gradient between external (air) and internal (talus) temperature. …
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Correct interpretation of nanofluid convective heat transfer Open
Engineers and scientist have a long tradition in trying to improve the thermophysical properties of convective heat carriers such as water and transformer oil. Technological developments of the last decades allow the dispersion of particle…
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Unsteady MHD Mixed Convection Slip Flow of Casson Fluid over Nonlinearly Stretching Sheet Embedded in a Porous Medium with Chemical Reaction, Thermal Radiation, Heat Generation/Absorption and Convective Boundary Conditions Open
Numerical results are presented for the effect of first order chemical reaction and thermal radiation on mixed convection flow of Casson fluid in the presence of magnetic field. The flow is generated due to unsteady nonlinearly stretching …
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Thermal Performance and Viscosity of Biologically Produced Silver/Coconut Oil Nanofluids Open
In this work, thermal conductivity, viscosity, and boiling heat transfer coefficient of a biologically produced nano-coolant were experimentally quantified.The nanoparticles were produced from silver nitrate via the plant extraction method…
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MHD Natural Convection Flow of Casson Nanofluid over Nonlinearly Stretching Sheet Through Porous Medium with Chemical Reaction and Thermal Radiation Open
In the present work, the effects of chemical reaction on hydromagnetic natural convection flow of Casson nanofluid induced due to nonlinearly stretching sheet immersed in a porous medium under the influence of thermal radiation and convect…
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Nonlinear thermal radiation in flow induced by a slendering surface accounting thermophoresis and Brownian diffusion Open
Our attention here in this research is on scrutinizing the nonlinear convection characteristics in a flow induced by a slendering surface. Flow expression is developed through electrically conducting Williamson nanomaterial. Nonlinear form…