# numerical study of flow and heat transfer in a molten fluxnumerical study of flow and heat transfer in a molten flux

### (PDF) Numerical simulation of effects of flow

Gurau et al. 7 developed 2D fluid flow in the channels but the density variation because of mass transport was neglected.Yuan et al. 13 studied a 3D model with heat transfer and gas flow using Darcy model but study was limited to a single channel of a PEM fuel cell.

Get Price### Numerical study of flow and heat transfer of water-Al2O3

Nov 15 2017 · Abstract. The present paper is a numerical study on heat transfer and pressure drop of a nanofluid including water as base fluid with Al 2 O 3 nanoparticles inside a square channel having an inner cylinder with and without fin under constant heat flux condition using two-phase Euler–Lagrange approach. Numerical investigation has been carried out for various combinations of base fluid

Get Price### Heat Transfer and Pressure Drop of Liquids in Tubes

Convective heat transfer of molten salt-based nanofluid in a receiver tube with non-uniform heat flux. Numerical study on convective heat transfer and friction characteristics of molten salts in circular tubes. Experimental study of single-phase flow and heat transfer in rectangular channels under uniform and non-uniform heating.

Get Price### (PDF) Numerical Study on the Corium Pool Heat Transfer

May 28 2020 · The stratified molten pool heat transfer experiment carried out by Royal Institute of Technology was analyzed in the paper and the solidified crust temperature and heat flux

Get Price### Natural Convection Heat Transfer in a Rectangular Pool

reactor vessel lower head during a severe accident. The heat transfer within the molten core material can be characterized by buoyancy-induced flows resulting from internal heating due to decay of fission products. The thermo-fluid dynamic characteristics of the molten pool depend strongly on the thermal boundary conditions.

Get Price### Characteristics of Fully Developed Flow and Heat Transfer

Nov 07 2013 · Present study focuses on numerical investigation of fully developed flow and heat transfer through three channels having sine-shaped triangle-shaped and arc-shaped wall profiles. All computations are performed at Reynolds number of 600.

Get Price### Heat Transfer and Pressure Drop of Liquids in Tubes

Convective heat transfer of molten salt-based nanofluid in a receiver tube with non-uniform heat flux. Numerical study on convective heat transfer and friction characteristics of molten salts in circular tubes. Experimental study of single-phase flow and heat transfer in rectangular channels under uniform and non-uniform heating.

Get Price### Numerical Heat Transfer and Fluid Flow

Numerical Heat Transfer and Fluid Flow Here is a self-contained straigh tforward treatment of the practical details involved in computational activity for numerical heat transfer and fluid flow analysis. Intended as an introduction to the field the book emphasizes physical significance rather than mathematical manipulation.

Get Price### Numerical investigation of flow and heat transfer in a

In the present contribution a numerical study of fluid flow and heat transfer performance in a pilot-scale multi-tubular fixed bed reactor for propylene to acrolein oxidation reaction is presented using computational fluid dynamics (CFD) method. Firstly a two-dimensional CFD model is developed to simulate flow behaviors catalytic oxidation reaction heat and mass transfer adopting porous

Get Price### Numerical Prediction of Fluid Flow and Heat Transfer in

Nov 15 2006 · A large amount of heat is deposited on the window and in the target during the course of nuclear reaction between the proton beam and the molten lead-bismuth eutectic (LBE) target. Simulations were carried out to predict the characteristics of the flow and temperature fields in the target module with a funnel-shaped flow guide and spherical

Get Price### EVALUATION OF PRESSURE EFFECT ON HEAT TRANSFER

Thus heat transfer coefficient at the metal- mold interface has a predominant effect on the rate of heat transfer. In some processes such as low pressure and die-casting the effect of pressure on molten metal will affect the rate of heat transfer at least at initial steps of solidification. In this study interfacial heat transfer

Get Price### NUMERICAL INVESTIGATION OF THE SPREADING AND

The effects of radiative heat transfer the temperature-dependence of the viscosity decay heat and initial temperature on the spreading of corium were investigated with a detailed discussion on the temperature profile viscosity and heat transfer. 2. NUMERICAL METHODS 2.1 VULCANO VE-U7 Test The spreading of ex-vessel corium was extensively

Get Price### NUMERICAL ANALYSIS OF COMBINED NATURAL

The purpose if this paper is to study the combined effects of surface radiation and heat generation on the flow and heat transfer in the cavity. The surface emissivity . H. and the internal Rayleigh number . Ra. I. are parameters to be varied. 2. Mathematical formulation . Details of the geometry are shown in

Get Price### Impact of Cattaneo-Christov heat flux in the flow over a

Aug 20 2015 · The analysis of boundary layer stretched flow accompanied with heat transfer has gained the interest of researchers and scientists due to their widespread applications in many areas of manufacturing industrial metallurgical and engineering phenomena. Moving surface into a cooling medium is a mathematical tool for the process of heat treatment. During this process metals are

Get Price### International Journal of Numerical Methods for Heat and

A numerical study has been conducted for the characteristics of the periodically fully developed turbulent flow and heat transfer in a channel with transverse opposite-positioned fins. The

Get Price### International Journal of Numerical Methods for Heat and

A numerical study has been conducted for the characteristics of the periodically fully developed turbulent flow and heat transfer in a channel with transverse opposite-positioned fins. The

Get Price### Numerical investigation of flow and heat transfer in a

In the present contribution a numerical study of fluid flow and heat transfer performance in a pilot-scale multi-tubular fixed bed reactor for propylene to acrolein oxidation reaction is presented using computational fluid dynamics (CFD) method. Firstly a two-dimensional CFD model is developed to simulate flow behaviors catalytic oxidation reaction heat and mass transfer adopting porous

Get Price### Numericalmodellingofsecond gradefluid

study of heat transfer from solid geometry to an ambient fluid due to the continuous stretching of the sheet/surface through the free stream. These types of heat transfer studies have a large number of significant technological applications1 2 in various branches of science and

Get Price### Characteristics of Fully Developed Flow and Heat Transfer

Nov 07 2013 · Present study focuses on numerical investigation of fully developed flow and heat transfer through three channels having sine-shaped triangle-shaped and arc-shaped wall profiles. All computations are performed at Reynolds number of 600.

Get Price### Numerical study of flow and heat transfer in a molten flux

Feb 01 2005 · Numerical simulations are performed to study coupled fluid flow and heat transfer in a thin liquid slag or flux layer. The steady state Navier–Stokes equations are solved using the commercial finite volume code FLUENT. The combined effects of natural convection bottom shear velocity and strongly temperature dependent viscosity are investigated.

Get Price### High-Speed X-Ray Transmission and Numerical Study of Melt

By using the X-ray transmission imaging system melt flows inside a molten pool were studied during laser welding of aluminum alloy at different welding speeds. Then the correlation between temperature gradients along the direction of weld penetration and melt flows in the rear part of a molten pool was analyzed by using a three-dimensional numerical method.

Get Price### Characteristics of Fully Developed Flow and Heat Transfer

Nov 07 2013 · Present study focuses on numerical investigation of fully developed flow and heat transfer through three channels having sine-shaped triangle-shaped and arc-shaped wall profiles. All computations are performed at Reynolds number of 600.

Get Price### Effect of process parameters on solidification of Al-33Cu

In twin roll strip casting process the solidification behavior in the molten pool affects the process efficiency and the product quality which is influenced by the process parameters. Numerical simulations have been carried out to analyze the fluid flow heat transfer and solidification in high speed twin roll strip caster at different pouring temperatures and roll gaps and the knowledge of

Get Price### Numerical Study of Flow and Heat Transfer in a Curved

Vol. 5 No. 2 Celen et al. Numerical Study of Flow and Heat Transfer in a Curved 134 k thermal conductivity W∙m-1∙K-1 L duct length m Nu Nusselt number p pressure drop along the duct Pa q heat flux W∙m-2 P pressure Pa Pr Prandtl number -

Get Price### Numerical study of shell and tube heat exchanger with

Feb 12 2019 · Shell and tube heat exchangers are used in various industrial processes and are one of the most commonly used heat exchangers. A shell and tube heat exchanger with a 25 baffle cut was used in this study. Tubes of different cross-sections (circular elliptical with an attack angle of 90° and elliptical with an attack angle of 0°) were studied.

Get Price### Numerical Study of Radiative Heat Flux Emitted by

Numerical model of the convective-radiative heat transfer of porous media was proposed. A stainless wire-net was used as porous media. The physical properties consisting of porosity (φ) and optical thickness (τ0) of porous media were independent variables. The air velocity was reported in the form of Reynolds number (Re). Two equations of the conservative energy with local thermal non

Get Price### Numerical study on convective heat transfer and friction

Numerical study on convective heat transfer and friction characteristics of molten salts in circular tubes and Nusselt number of molten salts in laminar and turbulent flow regimes can be

Get Price### Heat Transfer and Pressure Drop of Liquids in Tubes

Convective heat transfer of molten salt-based nanofluid in a receiver tube with non-uniform heat flux. Numerical study on convective heat transfer and friction characteristics of molten salts in circular tubes. Experimental study of single-phase flow and heat transfer in rectangular channels under uniform and non-uniform heating.

Get Price### A Numerical Study of Flow and Heat Transfer Enhancement

Dec 06 2006 · The numerical study involves three-dimensional time-dependent modeling of unsteady laminar flow (330 ⩽ Re ⩽ 850) and conjugate heat transfer in the computational domain which is set up to model the entire fin length in the air flow direction. It was found that the impingement of winglet redirected flow on the downstream tube is an

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