Heat transfer and flow of a slag-type non-linear fluid: Effects of variable thermal conductivity

Miao, Ling; Wu, Wei‐Tao; Aubry, Nadine; Massoudi, Mehrdad

doi:10.1016/j.amc.2013.11.010

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…The type of heat transfer to be considered and the main type of heat transfer may be different. [12][13] Based on the three heat transfer directions of heat transfer model in space, common heat transfer can be in zero-dimension, one dimension, two dimensions and three dimensions. In this paper, considering the work mechanism of dry slag discharge system, the heat transfer in width direction of conveyer belt is ignored; the heat transfer in movement direction of conveyer belt and the direction that is perpendicular to plane of conveyer belt is mainly researched.…”

Section: The Model Of Heat Transfer Character Of Dry Slag Discharge Smentioning

confidence: 99%

Visualization of the heat transfer character of dry slag discharge system

Sun¹,

Zuo²,

Lu³

et al. 2017

IJHT

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It is difficult to analyze the heat transfer character of dry slag discharge system using the theory of computational heat transfer. It is necessary to develop an all-purpose and user-friendly temperature field research platform of dry slag discharge system to decrease difficulty and raise work efficiency. Based on the analysis on work mechanism of dry slag discharge system and the theory of computational heat transfer, this paper uses numerical calculation method to build the model of heat transfer between slags and air, packages the model in dynamic chained library for being called by visualization software, programs numerical simulation visualization software of dry slag discharge system with good interface in VB environment, discusses the procedures of system development and introduces the process of interface creation, procedures control and software integration. Taking dry slag discharge equipment of a power plant for example, numerical calculation and visualization display of heat transfer character is operated to offer more effective research platform for analyzing the heat transfer character of dry slag discharge system and designing equipment in optimization.

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Section: The Model Of Heat Transfer Character Of Dry Slag Discharge Smentioning

confidence: 99%

Visualization of the heat transfer character of dry slag discharge system

Sun¹,

Zuo²,

Lu³

et al. 2017

IJHT

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“…In this paper we use the constitutive model given in [37] and advocated by Miao et al [38,39], where:…”

Section: Stress Tensormentioning

confidence: 99%

Effects of Shear Dependent Viscosity and Variable Thermal Conductivity on the Flow and Heat Transfer in a Slurry

Miao

Massoudi

2015

Energies

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Abstract:In this paper we study the effects of variable viscosity and thermal conductivity on the heat transfer in the pressure-driven fully developed flow of a slurry (suspension) between two horizontal flat plates. The fluid is assumed to be described by a constitutive relation for a generalized second grade fluid where the shear viscosity is a function of the shear rate, temperature and concentration. The heat flux vector for the slurry is assumed to follow a generalized form of the Fourier's equation where the thermal conductivity k depends on the temperature as well as the shear rate. We numerically solve the governing equations of motion in the non-dimensional form and perform a parametric study to see the effects of various dimensionless numbers on the velocity, volume fraction and temperature profiles. The different cases of shear thinning and thickening, and the effect of the exponent in the Reynolds viscosity model, for the temperature variation in viscosity, are also considered. The results indicate that the variable thermal conductivity can play an important role in controlling the temperature variation in the flow.

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“…They suggested that by varying curvature parameter and thermal conductivity fluid temperature elevates. In literature there are some other investigations related to variable thermal conductivity are available Singh, 35 Miaoa et al, 36 Abel et al, 37 Jhankal 38 and Miaoa et al 39 The aim of present paper is to analyze the effects of variable thermal conductivity on MHD Sisko fluid over stretching cylinder which has not been discussed so for. The governing nonlinear momentum and energy equations are solved numerically with shooting method.…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic flow of Sisko fluid over a stretching cylinder with variable thermal conductivity: A numerical study

et al. 2016

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In present study effects of magnetic field and variable thermal conductivity on Sisko fluid model are analyzed. The modeled partial differential equations are simplified by boundary layer approach. Appropriate similarity transformations are applied to transform governing partial differential equations into ordinary differential equations. Then these equations are solved numerically by shooting method in combination with Runge-Kutta-Fehlberg method. Comparison between present and previous computed results is presented via tables. The variations in fluid velocity and temperature are displayed through graphs for different values of Sisko fluid parameter, curvature parameter, magnetic field parameter, thermal conductivity parameter and Prandtl number. The effects of physical parameters on skin friction coefficient and local Nusselt number are exhibited with figures and tables.

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Heat transfer and flow of a slag-type non-linear fluid: Effects of variable thermal conductivity

Cited by 7 publications

References 23 publications

Visualization of the heat transfer character of dry slag discharge system

Visualization of the heat transfer character of dry slag discharge system

Effects of Shear Dependent Viscosity and Variable Thermal Conductivity on the Flow and Heat Transfer in a Slurry

Magnetohydrodynamic flow of Sisko fluid over a stretching cylinder with variable thermal conductivity: A numerical study

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