The influence of temperature dependent fluid properties on topology optimization of conjugate heat transfer

2022 ◽  
Vol 173 ◽  
pp. 107424
Author(s):  
Sihao Qian ◽  
Shunxi Lou ◽  
Chaoliu Ge ◽  
Wei Wang ◽  
Xiwei Tian ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Topology Optimization ◽  
Conjugate Heat Transfer ◽  
Temperature Dependent ◽  
Influence Of Temperature ◽  
Fluid Properties

Effect of Interfacial Heat Transfer on Molten Tin Jet Breakup in an Oil Tank

2004 ◽  
Author(s):  
Vala Mehdi-Nejad ◽  
Javad Mostaghimi ◽  
Sanjeev Chandra
Keyword(s):  
Heat Transfer ◽  
Temperature Gradients ◽  
Temperature Dependency ◽  
Fluid Interface ◽  
Interfacial Heat Transfer ◽  
Temperature Dependent ◽  
Annular Jet ◽  
Jet Breakup ◽  
Fluid Properties ◽  
Oil Tank

This paper presents the effect of interfacial heat transfer on the breakup of an annular jet surrounded by another viscous liquid. Specifically, we consider the breakup of a molten tin jet in eicosane. One-field volume tracking is used which involves solving one set of equations for conservation of mass, momentum and energy. The original idea behind volume tracking methods has been used not only to advect mass and momentum but also energy across cell boundaries. The van Leer method is used to approximate advection temperatures across the sharp temperature gradients existing at fluid/fluid interface. To study the effect of heat transfer on the hydrodynamics of the flow, all fluid properties except density are modelled as temperature dependent. Results show a direct correlation between interfacial heat transfer and the location of the breakup. For tin, results show that the temperature dependency of viscosity is the major factor in dictating the location and time of the breakup.

Hydromagnetic Fluid Flow and Heat Transfer at a Stretching Sheet With Fluid-Particle Suspension and Variable Fluid Properties

2012 ◽  
Vol 135 (1) ◽  
Author(s):  
K. Vajravelu ◽  
K. V. Prasad ◽  
P. S. Datti
Keyword(s):  
Heat Transfer ◽  
Differential Equations ◽  
Ordinary Differential Equations ◽  
Dust Particle ◽  
Stretching Sheet ◽  
Fluid Particle ◽  
Nonlinear Ordinary Differential Equations ◽  
Temperature Dependent ◽  
Flow And Heat Transfer ◽  
Fluid Properties

In this paper, we investigate the influence of temperature-dependent fluid properties on the flow and heat transfer characteristics of an electrically conducting dusty fluid over a stretching sheet. Temperature-dependent fluid properties are assumed to vary as a function of the temperature. The governing coupled nonlinear partial differential equations along with the appropriate boundary conditions are transformed into coupled, nonlinear ordinary differential equations by a similarity transformation. The resultant coupled highly nonlinear ordinary differential equations are solved numerically by a second order implicit finite difference scheme known as the Keller–Box method. The numerical solutions are compared with the approximate analytical solutions, obtained by a perturbation technique. The analysis reveals that even in the presence of variable fluid properties the transverse velocity of the fluid is to decrease with an increase in the fluid-particle interaction parameter. This observation holds even in the presence of magnetic field. Furthermore, the effects of the physical parameters on the fluid velocity, the velocity of the dust particle, the density of the dust particle, the fluid temperature, the dust-phase temperature, the skin friction, and the wall-temperature gradient are assessed through tables and graphs.

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