Prediction of PbLi fluid flow and temperature field in a thermal convection loop for qualification of fusion materials

2021 ◽  
Vol 172 ◽  
pp. 121198
Author(s):  
Y. Jiang ◽  
S. Smolentsev ◽  
J. Jun ◽  
B. Pint ◽  
C. Kessel
Keyword(s):  
Temperature Field ◽  
Fluid Flow ◽  
Thermal Convection ◽  
Fusion Materials

A Numerical Simulation for Fluid Flow and Temperature Field in the Molten Pool of Laser Cladding on Titanium Alloy

Applied laser ◽  
2014 ◽  
Vol 34 (5) ◽  
pp. 389-394
Author(s):  
王维 Wang Wei ◽  
刘奇 Liu Qi ◽  
杨光 Yang Guang ◽  
钦兰云 Qin Lanyun ◽  
薛雄 Xue Xiong
Keyword(s):  
Numerical Simulation ◽  
Titanium Alloy ◽  
Temperature Field ◽  
Fluid Flow ◽  
Laser Cladding ◽  
Molten Pool

The Calculation of Transport Phenomena in Electromagnetically Levitated Metal Droplets

1981 ◽  
Vol 9 ◽  
Author(s):  
N. El-Kaddah ◽  
J. Szekely
Keyword(s):  
Temperature Field ◽  
Fluid Flow ◽  
Flow Field ◽  
Force Field ◽  
Electromagnetic Force ◽  
Stokes Equations ◽  
Concentration Field ◽  
Metal Droplet ◽  
Convective Transport ◽  
Mathematical Representation

ABSTRACTA mathematical representation has been developed for the electromagnetic force field, the fluid flow field, the temperature field (and for transport controlled kinetics) in a levitation melted metal droplet. The technique of mutual inductances was employed for the calculation of the electromagnetic force field, while the turbulent Navier-Stokes equations and the turbulent convective transport equations were used to represent the fluid flow field, the temperature field and the concentration field. The governing differential equations, written in spherical coordinates, were solved numerically.The computed results were found to be in good agreement with measurements reported in the literature, regarding the lifting force and the average temperature of the specimen.

Simulation of thermal convection in a stratified fluid flow

2002 ◽  
Author(s):  
S. Komurasaki ◽  
T. Kawamura ◽  
K. Kuwahara
Keyword(s):  
Fluid Flow ◽  
Thermal Convection ◽  
Stratified Fluid

scholarly journals Effect of Draw Blank Velocity on Steel Fluid Flow Field in Blank Continuous Caster Crystallizer

2011 ◽  
Vol 2-3 ◽  
pp. 673-677
Author(s):  
Ze Ning Xu ◽  
Hong Yu Liu ◽  
Yan Ping Lu ◽  
Lei Gang Liu
Keyword(s):  
Temperature Field ◽  
Fluid Flow ◽  
Heat Conduction ◽  
Flow Field ◽  
Field Distribution ◽  
Thickness Distribution ◽  
Continuous Caster ◽  
Impurity Content ◽  
Three Dimensions ◽  
Steel Blank

As the heart of continuous caster, crystallizer is the cradle of most surface deficiencies and inside quality problems in steel blank. Steel blank surface quality, nonmetal impurity content and relevant distribution rely on the steel fluid solidification behavior namely steel fluid flow field distribution on great extent. For the high temperature steel fluid has big kinetic energy, so, the immixture dregs, solidification heat conduction, temperature field distribution in crystallizer, solidification blank shell thickness distribution and continuous caster blank quality were influenced by steel fluid flow. The numerical simulation analysis on flow field and temperature field in crystallizer were conducted in this paper. Three dimensions turbulent flow model was adopted to computate flow field. The heat conduction was ignored on draw blank direction in temperature field. The conjugate heat conduction model of ANSYS CFX was adopted to analyze temperature field, which can consider heat conduction in solid layer and convection heat conduction between solid shell face and fluid simultaneity. The draw blank velocity was found by setting crystallizer water gap insertion depth and crystallizer water gap angle, which can obtain reasonable flow field in blank crystallizer.

scholarly journals Heat Transfer and Thermal Deformation Characteristics of Liquid-Cooled Laser Mirror

2014 ◽  
Vol 6 ◽  
pp. 749065 ◽  
Author(s):  
Panpan Hu ◽  
Haihong Zhu ◽  
Chongwen He ◽  
Xiaoming Ren
Keyword(s):  
Heat Transfer ◽  
Temperature Field ◽  
Fluid Flow ◽  
Finite Volume ◽  
Thermal Deformation ◽  
Numerical Models ◽  
Element Model ◽  
Flow And Heat Transfer ◽  
Finite Volume Element ◽  
Transient Thermal

A coupled finite volume-element method is developed to simulate the transient thermal deformation of water-cooled mirror by considering fluid flow and convective heat transfer. The simulation process consists of two steps: the 3D finite volume models of fluid flow and heat transfer equation are solved to obtain the time-dependent temperature field by using CFD; then, the obtained temperature field used as final temperature field is unidirectionally coupled to the finite element model for solving the thermoplastic equation. It is concluded that fluid flow not only affects the magnitude of temperature rise and thermal deformation, but also affects the distribution of temperature and thermal deformation. The temperature gradient in the thickness direction ( z direction) is found to be much larger than that in transverse direction. It is found that the temperature and the consequent deformation of water-cooled mirror increase significantly in the first seconds and gradually become steady state in the subsequent time. Experiments are conducted to estimate the precision of numerical models, and the experimental results agree well with the simulated results.

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