M. Darif, and N. Semmar
GREMI-UMR6606, CNRS-Universite d’Orleans, Orléans, France
A 2D transient heat conduction model was created in COMSOL Multiphysics to simulate temperature changes in material irradiated by a KrF laser beam confined on silicon’s surface. In this paper, the obtained results are shown and discussed in case of bulk Silicon. The heat source is distributed in time with ‘gate’ and ‘gaussian’ shapes. The thermal properties values ...
X. Yu , C. Woodcock , Y. Peles , J. Plawsky ,
 Rensselaer Polytechnic Institute, Troy, NY, USA
 University of Central Florida, Orlando, FL, USA
Microchannel has shown potential to dissipate high heat flux in past years . At the same time, liquid cooling attracts more and more attention from researchers for its favorable thermal properties and ability to cool down hot and keep acceptable system temperature . This work aims at modeling single-phase and two-phase flow boiling heat transfer and fluid flow with COMSOL ...
D. Droste, F. Lindner, C. Mundt, M. Pfitzner
Universität der Bundeswehr, Munich, Bavaria, Germany
In this study we investigate the heat and mass transfer in a porous media with phase change. The liquid fluid is injected from one side and heated from the other side, where it leaves the porous material in a gaseous state. Dominant forces are capillary interactions and two-phase heat conduction. To model the process we use a two-phase mixture model on a macroscopic scale. This model is ...
T. G. Zielinski 
 Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
Many of fibrous materials are very good sound absorbers, because the acoustic waves, which propagate in air and penetrate a fibrous layer, interact with the fibers so that the wave energy is dissipated. The dissipation is related to some viscous and thermal effects occurring on the micro-scale level. On the macroscopic level, a fibrous medium can be treated as an effective inviscid fluid, ...
S. Sharma , Y. Pachuary , S. N. Akhtar , J. Ramkumar ,
 Indian Institute of Technology Kanpur, Kanpur, India
 Indian Institute of Information Technology, Design and Manufacturing, Jabalpur, India
 Integral University, Lucknow, India
Laser drilling of titanium and its alloys is widely used in aerospace industry, as it offers selective removal of material at high accuracy and speed. However, laser drilling often inherits defects such as large heat affected zone, micro cracks and recast layer. These defects depend upon complex melting and solidification phenomena happening due to interaction of high-intensity laser with the ...
Enthalpy Porosity Method for CFD Simulation of Natural Convection Phenomenon for Phase Change Problems in the Molten Pool and its Importance during Melting of Solids
Priyanshu Goyal, Anu Dutta, V.Verma, I. Thangamani, R.K. Singh
Bhabha Atomic Research Centre, Mumbai, India
Shielded transportation casks are commonly used for transportation and storage of radioactive waste materials. Design approval of such casks by regulatory authority is subject to its compliance with a thermal test (among other tests) Due to exposure of cask to fire , there is a possibility of melting of the shielding material (lead) used for the cask and need to evaluate extent of melting. ...
A. M. Melcher , C. Ziebert , B. Lei , M. Rohde , H. J. Seifert 
 Karlsruhe Institute of Technology, IAM-AWP, Karlsruhe, Germany
 Karlsruhe Institute of Technology, Karlsruhe, Germany
In this work the coupled electrochemical-thermal model for a lithium-ion battery (LIB) based on porous electrode theory has been extended with contributions coming from exothermic side reactions based on an Arrhenius law to model abuse mechanisms, which could lead to a thermal runaway. These extensions have been modeled with a constant fuel model and for specified current profiles and exterior ...
K.-H. Leitz , P. Singer , A. Plankensteiner , B. Tabernig , H. Kestler , L. S. Sigl ,
 Plansee SE, Reutte, Austria
Selective Laser Melting (SLM) offers great potential for future manufacturing technology. In order to extend its applicability for the processing of high melting materials like molybdenum fundamental process understanding is required. This can be obtained by multiphysical simulations that allow a look into the process. In this contribution a thermo-fluiddynamical simulation model for laser beam ...
M. Nour , A. Lakhssassi , E. Kengne , M. Bougataya ,
 Université du Québec en Outaouais, Gatineau, QC, Canada
Abstract: Due to the restriction of the number of probes that a patient can tolerate, and the inaccurate information provided by the invasive temperature measurements, which provide information only at discrete points, a mathematical model simulation is more effective to help doctors in planning their thermal treatment doses. This will maximize therapeutic effects while minimizing side effects. ...
M. Trujillo, E. Berjano
Universidad Politécnica de Valencia, Valencia, Spain
Radiofrequency ablation is a minimally invasive techinique which is used to treat some kinds of cancer. The realism of theoretical models is very important. An influential factor in this realism is mathematical functions that model the temperature-dependence of tissue thermal and electrical conductivities. The aim of this work is to review the mathematical functions employed to model the ...