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. ...
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 ...
R. Jia, J. Hu, X. Xiong
Department of Mechanical Engineering, University of Bridgeport, Bridgeport, CT, USA
Department of Electrical and Computer Engineering, University of Bridgeport, Bridgeport, CT, USA
Plate fin heat exchangers are widely used for heat recovery or cooling purposes in many industries, such as cryogenics, aerospace and automobile industries. This paper developed a numerical model to simulate the heat transfer and fluid flow in a counter flow plate fin heat exchanger and optimize its design parameters. The conjugate heat transfer in the finned plate and fluids in the channels ...
I. Khan ,
 University of Central Lancashire, Preston, United Kingdom
A two-dimensional steady model of the natural convection around a cylinder is solved numerically using COMSOL Multiphysics software. The cylinder receives non-uniform heat from a radiating panel, which is assumed to be sufficiently far away so that the flow around the panel does not interfere with the cylinder. Changes in temperature and velocity are monitored for varying heating rates and ...
T. Marin-Alvarado ,
 M4Dynamics, Toronto, ON, Canada
An external library, M4Dlib , has been developed to solve multiphysics problems coupled to solution thermodynamics. This approach extends the local equilibrium concept to multiphysics modeling by incorporating a full Gibbs energy minimization routine at each numerical node to calculate the equilibrium based on global temperature, enthalpy or concentration conditions (Figure 1). The ...
M. M. Nahar , H. Moon , G. S. Bindiganavane , J. Nikapitiya 
 Department of Mechanical and Aerospace Engineering, University of Texas - Arlington, Arlington, TX, USA
Electrowetting on Dielectric (EWOD) is a versatile tool for performing basic operations in Digital Microfluidic Systems. In EWOD, surface tension between a liquid droplet and solid substrate is modulated by applying voltage to an electrode and a hydrophobic surface is transformed into a hydrophilic one. Thus a droplet partially placed on the activated electrode can be moved due to asymmetric ...
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. ...
V. Dhinakaran, S. Khope, N. S. Shanmugam , K. Sankaranarayanasamy
National Institute of Technology, Tiruchirappalli, Tiruchirappalli, Tamil Nadu, India
Plasma Arc Welding (PAW) is one of the important arc welding processes commonly used in electronics, medical, automotive and aerospace industries due its high accuracy, finishing, and ability of welding any hard materials. It is an extension of Tungsten Inert Gas welding (TIG or GTAW). PAW has been unnoticed because it is more complex and requires more expensive equipment compared to other ...
Heat Generation Modeling of Two Lithium Batteries: from the Cell to the Pack in COMSOL Multiphysics® Software
J. Stoudmann , R. Rozsnyo , T. Mackin , J. Dunning 
 Haute École du paysage, d'ingénierie et d'architecture, Genève, Switzerland
 California Polytechnic State University, San Luis Obispo, CA, USA
A thermal model to predict the heat generation during the charge and discharge of a battery pack is an essential tool to manage the thermal behavior, performance and life of the batteries. In this work, a battery cell is modeled in COMSOL Multiphysics® using the Batteries and Fuel Cells module.
J. v. Schijndel , R. v. Eck , M. Klep ,
 Eindhoven University of Technology, Eindhoven, Netherlands
The paper presents a student guide on how to implement surface to surface radiation within COMSOL Multiphysics® software for case studies found within the built environment. We included four benchmarks: (1) Radiation in a triangular cavity with infinite length; (2) Radiation between two infinitely long rectangular plates; (3) Radiation in a three dimensional rectangular enclosure; (4) Radiation ...