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 ...
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 ...
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 ...
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 ...
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. ...
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 ...
L. Bortot , M. Maciejewski , M. Prioli , B. Auchmann ,
 CERN, Geneva, Switzerland
 CERN, Geneva, Switzerland; Lodz University of Technology, Lodz, Poland
 CERN, Geneva, Switzerland; Paul Scherrer Institute, Zurich, Switzerland
The paper presents the application of COMSOL Multiphysics® software to the modelling of superconducting accelerator magnets. A 2D magneto-thermal model is developed, using an equivalent magnetization formulation to take into account the eddy-currents’ effects. Due to the model complexity, a suitable workflow has been developed in Java® to extensively use the available COMSOL API. The automation ...
J. F. Hansen ,
 Thoratec Corporation, CA, USA
When an electronic device is worn for extended periods, possibly in direct contact with human skin, heat must be safely transferred away from the device, without exceeding standards and regulatory temperature limits on the skin and on the exposed surfaces of the device. Heat transfer is dominated by convective heat transfer to the surrounding air (possibly trapped air under clothing), and by ...
V. Srivastava ,
 Naval Materials Research Laboratory (NMRL), Defence Research and Development Organization (DRDO), Ambernath, Thane, Maharashtra, India
2D-modeling of arc welding in butt-joint configuration was performed in this study considering thermal-structural interactions. Thermal behavior was modeled in COMSOL Multiphysics® using the Heat Transfer Module with weld heat input as a Gaussian pulse whereas structural behavior using Structural Mechanics Module. Thermal-elastic-plastic behavior model based on Von Mises yield criteria and ...