Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Solving Two-scale Transport Laws During Frying of Foods Using COMSOL Multiphysics

J. Maneerote, and P.S. Takhar
International Center for Food Industry Excellence Texas Tech University, Lubbock, TX, USA

Microscale comprised of the scale of food biopolymers at which biochemical reactions and textural changes take place, and the macroscale was the scale of interaction of polymers with surrounding water, vapor and oil phases. Numerous novel equations such as generalized Darcy’s law based fluid transport equations for various phases; near-equilibrium equation governing phase change from liquid ...

Estimation of Critical Parameters of Drop-Drop Electrocoalescence Using a Multiple-Drop System - new

S. S. Kulkarni[1], V. A. Juvekar[1], A. Chheda[2]
[1]Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
[2]Institute of Chemical Technology, Mumbai, Maharashtra, India

Electrocoalescence is the phenomenon of coalescence of droplets suspended in an insulating liquid or in a gas under the action of an electric field. Electrocoalescence is considered a promising tool in many petrochemical industries for desalting crude oils. However, this technique suffers from some drawbacks such as short circuiting of electrodes, limitations on applied electric field and its ...

Expanding Your Materials Horizons

R.W. Pryor
Pryor Knowledge Systems, Inc., Bloomfield Hills, MI, USA

The concept of virtual prototyping can be found linked to many different keywords in the literature: modeling, look-ahead problem solving, etc. This poster paper briefly discusses the potential real benefits that can be realized through pre-build cost savings, minimization of the number of prototype builds, and post-build problem avoidance for physical prototypes and production products. ...

Thermal analysis of a spent fuel transportation cask

P. Goyal[1], V. Verma[1], R. K. Singh[1], and A. K. Ghosh[1]
[1]Reactor Safety Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India

Spent fuel transportation casks are required to meet among others (test conditions), the regulatory thermal test conditions in order to demonstrate their ability to withstand specified accidental fire conditions during transport. This paper describes the transient thermal analysis performed with the above intention for a transportation cask. The analysis was carried out using COMSOL ...

Deformation of Drop-within-Drop System under the Influence of High Intensity Oscillating Electric Field

D. Das[1], R.S. Patil[1], S. Kulkarni[1], V.A. Juvekar[1], and R. Bhattacharya[2]
[1]IIT Bombay, Mumbai, Maharashtra, India
[2]India Atomic Energy Regulatory Board, Mumbai, Maharashtra, India

This paper deals with the simulation study using COMSOL on the deformation of drop-within-drop system in a high intensity oscillating electric field. It consists of a composite drop suspended in a continuous phase. This composite drop has a smaller inner drop suspended within the larger outer drop. The outer drop is made up of another immiscible liquid. A high intensity sinusoidally varying ...

Surface Aeration System Modeling using COMSOL

G. Selembo, P. Selembo, J. Stanton, and G. Paulsen
University of North Carolina
Charlotte, NC

Surface aeration systems are used in the wastewater treatment industry for the transfer of oxygen in the activated sludge process. These systems are capital intensive and also require a significant amount of energy to operate. Scale-up and design of these systems is largely empirical, and due to the size of these systems, modifications for experimental testing can be economically prohibitive. ...

Extraction of Thermal Characteristics of Surrounding Geological Layers of a Geothermal Heat Exchanger by COMSOL Multiphysics® Simulations - new

N. Aranzabal[1], J. Martos[1], J. Soret[1], J. Torres[1], R. García-Olcina[1], Á. Montero[2]
[1]Technical School of Engineering, University of Valencia, Valencia, Spain
[2]Department of Applied Physics, Politechnical University of Valencia, Valencia, Spain

It has been demonstrated that is possible obtain the thermal parameters of geological layers of a BHE (Borehole Heat Exchanger) by fitting temperature evolution in an observer pipe inserted into borehole.

Modelling of SiC Chemical Vapour Infiltration Process Assisted by Microwave Heating

G. Maizza[1] and M. Longhin[1]
[1]Dipartimento di Scienza dei Materiali ed Ingegneria Chimica, Politecnico di Torino, Torino, Italy

The excessive presence of residual SiC matrix inter-fiber pores is often the main cause for the very poor mechanical strength and toughness of SiC/SiC composites manufactured by CVI (Chemical Vapour Infiltration) process. This work presents a micro/macro Microwaveassisted Chemical Vapour Infiltration (MW-CVI) model as a strategy to attack the problems above. The proposed model couples a reactor ...

Cascades of Secondary Particles in High Voltage Accelerators

M. Cavenago[1], P. Antonini[1][3], P. Veltri[2], N. Pilan[2], V. Antoni[2], and G. Serianni[2]
[1]INFN-LNL, Legnaro, Padova, Italy
[2]Consorzio RFX, Padova, Italy
[3]Centro Ric. E. Fermi, Roma, Italy

A very simplified system for high voltage test is studied, considering reason for voltage holding failures which are not covered by conventional and local design criteria. A first understanding of the problem is obtained by solving the electrostatic potential in a 2D axis symmetric geometry, considering in detail the electrode shapes, and following a cascade of particle between opposite ...

Numerical Simulation of a Joule Heating Problem

S.M.F. Garcia[1], and P. Seshaiyer[2]
[1]U.S. Naval Academy, Annapolis, MD, USA
[2]George Mason University, Fairfax, VA, USA

In this work we consider a 1-D mathematical model that describes a heating problem combined with electrical current flows in a body which may undergo a phase change as a result of the heat generated by the current, so-called Joule heating. The model consists of a system of nonlinear partial differential equations with quadratic growth in the gradient. Joule heating is generated by the resistance ...