P.K. Jain, V.B. Khane, J.D. Freels
Oak Ridge National Laboratory, Oak Ridge, TN, USA
Missouri University of Science and Technology, Rolla, MO, USA
Simulation models for steady state thermal hydraulics analyses of ORNL’s HFIR have been developed using COMSOL. A single fuel plate and coolant channel of each type of HFIR fuel element was modeled in three dimensions. The standard k-? turbulence model was used in simulating turbulent flow with conjugate heat transfer. The COMSOL models were developed to be fully parameterized to allow ...
P. Schmitz, A. Cockx, S. Geoffroy, and J. Gunther
Biochemical Engineering Dpt., Université de Toulouse, Toulouse, France
Chemical Engineering Dpt., Université de Toulouse, Toulouse, France
Mechanical Engineering Dpt., Université de Toulouse, Toulouse, France
An undergraduate course is developed to initiate future engineers to multiphysics numerical simulation by approaching concrete cases in various fields such as: heat transfers, fluid flow, mechanics, chemistry and electrostatics. The so called “Virtual Experiments” course consists of four projects given successively to students. Each project lasts about ten hours. The major notions related to ...
A. A. Roy, V. Bojarevics, and K. Pericleous
University of Greenwich
The aim of this article is to demonstrate the capability of the software for predicting free-surface motion and internal fluid flow in an electromagnetically levitated sample of liquid metal. Multiphysics solutions which demonstrate the usefulness of Comsol as a powerful MHD simulation tool have been generated to two industrial problems using the ALE moving-mesh module in combination with the ...
B. Xu, M. Heydrich, S. Edmondson, A. Jahangir 
ShawCor Ltd., Toronto, ON, Canada
In oil and gas industries, electrical heaters are often used to control the internal pipe temperature. One important criterion for such test, is to maintain a uniform temperature range during the test. The objective of this study was to evaluate the heat transfer of one design of the internal electrical pipe heaters, by simulating both conduction and convection heat transfer around the heater ...
R. V. Arimilli, A. H. Nejad, K. Ekici
The University of Tennessee, Knoxville, TN, USA
A new simple air-cooled inverter design is numerically investigated using COMSOL Multiphysics® software. The thermal-fluid analysis is based on a three-dimensional conjugate heat transfer model in which the flow field is assumed to be laminar. A rigorous mesh convergence was performed to ensure that the overall energy balance error is within engineering accuracy while the computational cost is ...
D. Papasidero, F. Manenti
Politecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Milano, Italy
One big challenge for the food industry is to predict and optimize flavors. The Maillard reaction occurs in food matrices containing carbohydrates and proteins under specific operating conditions. The presented research couples thermal and kinetic modeling to the bread baking process, an ideal field to study this complex set of reactions responsible for many bread flavors. The thermal model ...
E. Luz, D. M. P. Cunha, V. H. C. Lemos
Universidade Federal do Pará - UFPA, Belém, PA, Brasil; Centro de Instrução Almirante Braz de Aguiar - CIABA, Belém, PA, Brasil
Centro de Instrução Almirante Braz de Aguiar - CIABA, Belém, PA, Brasil
The phenomenon of cavitation can severely affect the working of valves used to control liquid flow. Cavitation occurs when the pressure is reduced and the water evaporates, forming bubbles. When bubbles pass into an area of higher pressure, they condense and collapse, releasing a large amount of energy able to removing the surface layers of the material. In this work, we model the effects of ...
X. Wang, R. Guthrie, and M. Isac
McGill Metals Processing Centre, Montreal, Canada.
A numerical multiphase flow model is proposed to predict the behavior and motion of entrained inclusions in liquid steel, as they enter the orifice of a LiMCA (Liquid Metal Cleanliness Analyzer) sensor for assuring steel quality. The method of measurement is based on the electric sensing zone (ESZ) technique. The liquid metal flow field within the ESZ is obtained by solving the Navier-Stokes ...
C. Janya-Anurak, T. Bernard, and H. Birkenhofer
Fraunhofer Institute of Optronics
System Technologies and Image Exploitation IOSB
Over the last few years, Finite Element Models have become increasingly important as tool for the design of process control strategies or process optimization. Some processes possess complex spatio-temporal coupled and nonlinear dynamic. For process optimization it is very important to know the impact of parameters and state variables to the relevant process “output” parameters. In the glass ...
Luleå University of Technology, Luleå, Sweden
This paper presents a numerical study of the deposition of submicron charged spherical particles caused by convection, Brownian and turbulent diffusion in a pipe with a smooth wall and with a cartilaginous ring wall structure (see figure). The model is supposed to describe deposition of charged particles in generation 0 (trachea) of the human lung.The problem is defined by solving the fluid flow ...