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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.

Wind Flow Modeling of Area Surrounding the Case Western Reserve University Wind Turbine

M. Fernandes[1], D. Matthiesen[1]
[1]Case Western Reserve University, Cleveland, OH, USA

The CWRU Turbine is a research turbine located in a urban campus in Cleveland, Ohio. This location may create turbulence, resulting in a possible loss in energy generation. This research attempts to answers the question of whether the wind flow is affected by the buildings or not. The surrounding buildings, which vary in height from 20 to 40 meters, may affect the wind patterns at the hub height. ...

Design of a Controlled Dosing Scheme for Liquids using a Venturi

M. Dagaonkar[1], V. Kumaran[1], R. Venkataraghavan[1], D. C. Franklin[1]
[1]Unilever R&D, Bangalore, Karnataka, India

Dosing a predetermined quantity of one liquid into another, in a controlled fashion, is a process often encountered in a variety of operations at both industrial and laboratory scales. This process becomes a challenging one if it has to be carried out in a continuous mode, without using any dosing pump and if the dosage levels are very small. A possible simple and elegant solution to the problem ...

Simulating HFIR Core Thermal Hydraulics Using 3D-2D Model Coupling

A. Travis[1], K. Ekici[1], J. Freels[2]
[1]The University of Tennessee, Knoxville, TN, USA
[2]Oak Ridge National Laboratory, Oak Ridge, TN, USA

A model utilizing interdimensional variable coupling is presented for simulating the thermal hydraulic interactions of the High Flux Isotope Reactor (HFIR) core at Oak Ridge National Laboratory (ORNL). The model’s domain consists of a three-dimensional fuel plate and a two-dimensional coolant channel slice. In simplifying the coolant channel, the computational cost and solution time are both ...

Simulation and Optimization of the Speed Flow in COMSOL Multiphysics® during the Suction of the Dust Pump for Granite Polishing Operation

B. Wenga[1], J. Kouam[1], A. Djebara[2], A. Bahloul[2], V. Songmene[1]
[1]École de Technologie Supérieure, Verdun, Montreal, QC, Canada
[2]Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST), Montreal, QC, Canada

Polishing is one of the oldest finishing processes. However, exposure to emissions of crystalline silica dust is high. Some toxicological studies have identified this pollutant as responsible for a particular type of lung cancer, silicosis. Operational solutions are needed for reducing near-field emissions of fine and ultrafine dust. Granite dust is emitted at high concentrations during ...

Miscible Viscous Fingering of Pushed Versus Pulled Interface

S. Pramanik[1], M. Mishra[1]
[1]Indian Institute of Technology Ropar, Rupnagar, Punjab, India

Viscous fingering (VF) instability has been extensively studied over past several decades in the context of various industrial, environmental and chemical processes. We try to model miscible VF at pushed or pulled interfaces using COMSOL Multiphysics®. We study the effect of the positive and negative log-mobility ratio on the fingering instability. Numerical simulation has been performed in 2D ...

Modeling Magnetic Configurations for Improved Separations of Magnetic and Non-Magnetic Materials

S. Khushrushahi[1], T.A. Hatton[1], M. Zahn[1]
[1]Massachusetts Institute of Technology, Cambridge, MA, USA

Magnetic separation of magnetic liquid phases/particles from non-magnetic liquid phases/particles are needed for applications such as cleaning up oil spills by separating oil and water liquid phases or separating magnetic materials from non-magnetic materials in biomedical and microfluidic applications. Magnetic fluids (also called ferrofluids), in a magnetic field, experience a magnetic force ...

Implicit LES for Two-Dimensional Circular Cylinder Flow by Using COMSOL Multiphysics® Software - new

M. Hashiguchi[1]
[1]Keisoku Engineering System Co.,Ltd., Tokyo, Japan

In this paper, implicit Large Eddy Simulation (LES) based on finite-element analysis is performed in order to investigate two-dimensional circular cylinder incompressible flow. Implicit LES attempts time-dependent flow computation with no explicit turbulence model. Here, two types of circular cylinder with/without surface roughness, are treated. The Reynolds number Re based of the diameter of ...

Numerical Simulation of Oil Recovery by Polymer Injection using COMSOL

J. Wegner[1], L. Ganzer[1]
[1]Clausthal University of Technology, Clausthal, Germany

In this paper we used COMSOL Multiphysics to model basic physico-chemical effects relevant in polymer enhanced oil recovery (EOR) such as non-Newtonian rheology of the displacing phase, permeability reduction, adsorption and salinity effects. COMSOL\'s PDE interface as well as Species Transport in Porous Media interface was used for solving the underlying equations. The validity of the ...

Optimizing Design of Soil Mixing Equipment through COMSOL Multiphysics® Simulations

T. Qiu[1], W. C. Kogelmann[2], K. Talebi[3]
[1]Department of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA, USA
[2]Alpine Sales & Rental Corp./Alpine Equipment LLC, State College, PA, USA
[3]Department of Energy and Mineral Engineering, The Pennsylvania State University, University Park, PA, USA

Soil mixers are widely used to mix biochemical agents and additives to remediate contaminated soils or drill cuttings and sludges. Through COMSOL Multiphysics simulations, this paper aims to evaluate the effect of geometric configuration of the blades and rotational speed on the mixing performance of various soil mixers. A numerical model is developed to simulate the complex interaction between ...

Air Flow Effect on the Temperature of a Building Integrated PV-Panel

G. Florides[1], S.A. Kalogirou[1], L. Aresti[1], R. Agathocleous[1], P. Christodoulides[1]
[1]Faculty of Engineering and Technology, Cyprus University of Technology, Limassol, Cyprus

This study examines the effect of air flow between the building integrated PV-panel and the wall. To formulate the heat exchange process for the air flowing between the PV panel and the wall, time-dependent, heat transfer partial differential equations (PDEs) are solved with COMSOL Multiphysics®. It is shown that in summer, the maximum temperature of a PV panel is observed on an east facing ...