研究開発におけるマルチフィジックスシミュレーションの具体例

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COMSOL コンファレンス 2020 論文集を見る

Computational Fluid Dynamicsx

Modeling of a Multilayered Propellant Extrusion in Concentric Cylinders

S. Durand [1][3], C. Dubois [1], P. Lafleur [1], V. Panchal [2], D. Park [2], P. Paradis [3], D. Lepage [3]
[1] École Polytechnique de Montréal, Montréal, QC, Canada
[2] US Army ARDEC, Picatinny Arsenal, NJ, USA
[3] General Dynamics OTS Canada Valleyfield, Salaberry-de-Valleyfield, QC, Canada

A novel propellant technology requires extruding two formulations with differential burning rates (slow and fast) together as a multilayered propellant. This multilayered propellant is processed into a concentric cylinder configuration, in the form of slow-fast-slow with single ... 詳細を見る

Multiphysics Model for Breakup of Charged Liquid Droplets in Electric Fields

S. Chaudhuri [1], W. Du [1],
[1] University of Illinois at Urbana-Champaign, Champaign, IL, USA

Predicting and controlling the formation of droplets from a liquid jet is a critical problem in a variety of applications ranging from fuel injection to paint sprays. It is known that liquid droplets subjected to an electric field acquire a net electrostatic charge via induction, and ... 詳細を見る

CFD Modeling for the Ventilation System of a Hospital Room

A. Kermani [1],
[1] Veryst Engineering LLC, Needham, MA, USA

Indoor ventilation with good air quality control prevents infection with minimizing the spread of airborne respiratory and other infections in hospitals. CFD can be utilized to optimize flow pattern in clean rooms especially hospital clean rooms. More than two million people in Europe ... 詳細を見る

Multiphase Laminar Flow with More Than Two Phases

W. T. Vetterling [1],
[1] Zink Imaging, Inc., Billerica, MA, USA

Introduction The COMSOL Multiphysics® software and its CFD Module have a physics interface for solving Laminar Two-Phase Flow problems using the Level Set method (1). This paper discusses how the tool may be used with more than two phases when the flow is laminar. It then introduces a ... 詳細を見る

COMSOL Multiphysics® Software Activities Within the Research Reactors Division of Oak Ridge National Laboratory

J. D. Freels [1], P. K. Jain [1], C. J. Hurt [2], F. G. Curtis [1], M. W. Crowell [1], E. L. Popov [1],
[1] Oak Ridge National Laboratory, Oak Ridge, TN, USA
[2] University of Tennessee, Knoxville, TN, USA

INTRODUCTION Our group at ORNL started using COMSOL Multiphysics® software shortly after version 3.0 was released in the Spring of 2004. After 11 years and several releases, the application usage has grown along with number of licenses we are responsible for. This paper will broaden ... 詳細を見る

A 1-D Model of the 4 Bed Molecular Sieve of the Carbon Dioxide Removal Assembly

R. Coker [1], J. Knox [1],
[1] NASA Marshall Space Flight Center, Huntsville, AL, USA

Introduction: Developments intended to improve system efficiency and reliability for water and carbon dioxide separation systems to be used on crewed vehicles combine sub-scale systems testing and multi-physics simulations. This paper describes the development of simulations in COMSOL ... 詳細を見る

Simulation of Spiral-Tube Heat Exchangers in COMSOL Multiphysics® Software

K. O. Lund [1], S. M. Lord [2],
[1] Kurt Lund Consulting (COMSOL Certified Consultant), Del Mar, CA, USA
[2] SML Associates, Encinitas, CA, USA

A frequently occurring geometry for heat exchangers is that of a long tube wound into a helix or spiral around a core volume. There is to be heat exchange between the tube and the gases (or solids) in the core. However, the length scales of these two parts of the geometry are very ... 詳細を見る

Scraping Non-Newtonian Power-Law Paint

C. R. Meyer [1], J. R. Rice [1],
[1] Harvard University, Cambridge, MA, USA

A similarity solution to Taylor's paint scraper problem for the flow of a non-Newtonian power-law fluid is presented. A shooting method numerical solution agrees with the results found for Newtonian fluids and is able to capture both shear-thinning and shear-thickening fluids. ... 詳細を見る

Development of a Thermal Model Using COMSOL Multiphysics® Software

A. Oukaira [1], A. Lakhssassi [1],
[1] Department of Computer Science, Université du Québec en Outaouais à Hull, Gatineau, QC, Canada

The Purpose of this paper is to develop a thermal model using COMSOL Multiphysics® software that aims to get an idea of the heat flow around the ASIC, as well as to address the thermal issues for integrated circuits at the tongue board. However, we need sources of heat simulations to map ... 詳細を見る

Rheological Behaviour of Single–Phase Non-Newtonian Polymer Solution in Complex Pore Geometry: A Simulation Approach

P. Idahosa[1], G. Oluyemi[2], R. Prabhu[2], B. Oyeneyin[2]
[1]IDEAS Research Institute/School of Engineering, Robert Gordon University, Aberdeen, United Kingdom.
[2]School of Engineering, Robert Gordon University, Aberdeen, United Kingdom.

One of the most important criteria for evaluating chemical enhanced oil recovery (EOR) processes that use polymers is its rheological behaviour which in turn account for other physical effects of adsorption and resistance factors during polymer-rock interactions. However, complete ... 詳細を見る