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See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.

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交变压力波强化传热

张东伟 [1], 蒋二辉 [1], 周俊杰 [1],
[1] 郑州大学化工与能源学院热能系统节能技术与装备教育部工程研究中心

节能、高效、紧凑已经成为制冷空调行业的发展趋势，其中强化换热技术尤为关键。因此，本文采用COMSOL软件对微型错排管换热器进行了建立二维模型，基于瞬态模型，采用流动和传热模块进行有无交变压力波的数值模拟分析。结果发现随着交变压力波的添加大大增加了速度场、压力场及温度场的波动情况，使得管内工质边界层破坏降低了传热的热阻综合空化链式理论，交变压力波能够起到强化传热的作用，提高了制冷效率，有利于推动制冷行业的发展。 Read More

Simulation of the Flow of an Autonomous Spherical Ball inside a Pipeline

W. Chalgham [1], A. C. Seibi [1], M. Mokhtari [1],
[1] University of Louisiana at Lafayette, Lafayette, LA, USA

One of the limitations of pipelines performance and structural integrity assessment is the continuous inspection of possible leaks due to corrosion or other types of failure mechanisms. Efforts to develop new technologies started several decades ago where different inspection techniques ... Read More

Modeling the Behavior of a Composite Riser

C. V. Amaechi [1], J. Ye [1],
[1] Lancaster University, Lancaster, United Kingdom

Currently, there are approximately 3,400 deepwater wells in the Gulf of Mexico (GoM) having depths greater than 150 meters, and a worldwide undiscovered deepwater reserves estimated to exceed 200 billion barrels and 25% of the total US reserves (BOEM, 2016), while others are in regions ... Read More

Benchmark Comparison of Natural Convection in a Tall Cavity

H. Dillon[1]
[1]Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA

A comparison of the commercial code COMSOL is performed with the bench-mark solutions provided by the literature for a tall, differentially heated rectangular cavity for aspect ratios of 8, 15, 20, and 33. At small Rayleigh numbers the flow is dominated by conduction. As the Rayleigh ... Read More

Analysis of Heat, Mass Transport, and Momentum Transport Effects in Complex Catalyst Shapes for Gas-Phase Heterogeneous Reactions Using COMSOL Multiphysics

A. Nagaraj[1], and P. Mills[2]

[1]Department of Electrical Engineering and Computer Science, Texas A&M University, Kingsville, TX, USA
[2]Department of Chemical and Natural Gas Engineering, Texas A&M University, Kingsville, TX, USA

The global demand for sulfuric acid has been forecast to grow at an average of 2.6% per year from 2005 – 2010. The primary objective of this work is to analyze the performance of various heterogeneous catalyst shapes that have been proposed for the oxidation of SO2 to SO3 used in the ... Read More

Upscaling of Heterogeneous Rock Properties via a Multiscale Image to Simulation Approach

S. Zhang[1], M. Pal[2], P. Barthelemy[1], M. Lei[1]
[1]Visualization Sciences Group, Burlington, MA, USA
[2]Shell International Exploration and Production, Rijswijk, The Netherlands

The mass and recoverability of oil and gas in unconventional reservoirs strongly depend on the understanding the petrophysical properties of the rocks at a large range of scales. Three-dimensional imaging is capable of unveiling the detailed microstructures within the rocks down to the ... Read More

Simulation of Constant-Volume Droplet Generators for Parallelization Purposes

D. Conchouso [1], A. Arevalo [1], D. Castro [1], Y. Ying [1], I. G. Foulds [2]
[1] King Abdullah University of Science and Technology, Thuwal, Makkah, Saudi Arabia
[2] School of Engineering, University of British Columbia - Okanagan, Vancouver, BC, Canada

To maintain same droplet size across parallel devices, new break-up strategies based on geometry are been studied. In this work, we model a geometrically-set droplet generator, in which the droplet break-up occurs by a block and break mechanism. In other words when the disperse phase ... Read More

Numerical Investigation Of Non-Newtonian Emulsion Formation At Microfluidics T-Junction

W. V. Loong [1]
[1] SEGi University, Malaysia

The main focus of the present study is the parametric investigation of the influence of viscosity on breakup dynamics of the non-Newtonian sodium carboxymethylcellulose (CMC) droplets. It presents the numerical simulations of the fluid dynamics of CMC droplets with shear-thinning ... Read More

Analysis of Electromagnetic Behavior of Permanent Magnetized Electrical Machines in Fault Modes

M. U. Hassan [1], R. Nilssen [1], A. Røkke [2],
[1] Department of Electrical Power Engineering, NTNU, Trondheim, Norway
[2] Rolls Royce Marine AS, Trondheim, Norway

The use of Permanent Magnet Synchronous Machines (PMSM) as shaft generators is not new in marine vessels propulsion drive trains. Due to risk of fires in stator windings by internal faults, DNV GL requires the shaft generator to be electrically dead without losing propulsion. This ... Read More

Enhanced Fin Tube Heat Exchanger Design Through Topology Optimization

Shi Zeng [1],
[1] National University of Singapore, Singapore

Fin tube heat exchangers are widely used in air conditioning systems. Various fin structures have been proposed and studied in literature to enhance their heat transfer performance. However, enhancement in heat transfer is often accompanied by pressure drop penalty. This study utilized a ... Read More

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