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.


View the COMSOL Conference 2023 Collection

Computational Fluid Dynamicsx

The Transient Modeling of Bubble Pinch-Off Using an ALE Moving Mesh

C.J. Forster, and M.K. Smith
Georgia Institute of Technology, Atlanta, GA, USA

The use of an acoustic field to control the boiling process has the potential to increase the overall rate of heat transfer and delay the critical transition to film boiling. This system is being investigated through the development of a model of a single boiling bubble near a flat, ... Read More

Numerical Simulation of Exact Two-Dimensional Governing Equations for Internal Condensing Flows

S. Mitra, R. Naik, and A. Narain
Michigan Technological University, Houghton, MI, USA

The paper outlines a two-dimensional computational methodology and presents results for laminar/laminar condensing flows inside mm- scale ducts. The methodology has been developed using MATLAB/COMSOL platform and is currently capable of simulating film-wise condensation for steady and ... Read More

Analysis of Lubricant Flow Through Reynolds Equation

K.C. Koppenhoefer[1], S.Y. Yushanov[1], L.T. Gritter[1], J.S. Crompton[1], and R.O. Edwards[2]
[1]AltaSim Technologies LLC, Columbus, OH, USA
[2]Cummins Fuel Systems, Columbus, IN, USA

Reynolds equation is used to analyze fluid flow through small gaps. As such, the solution of Reynolds equation provides critical information for a wide range of tribological problems. In any case where a lubricant resides between two moving surfaces, the Reynolds equation can be used to ... Read More

Modeling an Oscillating Water Foil for Hydro-kinetic Power Generator Using COMSOL 3.5a

R. Kallenberg[1], R. Han[2], and J. Cherry[2]
[1]Kallenberg Enterprises, Fairbanks, AK, USA
[2]University of Alaska Fairbanks, Fairbanks, AK, USA

The research team has devised and patented an oscillating, hydro-kinetic power-generating device for use in river and tidal environments. The interaction of water and the designed foil in a straight rectangular turbulent channel is modeled explicitly using two conservation laws: ... Read More

Influence of Inlet Fluctuations on the Development of The Turbulent Two-Stream Mixing Layer

J. Tawfik, and R. Arimilli
The University of Tennessee, Knoxville, TN, USA

The finite element method applied to the k-epsilon turbulence model is used to investigate the two-stream turbulent mixing layer. Whereas the model is known as one of the most popular of the turbulence models to date, the model has yet to be applied to the classical mixing layer problem ... Read More

COMSOL Multiphysics for Efficient Solution of a Transient Reaction-Diffusion System with Fast Reaction

M.K. Gobbert[1], A. Churchill[1], G. Wang[1], and T.I. Seidman[1]
[1]Department of Mathematics and Statistics, University of Maryland, Baltimore County, Baltimore, Maryland, USA

A reaction between chemical species is modeled by a particular reaction pathway, in which one reaction is very fast relative to the other one. The diffusion controlled reactions of these species together with a reaction intermediate are described by a system of three transient reaction ... 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

Collection efficiency of particles on a ribbon in a turbulent air flow

R. Divigalpitiya[1]
[1]3M Canada Company, London, Ontario, Canada

The collection efficiency of aerosol particles on a ribbon in a turbulent flow is analyzed using COMSOL Multiphysics. The flow field is solved using Chemical Engineering module and particle tracing plots are obtained using equations of motion including Khan and Richardson drag force. A ... Read More

Mixing Layer Analysis in Variable Density Turbulent Flow

A.E. Alshayji[1]
[1]Department of Mechanical Engineering, College of Engineering and Petroleum, Kuwait University, Safat, Kuwait

In this study, numerical simulations of mixing in turbulent flow, subject to a change in density, are performed. Attention is focused on the binary mixing between two streams of fluid in which a variable density step are formed due to a difference in the temperature. This binary mixing ... Read More

Flow and Mixing in the Liquid between Bubbles

B. Finlayson[1]
[1]Department of Chemical Engineering, University of Washington, Seattle, Washington, USA

Mixing is characterized in liquids moving between bubbles when the bubbles are moving down a microfluidic channel. The shape is assumed based on fluid mechanical arguments and experimental observations, and the mixing is characterized for a variety of situations in two and three ... Read More