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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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Static and Dynamic Deformations of a Reed Valve Immersed in Hydraulic Fluid

A. Chaudhuri[1]
[1]Los Alamos National Lab, Los Alamos, NM, USA

Metal reed valves are used for flow rectification in electrohydraulic pumps driven by smart materials at high frequencies but it is difficult to predict their behavior when the surrounding fluid has considerable inertia and viscosity. Simulation of this phenomenon involves modeling the ... Read More

FEM Correlation and Shock Analysis of a VNC MEMS Mirror Segment

E. Aguayo[1], R. Lyon[2], M. Helmbrecht[3], S. Khomusi[1]
[1]The Newton Corporation, Bowie, MD, USA
[2]NASA Goddard Space Flight Center, Greenbelt, MD, USA
[3]Iris AO, Inc., Berkeley, CA, USA

Microelectromechanical systems (MEMS) are becoming more prevalent in today’s space technologies. The Visible Nulling Coronagraph (VNC) instrument, being developed at the NASA Goddard Space Flight Center, uses a MEMS Mirror to correct wavefront errors. This MEMS, the Multiple Mirror ... Read More

Enhanced Transient Modeling of Hybrid Photovoltaic Air (PVT) Module

R. Kiflemariam[1], M. Almaz[1], F. Zevallos[1], C. Lin[1]
[1]Department of Mechanical & Materials Engineering, Florida International University, Miami, FL, USA

A 2D transient heat conduction model was created in COMSOL Multiphysics® software to study the performance of photovoltaic-thermal (PVT) water system. The model captures the variation of important environmental and system parameters such as outside temperature, solar irradiation, air ... Read More

Effect of Substrate Contact Angle on Ink Transfer in Flexographic Printing

F. E. Hizir[1], D. E. Hardt[1]
[1]Massachusetts Institute of Technology, Cambridge, MA, USA

Flexography is a roll-based mass printing process used in manufacture of printed products such as sensors, self-cleaning surfaces, and flexible electronics. Flexography involves inking of a stamp wrapped around a roller, and the transfer of ink on the stamp surface to a printing ... Read More

Modeling of Asphaltenes and Oil Shale Pyrolysis

J. P. Mmbaga[1], F. Munoz[2], S. Dhir[1], R. Gupta[1], R. E. Hayes[1], M. Toledo[2]
[1]University of Alberta, Edmonton, AB, Canada
[2]Departamento de Ingenieria Mecanica, Universidad Tecnica Federico Santa Maria, Valparaiso, Chile

Pyrolysis is a key step in the conversion of carbonaceous materials into useful products. In this study, we investigate the pyrolysis of asphaltene and oil shale, both experimentally and numerically. COMSOL Multiphysics® software is used to model the combined effects of fluid flow in ... Read More

Multiphysics: Fluid Mixing and Brine Pool Formation for Economic Geology Applications

C. Schardt[1]
[1]University of Minnesota-Duluth, Duluth, MN, USA

Significant submarine mineral deposits form when hot, metal-laden, saline fluids emerge onto the seafloor and mix with ambient seawater. Resulting density changes of fluid mixtures can trigger fluid buoyancy reversals, brine pool formation, and metal accumulation (Figure 1). While some ... Read More

Modeling Integrated Thermoelectric Generator-Photovoltaic Thermal (TEG-PVT) System

R. Kiflemariam[1], M. Almas[1], C. Lin[1]
[1]Department of Mechanical & Materials Engineering, Florida International University, Miami, FL, USA

2D steady state heat conduction-electric current model was created in COMSOL Multiphysics® software to study the performance of thermoelectric generator-photovoltaic-thermal (TEG-PVT) system. Four different cases were studied in the paper. In case 1, PV cells without concentrator was ... Read More

The Effect of Space Charge due to the Auto-Ionization of Neutral, Hydrogenic States in Point-Contact Germanium Detectors at MilliKelvin Temperatures

D. Faiez[1], N. Mirabolfathi[1], B. Sadoulet[1], K. M. Sundqvist[2]
[1]Department of Physics, University of California - Berkeley, Berkeley, CA, USA
[2]Department of Electrical & Computer Engineering, Texas A&M University, College Station, TX, USA

A class of semiconducting detectors, operated at temperature T~50mK, has direct application to the search for dark matter particle, when are able to simultaneously measure both the ionization and phonons created by particle interactions. We explore the effect of space charge ... Read More

Deformation of Stamp Features with Slanted Walls During Microcontact Printing

F. E. Hizir[1], H. M. Al-Qahtani[1, 2], D. E. Hardt[1]
[1]Massachusetts Institute of Technology, Cambridge, MA, USA
[2]King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia

Microcontact printing is a method for depositing patterns of thin films or molecular monolayers on surfaces using a polydimethylsiloxane (PDMS) stamp for selective mechanical contact (Figure 1). Undesired deformation of the stamp features during printing affects printed pattern quality. ... Read More

3D COMSOL Multiphysics® Model of a Plate Heat Exchanger to Support a Laboratory Teaching Environment

N. Medeiros[1], W. Clark[1]
[1]Worcester Polytechnic Institute, Worcester, MA, USA

Chemical engineering students and practitioners need an understanding of fluid flow and heat transfer inside heat exchangers. Because the flow within plate heat exchangers is difficult to visualize, we developed COMSOL Multiphysics® simulations of plate heat exchangers for students to ... Read More

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