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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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Heat and Mass Transfer in Convective Drying Processes

C. Gavrila[1], A. Ghiaus[1], and I. Gruia[2]
[1]Technical University of Civil Engineering Bucharest, Faculty of Building Services, Bucharest, Romania
[2]University of Bucharest, Faculty of Physics, Bucharest, Romania

A dynamic mathematical model, based on physical and transport properties and mass and energy balances, was developed for the simulation of unsteady convective drying of agricultural products (fruits and vegetables) in static bed conditions. The model utilizes water sorption isotherm ... Read More

A Pragmatic Multiphysics Numerical Model for Melt Hydrodynamics in Selective Laser Melting

Shashank Sharma [1], J. Ramkumar [1],
[1] Indian Institutes of Technology Kanpur, Kanpur, Uttar Pradesh, India

This study explores the significance of the recoil pressure, Marangoni convection and surface tension effects in selective laser melting of Ti-6Al-4V. A pragmatic two dimensional model with appropriate powder distribution over a substrate of finite thickness has been developed in COMSOL ... Read More

Solid Hydrogen Extrusion Modeling

N. Luchier [1], S. Michaux [1], D. Chatain [1],
[1] DRF/INAC/SBT, CEA-Université Grenoble Alpes, Grenoble France

The Service des Basses Températures of CEA-Grenoble has developed a cryostat able to produce solid hydrogen ribbons of thickness between 50 and 100 µm. These ribbons are intended to be used in high-power laser facilities to study proton-laser interactions. The current developments are ... Read More

Microwave Assisted Vacuum Drying Processing: Magnetron vs Solid State. Case Study: Apple Drying

C. Bianchi [1], R. Schmid [1], D. Frick [1],
[1] Gigatherm Mikrowellen AG, Switzerland

Lyophilization is a food preservation process that allows to inhibit the growth of bacteria and other contaminants by removing water content in the processed food. Conventional vacuum dryers provide heat by thermal conduction to assist the phase change transformation, but if the product ... Read More

Simulating Approaches for Heating Process in Continuous Furnaces

G. Petrone [1], R. Sinatra [1], C. Barbagallo [1],
[1] BE CAE & Test, Italy

Heating of pieces evolving in tunnel furnaces is an argument of high interest in several industrial processes such as thermal treatment of metals, glass production and food industry.Because of pieces move into the furnace, heat flux they receive from fixed heat sources is variable in ... Read More

Computational Fluid Dynamic Study of Fixed Bed Reactor of Hydrotreating of Vegetable Oil

N. Casillas [1], L. Olivo [1],
[1] Instituto Politécnico Nacional, Ciudad de México, México

Hydrodynamics of fixed bed reactors involve complex interactions of gas and liquid phases with packed solids. Such complex interactions manifest in different flow regimes occurring in trickle-bed reactors. A comprehensive CFD model was developed to predict measured hydrodynamic ... Read More

Computational Fluid Dynamics Modeling of the NASA Titan Wind Tunnel

S. E. H. Sakimoto [1, 2], D. M. Burr [3], S. L. Sutton [3],
[1] Space Science Institute, Boulder, CO, USA
[2] Department of Geology, University at Buffalo, Buffalo, NY, USA
[3] Department of Earth and Planetary Sciences, University of Tennessee - Knoxville, Knoxville, TN, USA

The equatorial region of Titan, the largest satellite of Saturn, has extensive expanses of aeolian dunes revealed in synthetic aperture radar (SAR) images and suggested to be composed of organics or organic-coated water ice. The dunes are among the youngest surface features and appear to ... Read More

Helium Two-Phase Flow in a Thermosiphon Open Loop

Bertrand Baudouy
Head of the Cryogenics R&D Group, CEA Saclay, France

Outline of presentation: Missions of SACM (Accelerator, Cryogenics and Magnetism Division) Context : The Large Hadron collider at CERN, Geneva Cooling large superconducting magnet Thermosiphon open loops for cooling superconducting magnets Experimental facility and ranges of the study ... Read More

Solar Cell Cooling and Heat Recovery in a Concentrated Photovoltaic System

M. Cozzini[1]
[1]Fondazione Bruno Kessler (FBK), Renewable Energies and Environmental Technologies (REET) Unit, Trento, Italy

Concentrated photovoltaic systems with high efficiency solar cells are being widely investigated, aiming at improving the cost-efficiency balance in the solar energy field. Different cell types are in use: e.g., high concentration triple junction cells, reaching efficiencies of the order ... Read More

When Precise Numerical Predictions Come to the Rescue of Liquid Lubrication

J.-D. Wheeler [1], V. Bruyere [1], P. Namy [1],
[1] SIMTEC, Grenoble, France

Whereas some bearings designed in the 19th century are still working properly nowadays, some others which were recently designed encountered premature failures. Tribological applications, such as journal bearings or rolling element bearings, are generally ruled by complicated ... Read More

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