Technical Papers and Presentations

Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Multiphysics Modeling of Magnetorheological Dampers

D. Case, B. Taheri, and E. Richer
Southern Methodist University
Dallas, TX

A magnetorheological fluid consists of a suspension of microscopic magnetizable particles in a non-magnetic carrier medium. When a magnetic field is produced in the same space, the microscopic particles suspended in the fluid become oriented and form chains along the magnetic flux lines, changing the fluid’s rheology. This project uses COMSOL Multiphysics to examine the magnetic flux lines ...

COMSOL Multiphysics Predictions of Pressurized CO2 Foil Thrust Bearing Characteristics

T. Munroe
Bechtel Marine Propulsion Corporation
Niskayuna, NY

This report discusses an analysis of gas foil thrust bearings used in the Integrated Systems Test (IST) turbomachinery. Gas foil thrust bearing failures occurred in IST turbomachinery during operational testing at Barber-Nichols Inc. This paper presents preliminary results of a study to assess, by means of multiphysics analyses, the performance characteristics of the foil thrust bearing over ...

Multiphysics analysis of Cancer therapy using Carbon NanoTube and NIR irradiation

S. Sukuvihar
Keisoku Engineering System Co., Ltd., Tokyo, Japan

Conventional cancer therapy includes surgery, radiotherapy, chemotherapy, hormone therapy etc.. Improved methods to cure cancer are being studied. The special properties of newly improved Carbon Nano Tube are being studied for the cancer therapy. A multiphysics simulation of the cancer therapy using Carbon Nano Tube and Near Infrared Irradiation is done in COMSOL 4.0a, to help the research move ...

Driving Method of Microtool by Horizontally-arranged Permanent Magnets for Single Cell Manipulation

F. Arai
Nagoya University, Nagoya, Japan

This paper presents two innovative driving methodologies using magnetically driven microtools for precise cell manipulations and its automation systems. The new driving methodologies are introduced and backed up with FEM analysis using COMSOL and the experimental results. The positioning accuracy improves 3-10 times and the following response become 10 times higher.

Design of Novel Lithographic Strategies Through Application of Electromagnetic and Multiphysics Simulations

J.P. Singer, J. Lee, S. Ni, M.A. Gibson, S.E. Kooi, and E.L. Thomas
Massachusetts Institute of Technology, Cambridge, MA, USA

Large area patterning techniques such as interference lithography or self-assembly provide 3D nanoscale structures, but lack arbitrary control over what regions are patterned. 3D direct write (DW) lithographic techniques such as multiphoton lithography (MPL) possess the capability to fabricate nearly arbitrary patterns; however, due to the serial nature of DW, fabrication is slow relative to ...

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