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Analysis of Acoustic Response of Rooms

J.S. Crompton[1], L.T. Gritter[1], S. Yushanov[1], K.C. Koppenhoefer[1], and D. Magyari[2]
[1]AltaSim Technologies, LLC, Columbus, OH, USA
[2]Golden Acoustics, Detroit, MI, USA

The preferred acoustic response of recording studios, auditoriums and conference halls is to have an even energy response over the entire room and ...

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 ...

Simulations of Meniscus Motion and Evaporation for Convective Deposition Manufacturing

J. Xiao, and D. Attinger
Columbia University, New York, NY, USA

Convective deposition is a material processing technique where an evaporating meniscus of a colloidal suspension is dragged along a solid substrate to ...

A Directional Dogbone Flextensional Sonar Transducer

S.C. Butler
Naval Undersea Warfare Center, Newport, RI, USA

In order to transmit energy in one direction, sonar flextensional transducers are combined into arrays of elements that are spaced a 1/4 wavelength ...

Thermomagnetic Siphoning on a Bundle of Current-Carrying Wires

J.C. Boulware, and S. Jensen
Space Dynamics Laboratory, North Logan, UT, USA

Using COMSOL Multiphysics, studies were performed showing that thermomagnetic siphoning (TMS) is a sufficient manner of regulating the temperature of a ...

COMSOL Assisted Simulation of Laser Engraving

H. Karbasi
Conestoga College, Kitchener, ON, Canada

The main purpose of this paper is to develop a proof of concept software that can simulate the geometry of engraved surfaces and can estimate the depth ...

Implementation of the Perfectly Matched Layer to Determine the Quality Factor of Axisymmetric Resonators in COMSOL

M.I. Cheema, and A.G. Kirk
McGill University, Montreal, QC, Canada

Due to the inseparability of the wave equation, numerical methods are needed to develop an accurate electromagnetic model for various axisymmetric ...

Characterization of an AlGaN/GaN Electrostatically Actuated Cantilever Using the Finite Element Method

N. DeRoller, M. Qazi, J. Liu, and G. Koley
University of South Carolina, Columbia, SC, USA

AlGaN/GaN heterostructures are unique because the 2DEG at the interface is created by the difference in polarization properties of the AlGaN and the ...

Modeling of Ferrofluid Passive Cooling System

M. Yang[1,2], R. O'Handley[2], and Z. Fang[2,3]
[1]Massachusetts Institute of Technology, Cambridge, MA, USA
[2]Ferro Solutions, Woburn, MA, USA
[3]Pennsylvania State University, University Park, PA, USA

A ferrofluid contains nanoscale ferromagnetic particles suspended in a carrier liquid. It is used in some high-power acoustic speakers to cool the ...

Effective Medium Theory of Nanodielectrics for Embedded Energy Storage Capacitors

R. Bikky, N. Badi, and A. Bensaoula
University of Houston, Houston, TX, USA

In this work, we present the effective properties of nanodielectrics with gold (Au) nanoparticles embedded in polymer (Polyvinyl Pyrrolidone (PVP)) ...