A. Dhawan, F. Li, A.G. Akingba, and J.V. Clark
Purdue University, West Lafayette, IN, USA
Indiana University, Indianapolis, IN, USA
In this paper we numerically explore design variations to increase the resistance to rotation of our novel large-deflection, linear-transduction pressure sensor to increase its expected yield for post-processing assembly and misalignment. During post processing assembly, a diaphragm is anodically bonded to the base which contains comb drives. Once the diaphragm is in contact with the comb drive, ...
W. Hodges, and J.V. Clark
Purdue University, West Lafayette, IN, USA
In this paper we explore the design space of several configurations of electro thermal actuators (ETA) through COMSOL. A unique attribute of ETA is their ability to produce a large and stable actuation force using any semi-conductive material. Comparisons between ETAs are lacking. Without adequate comparisons, it is difficult for designers to readily decide which type and geometry of ETAs might ...
J.H. Park, and P. Krstic
Oak Ridge National Laboratory, Oak Ridge, TN, USA
Ionic current through an electrolyte filling a carbon nanotube (CNT) is characterized by unusually high current values, due to the strong slip of the fluid at the inner surface of the nanotube, as well as of a dominating role of electro-osmotic component. Using COMSOL, we explore the fundamental features of this phenomenon with respect to the CNT length and excess charge inside the tube. COMSOL ...
D. Case, B. Taheri, and E. Richer
Southern Methodist University
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 ...
Bechtel Marine Propulsion Corporation
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 ...
University of South Florida, Tampa, FL, USA
A two-dimensional atrial tissue model has been constructed in COMSOL Multiphysics® software to study the propagation of action potential and electrograms. The model presents the atrial electrograms recorded with a mapping catheter. A 2D atrial tissue model is simulated using the Courtemanche et al. cell model equations. PDE in coefficient form was used in COMSOL Multiphysics® to reproduce ...
F. Chen, T. Gulati, H. Zhu, A. K. Datta
Cornell University, Ithaca, NY, USA
This research studies the thermal effect of frozen pie heating in the microwave oven. Considering as composite material, the properties of pie derived based on its composition. Here the package, susceptor’s influence to the temperature distribution is also studied.
R. Kiflemariam, H. Fekramandi, C. Lin
Department of Mechanical & Materials Engineering, Florida International University, Miami, FL, USA
A 3D electro-conjugate heat transfer model was made to study an embedded microfluidic/TEG system (μF/TEG) system. An innovative embedded microfluidic/TEG system (μF/TEG) system is proposed which enables a device to be able to provide power to its cooling system eliminating external power input and resulting in energy efficient and more reliable heat removal system. The research identifies ...
Modeling of Packed Bed Reactors: Hydrogen Production by the Steam Reforming of Methane and Glycerol - new
A. Dixon, B. MacDonald, A. Olm
Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA
The conventional route to hydrogen production is by steam reforming of methane (MSR) in a multitubular packed bed. With the increasing use of biodiesel as a renewable fuel, interest has grown in steam reforming of the excess glycerol produced as a side product (GSR). We use COMSOL Multiphysics® software to model a tubular packed bed reactor, solving a single pellet model at each point. The ...
A. Piyadasa[1,3], P. Gao[1,2,3]
Department of Physics, University of Connecticut, Storrs, CT, USA
Department of Materials Science & Engineering, University of Connecticut, Storrs, CT, USA
Institute of Materials Sciences, University of Connecticut, Storrs, CT, USA
3D finite element analysis model has been constructed for testing the directional dependence in a novel form of nanowire array gas flow sensor. Single nanowire (p-type single crystal Silicon) model is developed using fluid structure interaction and piezoresistivity components in the MEMS Module for COMSOL Multiphysics® software. Change in resistivity tensor due to induced stress in the nanowire ...