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Technical Papers and Presentations
Pedagogic use of COMSOL Multiphysics for Learning Numerical Methods and Numerical Modeling
J-M. Dedulle
L'ecole Nationale Supérieure de Physique de Grenoble
The students at ESPNG have, since 2002, been using COMSOL Multiphysics in order to master physical phenomena and the finite element method. We developed several projects based on the modeling of physics phenomena, and, in this paper, we present projects based on Physical Vapor Transport and Magnetic Levitation. --------------------------------- Keynote speaker's biography: Jean-Marc ...
Simulation of Exhaust Gas Heat Recovery System for an Automobile
Abhinav Prasad[1], David Neihguk[1], Anil Kumar Jaswal[1]
[1]Mahindra Research Valley, Mahindra World City, Chennai, Tamil Nadu, India
This paper presents the simulation of exhaust gas heat recovery system for an automobile using COMSOL Multiphysics®. A double pipe heat exchanger is modeled in which the tube side medium is the hot exhaust gas and the shell side medium is water. The problem is divided into three parts i.e. Laminar flow in water regime, Turbulent flow in exhaust gases and Heat Transfer in solids. They are solved ...
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 and width of engraved groove and associated laser parameters. For this purpose, COMSOL has been used to simulate the moving laser beam as a source of heat over physical domain made of different materials. Through interaction modeling of ...
Heat Transfer and Phase Transformation on Matrix Assisted Pulsed Laser Evaporation (MAPLE) of Biocompatible Thin Layers
E. Lacatus[1], G.C. Alecu[1], M.A. Sopronyi[2], A. Tudor[1]
[1]POLITEHNICA University of Bucharest, Bucharest, Romania
[2]INFLPR -National Institute for Laser Plasma and Radiation Physics, Bucharest, Romania
Matrix Assisted Pulsed Laser Evaporation (MAPLE) technique is used for the deposition of high quality biocompatible polymer thin films. During the deposition process the temperature of the laser target should be kept below 193K to assure the proper quality of both evaporation and deposition phases of the process. On a first approach COMSOL Multiphysics® was used to describe and analyze the ...
Analysis of Thermoelectric Phenomena
J. Crompton, S. Yushanov, L. Gritter, and K. Koppenhoefer
AltaSim Technologies, LLC.
Columbus, OH
Thermoelectric phenomena provide the direct conversion of heat into electricity or electricity into heat, the phenomena is described by three related mechanisms: the Seebeck, Peltier and Thomson effects. Thermoelectric devices have found many applications ranging from temperature measurement, solid state heating or cooling and direct energy conversion from waste heat. In this paper, analysis ...
Food Cooking Process. Numerical Simulation of the Transport Phenomena
B. Bisceglia[1], A. Brasiello[1], R. Pappacena[1], R. Vietri[1]
[1]University of Salerno, Department of Industrial Engineering, Fisciano (SA), Italy
Aim of the study is to determine the influence of some of the most important operating variables, especially humidity and temperature, of drying air on the performance of cooking process of pork meat. The process is simulated using finite elements software COMSOL Multiphysics®. The proposed model considers two geometries: cylindrical and parallelepiped, with fixed physical properties and ...
Developments in a Coupled Thermal-Hydraulic-Chemical-Geomechanical Model for Soil and Concrete
S.C. Seetharam[1], D. Jacques[1]
[1]Performance Assessments Unit, Institute for Environment, Health and Safety, Belgian Nuclear Research Centre (SCK•CEN), Mol, Belgium
This paper documents current status in the development of a coupled thermal-hydraulic-chemical-geomechanical numerical suite within COMSOL-MATLAB environment to address soil and concrete applications. The mathematical formulations are based on well-established continuum scale models unifying mass conservation, energy conservation, charge conservation, thermodynamic equilibrium and kinetics and ...
Steady and Unsteady Computational Results of Full Two Dimensional Governing Equations for Annular Internal Condensing Flows
R. Naik[1], S. Mitra[1], A. Narain[1], N. Shankar[1]
[1]Michigan Technological University, Houghton, MI, USA
This paper presents steady and unsteady computational results obtained from numerical solutions of the full two-dimensional governing equations for annular internal condensing flows in a channel. This is achieved by tracking the "sharp" interface while solving the flow fields using COMSOL Multiphysics® and MATLAB®. The unsteady wave simulation capability is used to predict heat-transfer ...
Simulation of Thermal Transport Based Flow Meter for Microfluidics Applications
E. Byas[1], A. Arevalo[1], I.G. Foulds[1]
[1]King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
COMSOL Multiphysics® is used to simulate a thermal transport based flow sensor, which will be embedded in a micro-channel of a Poly-methyl methacrylate (PMMA) based microfluidic device. The channel height is 100μm and for simulation purposes the lengths has been set to 1.2mm. The heater element and the two sensors are made of platinum and were modeled using Heat Transfer in Fluids, Laminar flow ...
2D Simulations and Electro-Thermal Analysis of Microheater Designs using COMSOL for Gas Sensor Applications
G. Velmathi, N. Ramshanker, and S. Mohan
Department of Instrumentation, Indian Institute of Science, Bangalore, Karnataka, India
Microheaters have been widely investigated because of their extensive applications in gas sensors, flow rate sensors and other Microsystems. The geometric optimization for the microheater was performed by simulating a wide range of possible geometries using COMSOL Multiphysics, a commercial Finite Element Analysis (FEA) package. The simulated results of Microheaters having an improved temperature ...


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Rob looks just like your dad… love the blonde
Yeah the blonde is Khloe!!
Great look for you Khloe!!
OMG Khloe blond!! I love black or brunette better
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Merry Christmas Eve my dolls!!!!!!! As I'm sure many of you know, it's a Kardashian Jenner family tradition to host a Christmas Eve party every year at my mom's house. The entire family comes out, along with all of our closest friends. We've been... Read more »
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iPhone 3.0: On-Device App Download from Multiple iTunes Accounts?
We mentioned the new Store Setting tab just a short time ago. daveizzle on Twitter made the observation that this functionality makes it seem like you could theoretically sign into one account, download apps, sign out, sign into another account, and download apps from that account as well, all onto the same iPhone or iPod touch. Boom. Support for multiple iTunes accounts right on the device.
Why would that be interesting? Say your spouse had already bought a $9.99 app. App Store lets the same account re-download that app to the iPhone without a second charge, so it becomes a way to "share" applications (as long as you trust the person enough to put your iTunes password into their device). Another scenario would be a UK users wanting to download a US-only app. They could log into a US account, download the region-restricted app, then log out and log back into their own, local account.
Note: This has been possible all along via syncing from iTunes. Any apps downloaded from any account would transfer over to the iPhone. This merely extends the purchase and/or download process to the iPhone, further releasing iTunes tethered hold.
(Of course, since you can't re-download music for free, and you can't download movie or TV show videos directly to the iPhone, this pertains only to App Store content -- likely to prevent Big Media heads from 'sploding).
There are 9 comments. Add yours.
Nice, i will be able to use my US account on the phone :)
I've been long awaiting this feature because I had an old account that I used to share with my dad and have a few paid apps and now don't have now i've got my own account and have some paid apps.
are there no piracy issues here?
sign in with your account on someone elses phone, redownload the apps, sign out and change your password. end result both you and your "friend" have the app?!?
granted this is great that people will be able to use a us account when needed winks at rene but without good protection it could be quite a problem
Maybe iTunes will bind the downloaded app to the specific iPhone at first sync, alas no piracy?
Good News, I don't like to have to sync my phone every time I want to download an app from my US Account. Too bad they can't do it for iTunes store as well but I can understand for reasons mentioned by others.
my friend is a developer and he sent me the itunes 8.2 file but when I open the file up and ready to install it says itunes 8.1.1. ?
is this is what it supposed to say?
more important is the ability to activate and use an iPhone with out ever needing to own/have a computer. This is really important for growth to the masses
Compassionate for the vast canvass, but I'm truly warm the new Zune, and comedian this, as easily as the fantabulous reviews many tally graphical, leave cater you settle if it's the reactionary deciding for you.
I can't change my iTunes account


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By Nita Johnson
Staff Writer
LAUREL COUNTY, Ky. —
A good deed turned bad when a London man stopped to assist what he believed was a stranded motorist on Sunday night.
Instead, the Good Samaritan was attacked and robbed by two men who pulled up behind his vehicle as he went to assist the other motorist.
A press release from the Laurel County Sheriff's Office states Deputy Josh Scott went to the scene on Hammock Road, five miles south of London, around 7:30 p.m. where a 19-year-old man had been hit several times with a baseball bat.
The victim reported he came upon a white Cavalier with the hood up and blocking the road. Thinking the car had broken down, the victim pulled over near the ditchline to offer assistance. At almost the same time he exited his vehicle, another car pulled up behind his vehicle and two men got out and began attacking him with the baseball bat and a knife. Although he was struck several times with the bat and the assailants tried to cut him with the knife, they only succeeded in cutting the victim's coat.
The two men then went through the victim's vehicle, taking sunglasses and other small items and left the scene as the female driving the Cavalier jumped in her car, which started right up, and followed them.
Despite having some injuries to his neck, the victim refused medical attention.
His description of the assailants was limited, stating the female was in her mid-20's, white, and drove a white Cavalier with no plates on it.
Report information
Anyone with information regarding the suspects is urged to call the Laurel County Sheriff's Office at 606-864-6600.


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