Thermal expansion of a liquid
Hi all, I’m am trying to produce a model of a fluid enclosed on all sides except one by fixed constraints(walls), on the remaining face a thin diaphragm is in contact with the fluid. As such this is a...
View ArticleGenerating time dependent analysis
Hi all, I am having some problems with a time dependent analysis in the mechanical module. I want to simulate the response of my part to a load that is time dependent. So I have defined a triangulare...
View ArticleGas Pipe Flow
Hello , I have a simple question. What module should I use to simulate a gas flow in a pipe.Something like the Pipeline Insulation in the Model Library but with a gas. Thanks,
View ArticleHEAT TRANSFER IN A BITUMEN TANKER
I am trying to model a steel tanker filled with molten bitumen. The tanker is insulated and the bitumen is heated by two propane burners ( in form of U) located at the bottom. For the bitumen I have...
View ArticleCall For Papers
We are pleased to invite you to present your work at the COMSOL Conference 2013. The user oral and poster presentations at the Conference highlight achievements in multiphysics modeling and simulations...
View ArticleHow to get final dimensions i.e. outer profile in COMSOL?
Dear friends i want a help in this part. Here, i'm explaining the full problem. # i got the co ordinates of a biological part from image analysis in MATLAB . I plotted those points in the COMSOL (...
View ArticleEquation View of Heat Transfer
when the Physics "Heat Transfer" used, we can see such Variables in the Equation View: ht.kxx Thermal conductivity, xx component ht.kyx Thermal conductivity, yx component ht.kzx Thermal conductivity,...
View ArticleEigenvalue Calculations In RF Module With Perfectly Matched Layers: Radiation...
Hi everyone, I have one part general info that maybe others will find helpful, and one part question. Here goes: I've been trying to compute the eigenvalues of dielectric GaAs disk structures (embedded...
View ArticleRF MEMS swich
HI all, I am new to this software tool.I need some practice on RF MEMS. so if any one have example on RF MEMS switch, please attach here or send to my mail id billalaxman@aol.com
View Articlestreamline problem
Hey, i am having some problems creating the steamlines for my Helmholtz coil. I followed the steps for the one of the model on comsol website for Helmholtz coil except other than revolve to create the...
View ArticleInduced current/voltage from one coil in another
Dear community, I just started to use COMSOL. Now, I'm trying to model two cylindrical coils with different radius but at the same position (also same length and thickness). I'd like to apply a...
View ArticleThe relative error is greater than the relative tolerance..Error!!!
Iam a newbie to comsol. And Iam learning comsol for my research. I simulated my first simulation and I got the below mentioned errors. Failed to find a solution. The relative error (4.6e+004) is...
View ArticleStrain localization
Hi everybody, If I press a soft block of material with elastic modulus of 60 MPa with a hard sphere, when would I have the strain localization? Does buckling means strain localization or a sign of...
View ArticleMemory Error
Hi everyone, When computing recently a 3D geometry with conjugate heat transfer module, I got this error:"Failed to find a solution. Out of memory during LU factorization. Returned solution is not...
View ArticleIsotropic tangent modulus
Hi, I have in my model material nonlinearity and contact nonlinearity, because I connect 3-4 components together. Thus I have to specify the plasticity under solid mechanics - Linear Elastic Material....
View Articleharmonic perturbation
I have a question about harmonic perturbation I assigned a 1 A current to a cylinder in mf physics using multi-turn coil and solved it with a 60Hz frequency using frequency domain. If I assign 0.1 A to...
View ArticleGEOMETRY OF A SOLID ON A CYLINDRICAL SURFACE
Hi, I have two questions: 1)what kind of strategies can I use to attack a strip of flexible polymer on a cylindrical surface? 2)Can I measure the length of portions of curves whose design geometry in...
View ArticleElectrodes (anode and cathode) in the plasma...
Hello everybody I'm creating a plasma with a Inductively coupled plasma and laminar flow interface. I want to put the electrodes (anode and cathode) in the model (within the device) and apply voltage...
View ArticleHow to plot required results??
Dear sir, I wish to create an imaginary plane in required location of my model and plot the results like Maximum, Average and Minimum temperatures at that particular plane. How can I do that?
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