Laplace pressure in multiphase flow ( phase field )
Iam simulating 2dimensional interface movement in phase field 2 phase flow. i need to plot the laplace presusre variation with time. is there any way i can get lapalce presusre directly from comsol. ?...
View ArticleRelease from Boundary Issue in Ray Optics
Hii everyone, I want to know how we can change the direction of ray in ray direction vector (example-Hemisphere). Suppose the default vector is pointing in upward direction and I want it to point in...
View ArticleNegative ion simulation in quadrupole mass spectrometer
I am using comsol application of quadrupole mass spectrometer. I want to pass negative ions across it. For this I am changing the value of z in particle properties but I am not getting proper results....
View ArticleConsole saving for different version
Comsol is insisting that files have to saved for version 5.4 even though I'm using version 5.3. This is a problem because Live Link for version 5.3 isn't able to work with these files. Why does comsol...
View ArticleHow to apply angular velocity to disc in solid mechanics
Hi there, I am trying to apply the roational velocity to the disc in disc brake analysis in solid mechanics module. But I didn't figure out it yet. Please anybody help me with that. I tried many...
View ArticleSimulating a break in crystal symmetry across a phase transition through Tc
Hi all,I am trying to simulate a ferroelastic sample as it is heated beyond its critical temperature (Tc) and back. In the Heat Transfer in Solids module and under the Phase Change Material option, I...
View ArticleHyperelastic material library
Hi everyone, I am doing a simulation of electromechanical coupling effect of a composite (treated as hyperelastic material)- PDMS included with liquid metal. I want to select Odgen model for PDMS...
View Articlesimulation of graded index fiber
The below post is related to an archived discussion[start here]
View ArticleStanding Acoustic Wave thermoviscous acoustics
Hi guys,I'm trying to model a standing acoustics wave in thermoviscous acoustics, but when I use Background Acoustic Field to define my wave it doesn't give me a standing wave, I also used PML but it...
View ArticleActivation fuction
At the moment, I have been working on a model where I must place successive layers at a certain time properly. I should place layers of a material one on top of the other in a construction process,...
View ArticleUnexpected behavior ball joint in MBD eigenfrequency study
Dear All,I am trying to include a ball joint with spring damper subnode in a 3D mechanical model. Apart from the joint I only use 2 rigid body domains with set masses in the Multi Body Dynamics module....
View ArticleQuestion about conventional fiber optic
Hello I am trying to calculate the HE and EH modes in a conventional fiber optic but I can only calculate the fundamental mode, could someone help me? I would like to know what difference there is...
View ArticleSwept mesh "Unsupported topology of linking face" error
The below post is related to an archived discussionIn creating swept meshes, I've encountered the "Unsupported topology of linking face" error message. This drove me crazy for months. I finally figured...
View ArticleChange the default unit problem in the physical field
HiI want to ask some questions about the default unit problem in the physical field, such as the The Transport of Diluted Species in Porous Media Interface→Concentration, the default unit is mol/m^3,...
View Articlefreeze/lock stationary thermal results for subsequent time dependent...
Is there a way to freeze/lock results from a stationary thermal study to subsequently use them in a time dependant structural mechanics study? For example to examine the effect of an object pushing...
View ArticleHow do I edit a sinusoidal pulse piecewise function into a periodic function
How do I edit a sinusoidal pulse piecewise function into a periodic function? Piecewise function: t(s)——time I0(A)——current t 0-0.002 I0sin(2pift) 0.002-0.1 0 The periodic function has a period of 0.1...
View ArticleDielectric Model
Hello,I'm trying to solve for dielectric properties of a composite using periodic boundary conditions on a representative volume element (cube). I would like to apply a background field, rather than a...
View Articlemake best mesh for cylinderical 3D
The below post is related to an archived discussion[start here] Hello, I want to build a uniform mesh in cylindrical 3D. I have the same problem as this discussion. Does anyone have an idea?With...
View ArticleSet Minimum Mesh Quality
I am looking to see if I can set the minimum mesh quality so that the mesher continues to iterate if the mesh quality is too low. Is there a way to set this in the current version of COMSOL?Thanks,Denise
View Articlesimulation of vibration fatigue
Hello dear allI want to simulate the fatigue under sine acceleration. So before the setting of vibration fatigue, which former simulation should i do? frequency domain ,time dependent or stationary...
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