Solvent Extraction
Hello,I am trying to create a solvent extraction model. I have 2 inlet (one is a solvent inlet and the other one is organic inlet) and I have 2 outlet (one is a organic outlet and the other one is...
View ArticleTrouble with a Laminar Outflow Flow Rate and a pressure at the Inlet
Hi,I'm relatively new to COMSOL. Im trying to set a system with boundary conditions where I define my outflow flow rate and ave an ambient pressure at the inlet (Case 1).I have tried it th other way...
View ArticleCrashing, can not interpret error log file
Hello, I have a simulation that I succeeded to run a few times, but most of the times (parameter changes) the application crashes. I have a hard time interpreting the log file, which I have attached....
View ArticleTracking displacement on a thermal actuator after remove voltage source
Hello,I am new in comsol. Now, I am trying to simulate displacement of a thermal actuator under 5V. I am using the time-dependent modal. I can get results of stress, displacement, and temperature....
View ArticleParameter sweep over geometrically decreasing mesh and material property
The below post is related to an archived discussionThere were earlier discussions on a parametric sweep of geometry. I did this using a range function in COMSOL which allows a discrete change in a...
View ArticleThe meaning of each stress and strain option in the post-processing of...
Thank you for providing the requested information. When I was using COMSOL's solid mechanics module, there was a problem that always bothered me. I found that there are many options for stress and...
View ArticleCharged particle tracing in combination with a changing electric field
Hi, I would like to combine a charged particle tracing with an evolving electric field between two plates. The issue I have, is that I have no idea how to implement an electric field as a function of...
View ArticleIncident angle vs. transmittance angle using Ray Tracing
Hello,I am new to Comsol and I am still getting familiar with its functionalities. My current simulation aim is to use the Ray Tracing tool with a rotating convex lens and plot the incident angle on...
View ArticlePDE implement Floquet boch Boundary condition
Hi,I am working in PDE module.I need to solve Laplace Equation with single variable.My domain is a rectangular domain.I know that my solution varies sinusodially along x.I want to know how I can impose...
View ArticlePhase Change Material
The below post is related to an archived discussion[start here] "Phase change material" is discussed in Heat Transfer Module User's Guide. See "The Heat Transfer Features"> Domain Features >...
View ArticleUnexpected size of render data
The error message "Warning: Problem encountered during results while solving. Unexpected size of render data." can be caused by the following:You have enabled a plot of residuals in "Results While...
View ArticleA probelm in Solving nonlinearity in Magnetic Fields(mf)
Dear CommunityI am trying to build a 3D model where a coil wound around a soft magentic iron core with a copper cylinder inside the core. I am trying to inject a current in the cylinder and sense the...
View ArticleHow to scale data before computing
Hello all. I have an experimental data set that I am trying to compare computational data to. The experimental data is in the range of 0 to 1 while my computational data is on the scale of 1E-15. How...
View ArticleModeling a viscoelasctic cell
Hi,I need of help for modeling a viscoelastic cell.First, I want learn to case stationary, and after time dependence with oscilatory stress.I'm new to comsol multiphysics, and would like read...
View ArticleModeling charge distribution in homopolar generator
Hi,I've read tutorial on homopolar generator modeling in COMSOL where it shows current flow. https://www.comsol.com/model/download/452611/models.acdc.homopolar_generator.pdfI'd like to know is it...
View ArticleDiet and Weight Loss | The best diet plan and natural ways of weight loss
Health is wealth. Health is good mind is good. How can we weight loss and live healthy, beautiful, life? This is our effort for all the people of the world. I want to speak on the topic ‘health is...
View ArticleInternal error CAD import.
Hi,I tried to import my drawing form SolidWorks but comsol prompt me this error message. How to fix this? I'm using 5.3a version.
View ArticleAutomated selection in assembly finalization
Hi,I am working with comsol just over 2 years now and since the introduction of selections I am trying to leverage them to automate my models. However I find the functionallity so far quite limiting...
View ArticleSimulating non-periodic nanoparticle - problem.
Hello all,I am hoping to simulate a non-periodic free-floating nanostructure encapsulated entirely by silica glass. The entire structure is surrounded by a PML layer. I extract transmission and...
View ArticleViscosity for an ideal gas
Dear all, I have a problem in my material for a turbulant CFD problem. As a simplification, I want to model a argon gas passing through components such as an orrifice and nozzle with inlet of 0.1 lpm...
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