Active discussions in the forum
Announcement: Now available: COMSOL 5.3 Update 2
Hello, I'm pleased to announce that COMSOL 5.3 update 2 is now available at: www.comsol.com/product-update This is a quick installation to keep your software current and stable. It applies to version 5.3 of COMSOL... Read more »
Posted 6 days ago
Announcement: COMSOL Conference 2017 - Submit your abstracts by *June 30th*
Hello COMSOL Community, Are you interested in presenting your simulation work at the COMSOL Conference in Boston or Rotterdam? Submit a short abstract here: https://www.comsol.com/conference/call-for-papers Submitted... Read more »
Posted 2 weeks ago
error during meshing
Hello everyone, Can you please suggest me how to solve intersecting face element error and failed to generate mesh for a particular domain ? This is the error message am getting: Finalized geometry has 21 domains, 188... Read more »
Posted by Suruchi Kumari 5 hours ago
Out of Memory problem
Dear. I am using COMSOL 5.2 to simulate "Acoustical characteristic of a 560m long tunnel". The requirement is the frequency applied should be up to 4kHz while the domain size is too big (560m in length, and appx 4x7 m in... Read more »
Posted by Nguyen Duc Nam 6 hours ago
Calculating thermal resistance
Hello, I'm relatively new to COMSOL and am having trouble finding the right expression to calculate the thermal resistance of my model during the post processing of my results. The model (made in v5.2), attached, uses... Read more »
Posted by Joe Liang 12 hours ago
Help about a Model of metal-insulator-metal (MIM)plasmonic filter (V5.2a).
Welcome everybody, First thanks for your interest! I have a broblem in the simulation of MIM waveguide ( Metal-Insolator-Metal ). Attached you find a model built by COMSOL V5.2a and the original results in the paper (Nano... Read more »
Posted by rida el haffar 1 day ago
Modifying Equations in Comsol
Hi Everybody, We are simulating a water vapor particle rising in water. For the interactions between water and vapor, we need to modify the continuity equation as it is presented in the picture attached. My question is:... Read more »
Posted by Wolfgang Bernstein 1 day ago
About the stokes drag on a sphere (mph attached)
Dear All, I am trying to find the drag coefficient of a sphere in a stokes flow. Since this 3D problem can be simplified into a 2D problem, I use the creeping flow module in 2D to simulate this case. Attached please find the... Read more »
Posted by Leo Mechelle 1 day ago
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COMSOL Blog
Why Should I Use Automatic Wall Treatment for My CFD Modeling?
Wall-bounded turbulent flows display extreme gradient close to the walls. The most accurate way to treat these gradients is to resolve them using a low Reynolds number... Read more »
How to Use Model Methods to Accelerate Your COMSOL® Workflow
Do you ever find yourself performing the same modeling operations over and over again in each new model file that you work with? Or do you work with colleagues who send... Read more »
How to Use Job Sequences to Save Data After Solving Your Model
Little-known functionality of the Study node is its ability to perform a programmatic sequence of operations, including solving; saving the model to file; and... Read more »
How to Generate Randomized Inhomogeneous Material Data
You can generate and visualize randomized material data with specified statistical properties determined by a spectral density distribution by using the tools available... Read more »
Improving Vertical-Axis Wind Turbine Efficiency with CFD Simulation
Vertical-axis wind turbines (VAWTs) offer many advantages over the more traditional horizontal-axis wind turbines (HAWTs). Still, VAWTs come with their own set of... Read more »
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