storing one variable only
Dear all, I have a model with 3 variables of T, P and v. what is the best way of only storing T in solutions to save on size? do I need to do it via batch mode? I dont have COMSOL with matlab so...
View ArticleMagnetophoresis Problem
Hello, I'm trying to model a static fluid that contains magnetic particles and I'm trying to obtain their trajectory/position when in the presence of a permanent magnet.Using the MFNC physics i...
View ArticleHow can I determine the heat dissipated in a pin fin model created in COMSOL?
So I have a problem that looks like the attached picture.I have modeled the problem in COMSOL and obtained isothermal contours as well as a 3D figure displaying the temperature distribution.But how can...
View Articleimpedance measurement in comsol
The below post is related to an archived discussion hello..i have made a microfluidic channel in comsol and want to simulate it and measure the impedance with varying amount of fluids...is it possible...
View ArticleHow to solve the error in using multiple solution number for data evaluation?
Dear all,I tested the example for using mapmatrix in the LiveLink™ for MATLAB® User’s Guide. The matlab code is listed as followsmodel = mphopen('modeltutorialllmatlab'); std =...
View ArticleDiscrete phase model
I want to simulate spray cooling which needs thermal interaction between two the flow of discrete phase and continuous phase flow, and also vaporization of discrete phase, I was wondering if it is...
View ArticleWBK Tunneling Model and Thin Insulator Gate
Hello,I am using COMSOL 5.4 with the semiconductor module and I'm trying to simulate a structure that is similar to this one https://www.comsol.de/model/heterojunction-tunneling-65761 , but with a Thin...
View ArticleEM harvester with moving coil.
Hello,I'am newby to COMSOL. i'm working on an EM harvester with a printed coil on a vibratng beam and a permanent magnet. I have some technical questions for the design.1- is it possible to design a...
View ArticleUnderstanding the log file generated by 4 nodes with cluster computing
Hi all,I am trying to read the log file generated while using cluster computing on 4 nodes. I am using distributed memory approch. Moreover, the domain decomposition solver has been used in the study....
View ArticleMoving the Position of Upper Boundary in a 2D Model
Hi everyone,I am trying to create a 2D heat transfer model in which the position of my upper boundary changes with time. Let's say from t = 0 to 300 days , the upper boundary lies at y = 5 m. After 300...
View Articlehow to remove planes interactions if I made many extrudes above each other .
how to remove planes interactions if I made many extrudes above each other even I make the whole model one unit but still intersections planes between diffrent extrudes surfaces ?
View ArticleSqueezing tube peristaltic pump: sliding roller along lenght of the tube
Good evening, I'm trying to simulate peristaltic pump working with fluid structure interaction module in 2D geometry. I have obtained the first deformation promoting the squeeze of the tube with...
View ArticleHow to couple my MATLAB solver to the COMSOL's Segreated-step solver
Suppose I have a multiphysics coupling model, heat transfer and electrical field. It is a time-dependent problem. At each time step, I suppose to use the segreated scheme to deal with the coupling...
View ArticleElectromechanics simulation
HiI am working on electromechanical simulation of fixed-fixed beam. Shall I use same moving mesh method as per application available for electrostatically actuated cantilever to fixed-fixed beam?In...
View ArticleRayleigh-Plesset simulation
Hi all,I am in the process of modelling some microbubble-microchannel acoustic behaviour.During this process, I am trying to check (before going into massive files) that the gas (air) bubble follows...
View ArticleCOMSOL with Matlab: How to plot while solving??
Dear all:I am going to use the COMSOL with Matlab and want to see the simulated result while solving. The COMSOL installation manual gives the approach like this:"To display the plot in a COMSOL...
View ArticleProblems in Velocity profile (Laminar flow).
Hello everyone, I'm working on fluid dynamical model with considering Laminar flow and Heat transfer in fluid model physics. While setting the initial velocity = 0 [m/s] and initial pressure = 0 [atm]...
View ArticleFile access using Java API in batch mode
Hi,I am currently experimenting with Java API for using COMSOL. I have discovered that I have a problem with external files when using comsolbatch.The following code (see bottom of post) is for a...
View ArticleAcoustics in a Piezo Transducer
Hi,I am new to COMSOL Multiphysics and I have the following problem:I am trying to model a set of layered resonators where a piezoceramic transducer drives a matching, fluid and reflection layer. When...
View ArticleParameters in COMSOL with MATLAB
Dear All, I used several parameters in COMSOL while creating a geometry. I imported this geometry into COMSOL with MATLAB. I need to use these parameters (initially created in COMSOL) in a loop at...
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