fsi ,breaking the incompressibility condition
Hi What is the reason for breaking the incompressibility condition in a numerical study of the effect of fluid-structure interaction on transient natural convection in an air-filled square cavity with...
View ArticleStructure & Meshing Problem
I built a 3d model to study the flow characteristics of microfluidics, but I couldn't get accurate results due to differences in size. The size of the structure in the z direction is much larger than...
View ArticleMeshing & structure problem
I built a 3d model to study the flow characteristics of microfluidics, but I couldn't get accurate results due to differences in size. The size of the structure in the z direction is much larger than...
View Articlemicroring resonator simulation
Hello, recently, I try to simulate the ring part of the microring resonator with 2D axisymmetric referring the "models.woptics.step_index_fiber_bend." case in the app library. The aim is to obtain a...
View ArticleFrequeny
Hi I have been trying to get the vortex shedding frequency and the St number from the standard COMSOL model of flow past cylinder.
View Articletransparent boundary condition with reaction for PNP model in 1D
I am implementing a PNP model of a RFB considering 5 species initially in steady-state.I am working with the math module in COMSOL in a 1D problem considering the cathode and membrane. The anode is...
View ArticleStudying bi-phase fluid motion in microfluidic channel
Hello all,I am struggling to simulate a bi-phase (phase initialization) flow study in which I want to see how far a fluid goes inside a narrowing pipe when a low pressure is set, and its motion...
View Articlemesh movement and hysteresis Jiles-Atherton model
Hi in case of mesh movement, the hysteresis model does not work and error occurs. I was wondering if there is solution for it?
View ArticleModeling with PNP equation.
Hii I want to model a module in which there are two container filled with some salt soltion let's say 1M Kcl in both sides and in between them there is a nono chanel through which ions can pass...
View ArticleHow to call an Application Method from another Application Method
I have been trying to create one main application method that instantiates and runs other Application methods that I have written. But everytime I try to instantiate another Application Method it says...
View ArticleUsing 2 variables from 2 different solutions to make a single plot.
Hello, I am running two simulations of a model that only slightly vary from one simulation to another, and i have a different study for each simulation. now I want to obtain the data for acosutic...
View ArticleRadio absorption of honeycomb structure with frequency dependant materials
Dear allI have constructed a honeycomb structure of radio absorption in the range of 8.2-12.4 GHz, the permittivity and permeability of the material is frequency dependant, I have defined the frequency...
View ArticleFinding the value of X-axis (any variable) when Y-axis value is given?
I have the attached figure. This has been extracted from a simulation of COMSOL Multiphysics. I want to get the 27.6% of the maximum Maximum Electric field normal (shown in Y-axis) and as well as the...
View ArticleQuestions relating to object location and coordinate changes in Comsol.
Change the location of the 3D CAD file imported from import or Is there any way you can set the coordinates? Files drawn in Comsol can be co-ordinated, but I don't know how to import them. Please let...
View ArticleAn Issue on a quite simple model while doing Time Dependent Analysis by using...
Hello,This is a very simple model with only one block actually. But I have been struggling on this for quite a while.When I disabled the Damper C1, it can pass the test. However, with the damper...
View ArticleConvergence of COMSOL FSI problem for a splitter plate behind cylinder
Hello there, I am new to COMSOL. Whenever I try to run a FSI simulation of a splitter plate behind a cylinder, COMSOL somehow stops after certain number of iterations and in the convergence graph we...
View ArticleOutlet to inlet switching
Hello everyone...I am doing time dependent simulation on a falling film reactor. The study is basically on the mass transfer of gas into the liquid falling film. In my study the liquid film is flowing...
View ArticleSwitching boundary
Hello everyone...I am doing time dependent simulation on a falling film reactor. The study is basically on the mass transfer of gas into the liquid falling film. In my study the liquid film is flowing...
View ArticleGetting quotient of 2 variables from two seperate studies
Hello, Im running two seperate studies and im trying to find the transmittance of the model. To do this i need to divide the total pressure of a SPECIFIED domain in each solution. Im able to easily...
View ArticleImage expored failed, anmation exporting
Dear all,I am simulating a 2D model of pm motor. I need to export the animation as a file. While I exported the animation, it showed the following error, which shows as the image upload 'error'.But, I...
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