Mumps is unable to switch to out of core mode: insufficient disk space for...
Hello,How to resolve "mumps is unable to switch to out of core mode: insufficient disk space for out of core mode" error? I am wokring on a workstation, windows 7, 48gb RAM.Any help would be appriciated.
View ArticleMaximum value from each slice of cut planes
Hi,I'm simulating air flow through a tube and looking at difference in presure along the system. I want to graph the maximum pressure along different areas of the system. To do this, I would like to...
View ArticleHydrodynamic dispersion in porous media
HiI'm currently working on a mass induced natural convection 2D problem in porous media (single phase miscible displacement).System description:At the initial condition, component 1 fills a rectangular...
View Articleresistive heating coil simulation
I have a resistive coil from a MEMS. The only data I have to simulate the resistive heating is the input voltage which I can use between 0.5V to 20V and the material of the coil(GOLD). I am getting...
View ArticleDifference between contact pair and identify pair
I am a little confused about the difference between contact pair and identity pair when I do some simulatation of solid machanics . And are there any restrictions of the study type? When we do...
View ArticleDifferent results are strange with same definitions but different physics in...
Dear all,I am simulating a pm_motor that I defined the magnets with Ampere Law. I used the same value of Remenant flux density. When I reached the result, the result in magnetic field is normal but in...
View ArticleLight propagation in waveguide
Can we simulate light propagation in plane tiO2/SiO2 waveguide on silicon substrate? Please help regarding the problem. Thank you.
View ArticleHow to apply frequency shift in acoustic module
Hi all, I am doing research in acoustics module on transducers.Please tell me how to apply frequency shift in acoustics module.Thank u.
View ArticleDifferent results of S11 parameter for different mesh element sizes
Hi,I have achieved two very different S11 parameter plots for the same patch antenna simulation at "extremelly coars" and "normal" element sizes of mesh. I attached these two results as image files to...
View ArticleHow to set user defined Boundary Conditions in poisson equation
Hi, I want to define n ˙∇U = (e2/εε0kBT)σsh as my boundary condition in the Poisson boltzman equation, can some please guide me how to do this. Thank you.
View ArticleHow to simulate AC Multi-turn coil numeric
Hi,I want to simulate the result as changing inductace of coil in an active eddy current sensor with different material target. The Multi-turn coil numeric fuction is selected to simulate regtangular...
View ArticleHow to use the result of each time-step as input to next time-step?
Basically this is how I would do it in hand calculation:T_out_0 = 22 [degC] %% Guessed initial value.%% at t=1:COP(1) = 5[1/K] * T_out_0T_out(1) = T_avg_Domain(1) - COP(1)/7[1/K]%% at t=2:COP(2) =...
View Articleconvective heat flux boundary condition
Hi,I'm confused by the result I got by using convective heat flux boundary condition. Hope I can find the answer here. Thanks a lot.I'm working on a time dependent heat transfer model, one of the...
View ArticleSelection of physics
What physics needs to be used to analyse the stress/strain experienced by a pipe due to fluid flow?
View ArticleEffective thermal conductivity of alloy
Hi all,I am trying to model a thermal crystal made up of Si-Ge alloy and airholes in comsol 5.4, for which i am using linear elastic materials in solid mechanics module. I have already modeled the band...
View Articletriboelectric pressure sensor. electrical fluid solid mechanic
Hi, I am currently working on the development of triboelectric pressure sensor. I am now facing with the simulation of the flowing of the fluid driviive by pressure, interaction of PDMS and my fluid,...
View ArticleElement's Data
There are a simple duct and just laminar flow, Is it possible to extract the velocity of each element at outlet boundary in Time-dependent study at output times without using "excel", I mean using...
View Articlecrash test for batteries
What is the equation to be used for solid mechanics module for crash test of batteries?
View Article2D FSI Failed to evaluate reaction forces
Hi I'm performing a microfluidic FSI: 4us analysisError: Failed to evaluate reaction forcesCOMSOL version 5.3(See attached geometry and input)This is what comes out from my time dependent analysis of a...
View ArticleSimulate voids in soil
Hi, I want to know if someone have already built a model of propagation of EM waves in soil. If yes how? Thanks for your answers!
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