Cluster computing got stuck :external progress scheduling
Dear Mr. Shuhong, While trying to solve a particle tracing model on a 3 computer cluster (1 headnode running Windows Server 2008 R2 and 2 compute nodes running Windows 7) via HPC Server 2008 R2 Pack ,...
View Articleboundary condition
I m new in comsol. i m trying to find capacitance of an electronics device . but i did not get exact result. there is little bit difference between simulated data and expected result. i think my...
View Articlecapacitance including fringing field
hello sir i am new in comsol. i am trying to find capacitance of a device ..when voltage of drain=voltage of source=0 volt and gate =6 volt. but i don't know how to put boundary conditions on the...
View ArticleFiber Bragg Grating simulation using COMSOL v3.4
Hello ppl, Im new here. Im doin thesis on Fiber Bragg Grating simulation. Can anyone help me on FBG issue that is it possible to design Fiber Bragg Grating using COMSOL v3.4? Let me know ASAP plz. Thanks.
View Articlejava.lang.ClassCastException when using LiveLink from MATLAB
Hi there, I've been successfully using COMSOL and LiveLink for a few months now for generating and simulating electromagnetic models. However, yesterday I ran the same MATLAB code as I always do, but...
View ArticleEmpty parameter list
Hi everyone, I'm beginner to COMSOL and I'm modeling hyperthermia cancer treatment with magnetic nano particles. I'm using bioheat transfer for the body cells, mixture model for modeling nano particle...
View ArticleWill the increase of the relative tolerance reduce the solving time ?
Dear all, as mentioned in the title, I would know if the change (specifically an increase) of the relative tolerance in Time Dependent solver (but also in Stationary solver, why not) will reduce the...
View ArticleCan cut line result be used in simulation?
I am currently using comsol to simulate a concentration lets name it C on a 2D symmetry rectangle. at one point I need to take a boundary value of C, I am wondering if there is anyway I can take the...
View ArticleHow to use Two Different Times steps in Solver Parameters?
Dear Sir, I am using COMSOL 3.5a. And I am running my simulation for 6hrs. But I want to run my simulation in two different time parts. (i.e. for 1hr i used solver parameters for time stepping range is...
View Articleaxisymmetric hollow cylinder model with Boundary condition
Hi, I want to draw a axisymmetric hollow cylinder model which is cut axially along the length. The inner tube radius is 12.5mm, shell side radius is 25mm, with length of 1.5m. Also how i have to given...
View Articleautomatically shutdown
Ivar, Hi, this is Zhengliu from UCLA. I got to know you from the COMSOL forum, where you have been active in giving professional advice on many aspects. I really hope you could give me a hand regarding...
View Articlecapacitive accelerometer
hi, my project is capacitive accelerometer.i am totally new to this sofware.so can you please help me out with my problems. for a start i need a structure for comb drive actuator which i will be using...
View ArticleRF Module: material dispersion for transient simulations
How do I simulate structures with dispersion using the transient solver in RF module? I am new at this, so any examples or step-by-step tutorials would greatly be appreciated.
View ArticleMaximum values over time in a 2D spatial domain
I am running transient simulations of solute transport in a 2D domain. I would like to find a 2D spatial profile of maximum value of solute concentration over simulation time, which may not occur at...
View Articleout of memory during assembly
Hi All, I am running a heat transfer with radiation, and the error message says "out of memory during assembly". Rigth now, I am using a workstation with 48GB memory. I check the element number, and it...
View ArticleDarcy Law using PDE
Hi, I'm trying to implement the Continuity Equation with Darcy law and the Energy equation using a PDE (base package). The Darcy equation in the continuity is u=-(k/mu)*d(p,x) where k is the...
View ArticleCluster computing got stuck :external progress scheduling
Dear Mr. Shuhong, While trying to solve a particle tracing model on a 3 computer cluster (1 headnode running Windows Server 2008 R2 and 2 compute nodes running Windows 7) via HPC Server 2008 R2 Pack ,...
View Articleboundary condition
I m new in comsol. i m trying to find capacitance of an electronics device . but i did not get exact result. there is little bit difference between simulated data and expected result. i think my...
View Articlefor zero charge at infinite boundary
for zero charge at infinite boundary can u give me the link or pdf of (model.acdc.geoelectrics.pdf ) document
View Articlecapacitance including fringing field
hello sir i am new in comsol. i am trying to find capacitance of a device ..when voltage of drain=voltage of source=0 volt and gate =6 volt. but i don't know how to put boundary conditions on the...
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