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加拿大名校学历证明869520616微Q留学生咨询阿尔伯塔大学UA学历毕业证修改成绩单加拿大毕业证书国外学位证学历认证书真实留信网认证University...

University of Alberta

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伪造海外毕业证证明马萨诸塞大学阿默斯特分校毕业证文凭869520616Q/微制造美国成绩单假毕业证美国大学学位证国外毕业证文凭留信网认证学历学位认证Uni...

UniversityofMassachusetts Amherst

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【美国学历证明】纽约州立大学SUNY毕业证成绩单869520616微/Q咨询国外假证美国学位证书美国证件美国假学历假毕业证书美国学历文凭学历认证State...

State UniversityofNewYork

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Defining Objective function in Optimization

I have an already working simulation in COMSOL and want to extend it to include optimization but have difficulty in defining Objective function. always get an error message ".... undefined" although...

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Transport of diluted species coupling with a previous study

Hello everyone,I'm having some trouble coupling two different transport of diluted species studies. The process is like this:First: In study 2 Time dependent, I run TDE for one specific hour...

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Why does it take forever to cancel an operation?

The below post is related to an archived discussionDoes anyone know why it takes so long to cancel an operation? Some times longer then an hour.

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Please somebody help me

I want to design a simple buck converter in COMSOL. I have face a problem using comsol. As there are four terminals of MOSFET Drain, source , gate and bulk. Now the problem is how to give pulse wave...

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Conservative and non-conservative forms

I wish to understand in more detail what Comsol is doing to my equations when using the conservative form in the advanced physics settings in transport of diluted species. On the surface, it seems like...

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Comsol Livelink for Matlab, property for Line markers of 1D point graph

Dear All, I have a question that could be straight forward but I can not find its solution. I appreciate your help. I am using Comsol Livelink for Matlab to program a comsol .mph file. everything works...

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Rotation of vector field in Comsol

Hello,I intend to rotate the displacement vector field solution in Comsol. I have a C6 symmetric structure, and I want to rotate the solution by 60 degrees.I tried to do the same via Sector3D option in...

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Help Regarding Modelling and Simulation of Gas sensor for detection of...

sir, I want to model and simulate gas sensor for detection of some harmful gas but found some problem as follow:How to made sensor with given specification of material and thickness on substrate?how to...

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Why the negative and positive stress when thermal expansion/contraction?

Hi there,I'm some confusing on the stress tensor values when conducting the thermal expansion in linear elastic model. Why the y-stress values are oscillating between zero. Is it because of the...

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Problem with surface integral of the elerctric energy density

Hi,I have a simple model of two metal electrodes (cubes) in vacuum box (also cube). In the simulation I calculate the electric field using the electrostatic module. Then I want to calculate a surface...

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Digital Marketing Services in Hyderabad India BOXFinity

BOXFinity is one amongst the digital marketing companies in Hyderabad that works for the digital marketing services like SEO, SMO, PPC & more..

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how to install the comsol remotly without the gui interface.

Dear sir:  I need to install comsol in my linux cluster remotely which has no gui interface. But the default setup of comsol is conducted under the gui interface. Could you please give me some...

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creep Fatigue in solder Joints

Hi, im using Comsol 5.3a (academic Licence) and im trying to simulate the creep Fatige (Deformation) in solder Joints. Im Using in my modell a FR4-PCB with a normal SMD-Resistor and for the solder...

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Incompressible and isotropic Newtonian fluid water film flowing downwards on...

HI, I am trying to model a water film that flows downwards on a wall surface and then hits a horizontal obstacle to change direction. For the boundary conditions: The water fim has a inlet velocity of...

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How to make a parametric sweep faster

HiI'm making parametric sweeps to find the best geometry of a specific model. The model has three main parameters. I assign different discrete values for them using the parametric sweep node in order...

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shape memory alloy

Hi there, I want to do simulation of shape memory alloy spring using comsol, but i am not getting how to apply the shape memory effect on comsol. please help

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When to solve for the electric scalar potential in eddy current problems?

Hello,I have been discussing with a colleague of mine, in which cases of eddy current problems the electric scalar potential needs to be solved, additionally to the magnetic vector potential.In this...

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