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Error while processing

Sir, While computing the results for my model, I got an error which says" Failed to find consistent initial values. Segregated group 2 Out of memory during assembly. Last time step is not converged. -...

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Heat loss in hydraulic hose

Hi, I'm working on an project where it's in my interest to find the heat loss to the surroundings, from the hydraulic fluid inside a hose. I have access to Comsol Multiphysics 4.3 through my work and...

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Topics

Hi, Please send to me the news related to these topics. Thanks

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RF Source

Hi, I want to apply a current or a voltage source to a rectangular surface in a COMSOL RF module problem. Would you please let me know how I can do that? Regards, Elham

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Inconsistent uni-directional constraint with Conjugate Heat transfer

I am trying to model a simple high temperature hydrogen heat exchanger with the conjugate heat transfer module. While I have been sucessfull in modeling individual tubes of the hydrogen alone, I cannot...

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Adding a Faxen Force on Stokes drag force in Particle Tracing Module

Hi everyone, I am trying to use the particle tracing module with a non-uniform laminar flow in a channel. I am using "Drag Force" to trace the particles' motion. However, the Stokes force is defined...

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Failed to find the consistent initial values

Dear sir, I am getting an error after solving as follows"Failed to find the consistent initial values Last time step is not converged. - Feature : Time - Dependent Solver1 (sol1/t1) - Error : Failed to...

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How to reduce numerical diffusion problem when simulating micromixing

Hello Comsol friends, I have a short question - my simulations of micromixing exhibit rather fast mixin compared to the measured results, especially at high Peclet numbers (~ order of Pe~ 10 000). I've...

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hello!

hello! are you Persian? I am Persian. can you help me about problem in comsol? best regards

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How do I model two different fluids in one domain?

Hi, I am new to COMSOL, and am trying to model a microfluidic device that has two fluids, each with a different conductivity. I tried building a geometry with two domains that are a union with an...

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exporting 3D simulation's output data from model 1 and importing as input...

Hi, I am trying to simulate on micro-mixer with 3D structure. I am having trouble with importing the model 1 output data to the model 2 input profile correctly. I tried using the interpolation function...

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Inductively coupled plasma-High vacuum-Laminar flow-Free Molecular Flow-times...

hello! *** first question: I try to simulate the device using the PLASMA MODULE (inductively coupled plasma) and LAMINAR FLOW in a vacuum (10 millitorr). The problem is that when I run the solver, had...

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about 'Warning : Re-ordering of null vectors failed"

Dear all, I'm trying to simulate the dynamic behaviors of the linear control solenoid valve. The spool motion is determined by the force balances, which are calculated from each field, and a...

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Consistent error while computing the results for the model built

Sir.. I am working on a building model with pipes embedded in the ceiling for Concrete Core Cooling. I am getting a continuous error even after many corrections. The error says Failed to find...

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how to enter a Channel thickness

Hi everybody, how to enter the Channel thickness? I use the (laminar flow -> mass flow -> mass flow rate -> normal mass flow rate), but get an error! I read a comsol documentation and I think...

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Joule Heating and Laminar Flow in microfluidics

I'm trying to find the temperature distribution in a microfluidic channel. The heat is generated by two electrode in a microfluidic channel. When I create the model without laminar flow everything...

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Particles traveling through boundaries

Hello All, I am attempting to use the particle tracing function on a laminar flow in a small channel with obstructions in the channel. I modeled the design after the lunchtime seminar on the particle...

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Heat loss in hydraulic hose

Hi, I'm working on an project where it's in my interest to find the heat loss to the surroundings, from the hydraulic fluid inside a hose. I have access to Comsol Multiphysics 4.3 through my work and...

View Article

Topics

Hi, Please send to me the news related to these topics. Thanks

View Article

RF Source

Hi, I want to apply a current or a voltage source to a rectangular surface in a COMSOL RF module problem. Would you please let me know how I can do that? Regards, Elham

View Article
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