Phase change in porous media
Hello, I am modelling a geothermal system, where a porous rock is saturated with groundwater and heated by an intrusion of magma. I have used 'Heat transfer in porous media' coupled with the 'Brinkmann...
View ArticleLaser Drilling on silicon carbide
I am trying to simulate material removal during percussion laser drilling. The laser(Heat) source must move along the depth of the hole as the material is removed. The material needs to be removed as...
View ArticleDeformed geometry model converges until I try to use the lagrange multiplier
Hi all, I'm trying to model the growth of a cavity in a block of ice in response to a flow of hot air. I have a model that works fairly well, with conjugate heat transfer and a deformed geometry to...
View ArticlePhase Change
Hi all! I want to modeling of phase change in cryogen zone. And i have the problem. 1. What is the parameter "Ratio of specific heats" 2. Transition interval between Phase1 and Phase 2 - how much...
View ArticlePhase change in porous media
Hello! Please, help me. Say, how to create physics to solve the problem of phase change in a porous media. Best regards, Andy
View ArticleHow to set periodic condition from year to year
Hello! I modelling thermo processes with phase change and have very long time of modelling (40-50 year). I want to set heat flux and temperature of surface time depented from year to year. I have data:...
View ArticleHeat transfer in porous media with phase change
Hi! I am modelling water pipes buried in the ground during a year in a cold winter climate. I want to calculate the frost depth in the ground in order to prevent freezing of the water pipes. I am...
View Articlephase change from liquid to gas
how to incorporate phase change module in Comsol.. like in the reaction from liquid to gas transformation.?? -- Surjendu Maity surjendu.iitg@gmail.com
View ArticlePost Laser Ablation - Cooling
Hi, I'm new to COMSOL, I'm currently working on a summer project trying to produce a 2D model of laser ablation. So far I have just looked into the heat transfer module and have kept all parameters as...
View ArticleHelp with simulating condensation from a partially filled closed glass vial...
Hi! I am having trouble with a condensation simulation. A closed glass vial at ambient temp is partially filled with 10 degC water. When it is put in a cold room with temp of 5degC, condensation...
View ArticleHeat Transfer issue in a phase change environment - 1D example
Dear COMSOLers, we are facing the following issue with the Heat Transfer Module. We are carrying out a simulation campaign in order to evaluate the temperature pattern and thermal behavior of a...
View Articleverification of COMSOL for permafrost thawing verification
Hi. I am just new to COMSOL. I am following the attached publication to produce the results. This is application of 2D-HEAT TRANSFER CONDUCTION IN POROUS MEDIA USING CYLINDRICAL CO-ORDINATE SYSTEM IN...
View Articleheat transfer through porous media including phase change
hey gyuys, I want to simulate : 2D cylindrical co ordinate system model heat transfer through porous media including phase change. I want to simulate melting of frozen ground. Can you please provide me...
View Articlesolidification
Hello, I would like to simulate solidification phenomena coupled to fluid mechanics but in COMSOL only apparent heat capacity is available in ready physics. Is it possible to use phase field, level set...
View ArticleModelling seperation of ice and salt
Hello, I am a begginer at CFD modelling, with only basic experience in MATLAB with Euler Methods. My objective is to model the seperation of ice and salt from seawater. This occurs when a liquid is...
View ArticlePhase change not working, warning inverted element
I am trying to simulate the heating and phase change of a low melting point metal. In the mph file that I've uploaded to Google drive (drive.google.com/file/d/0B3QaD21DDcpNeFdlYjJwNWE4Rzg), you can...
View ArticleMushy zone problem
I have found through a number of trials, that in phase change, that the phase-change transition interval value (deltaT 1->2 or mushy zone) somehow plays too significant of a role. This is the range...
View Articlephase change simulation
Dear Sir or Madam, Interested in change phase, I would like to set a simulation to understand the multiphysics phenomena of heat storage in a shell and tube tank between hot water as the heat transfer...
View ArticleModeling gradual solidification
Hi, I'm trying to model the gradual solidification of cast-iron while modeling regions that are still solid, where stresses and thermal expansion still apply, and liquid regions, where the liquid can...
View ArticleEuler-Euler model with phase change
I am trying to model a pipe flow with a two phase system (liquid water - vapour) and I want to implement, among other variables, an evaporation term to the continuity equation to model the change...
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