Solidification countour
Hello! I am new to COMSOL. Is it possible to get solidification counter for metal casting simulation?
View ArticleMoving solid particles in a laminar flow
Hello, I want to simulate moving solid particles in a laminar flow with some obstacles (vertical columns) in their way. What I want to see is that how they get trapped in the gaps between the columns...
View ArticlePipe Flow Module - Coupling Heat Transfer Between Two Pipes
Hello, I am using the Pipe Flow Module to model heat transfer between to concentric pipes. Two pipes with water in them and 0.8 mm of steel between them. I am using a Wall Heat Transfer condition in...
View ArticleProblem: Oil Droplets Seem To Dissolve In Water (Two-Phase Flow, Level Set)
I have a problem with my "Two-Phase Flow, Level Set" simulation in COMSOL 4.2. I am trying to simulate the formation of oil droplets in water by hydrodynamic flow focusing. The water and oil are...
View ArticleFluid-Porous Slip boundary conditon
Hello, I focus now on the flow and solute transportation simulation in the free flow and porous media. There are traditionally one singe formulation, typically Brinkman and two-domain coupling with...
View ArticleResults of JFP model
I got good results for velocity, pressure and shear stress but not good results for shear rate and viscosity as I got step function but actually it must come to be quadratic. I used model with...
View ArticleAssign thermal elastic material and heat transfer to one entity?
Hello! When I use the the Thermal Stress Module I can add a Heat Transfer in Solids. But once I assign the Heat Transfer, the Thermal Elastic Properties of this Selection are cancelled. I would like to...
View ArticleSolar water heater tube with Conjugate Heat Transfer
I have been trying to simulate a tube of a solar water heater. The tube is made of glass, copper, and water. I have modeled the 3 parts in Autodesk Inventor and imported the model into COMSOL as a .stp...
View Articlecell modeling in COMSOL
I am trying to model cells flowing through a 3D microfluidic channel in comsol. I have been having issues getting the results to match what I see experimentally, but I am not sure what factors I am...
View ArticleInvalid property value
Hello community, I have a problem when I run a simulation about particle tracing. Its about the particles in the laminar flow. I can compute the first step , laminar flow, with no problem. however...
View ArticleWhy data points are nonuniform in 1D Plot?
I have plot velocity profile(see attached figure) on inclined plane using 1D plot group but the data points is not uniform. Can anyone please tell me how to set uniform data points in 1D Plot
View ArticleAbout settings of acoustic higher-order mode waves in Acoustics Module
Hi, everyone. As is known to all, the acoustic waves propagating in the duct could be decomposed into multiple modes. The lowest mode is plane wave and other modes are higher-order mode which have the...
View ArticleInvalid property value
Hello community, I have a problem when I run a simulation about particle tracing. Its about the particles in the laminar flow. I can compute the first step , laminar flow, with no problem. however...
View ArticleLiquid droplet displacement on a solid
Hello to everyone, Currently I'm working on the displacement of a liquid on a solid, my goal is to enable the liquid to move from the initial phase to the initial phase (as shown in the attached files)...
View ArticlePredefined announced variables give zero results
Dear All, I am working on the formation of ultrasonic-standing wave using a piezoelectric device acting on a fluid domain which contains suspended particles that is surrounded by PMMA walls. I have 3...
View Articletwo-phase flow_water electrolysis
Hi everybody, I'm developing the model of an alkaline cell for electrolysis of water, thus I need to consider the generation of gas at the electrodes that gives a two-phase flow as a result. I'm...
View ArticleTurbulent intensities
I need to model high Reynolds flow through cylindrical stems in 3D. Is it possible to get components of turbulent intensity as a result? (As far as I understood, by selecting k-e model, turbulent...
View ArticleManipulating heat-transfer coefficient
Hi All, I have 3 domains, from bottom to top iron, air and glas. Iron and Glas are defined as heat transfer in solid, Air as heat transfer in fluids. Iron being heated, the heat flow to air and glas. i...
View Articlefinding a specified flow rate in a '3D cut plane'
Hello, I'm trying to do some postprocessing in a 3D fluid channel flow over a fractured hole. The channel is filled with water and is laminar. Here's what I'm trying to do: 1. cut the surface at an...
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