pressure coefficient
hi, how i can calculate pressure coefficient for a cylinder with attached splitter plate in fsi modolus?
View ArticleTwo phase flow - Problem
I am stuck up with a 2 phase problem. The idea is to track surface deformation (with time) while a slug is rising into a conduit. Can you provide any help? Thanks in advance,
View ArticleCoefficient of isotropic diffusion in icp_torch model
Hello, I have one question to the developers of icp_torch model of PLasma module- Equlibrium discharges. What does mean the isotropic diffusion coefficient in this model in main laminar flow settings...
View ArticleTry converting to triangular mesh on these faces
Dear sir, While meshing my model, only one domain didn't get meshed. And the error shown for a face which is not meshed is "Try converting to triangular mesh on these faces". And, I was not able to...
View Articlelake's hydrodynamic
Hi, I have imported a lake's dem to study circulation and hydrodynamic, but i don't know how i can work with it. Can anyone help me????
View Articledem
Hi, i have the dem of a lake...how to estrapolate the volume of the lake in order to make simulations????
View Articlepick the value at a specific time and parametric sweep
Hello, I made a parametric sweep, now I want to pick the value of a probe at a specific time and sweep-parameter and put it into a variable. How can i do that? I thought about something like this:...
View ArticleCOMSOL Limitations with Turbulent Two phase flow?
Hi, I am working on a problem pertaining injectors. I am using the Fluid flow physics module and in particular the Turbulent two phase module. I have gone through the benchmark models and tutorials...
View Articlecone-jet mode in electrostatic field
Hi, Here is my problem. I want to simulate a electrohydrodynamic (EHD) phenomenone , a nozzle with full water (or electrolyte) in a electrostatic field, the the water is polarized and deformed the...
View ArticleFinite Elements for Fluids P1+P1 P2+P1
Dear Comsol users, Comsol sets P1+P1 elements as default for laminar flow described by Navier-Stokes equations. As far as I know, theoretically, these elements are not good for such equations. Instead,...
View ArticleCoupling of two laminar flows
Hey, I'm trying to solve a system where I have an aqueous phase flowing over a well filled with an oil phase. Flowing aqueous phase will cause convection in the oil phase. I've tried to implement this...
View ArticleEffective porosity in porous media
I'm using the sub surface flow module to simulate flow in porous media. Among the input data comsol requires porosity. It means just porosity or effective porosity?
View ArticleParticle tracing - particle counting
Hello to everyone, Im new to COMSOL and currently trying to work with particle tracing for fluid flow. The model we are working on is part of vascular network and we are using as physics : structural...
View ArticleHow to give a boundary of rotating to structure in Fluid-structure...
I want to study fluid-structure interaction of wind driven generator, but can't find the structure boundary of rotating , and I can't give the wind driven generator rotate speed, can someone helps me?...
View ArticleFlow across a semi-permeable membrane
Hi , I am trying to model flow through a semi-permeable membrane due to a pressure gradient. For now, I am using free and porous media flow physics and for my geometry, I have set up 3 rectangles next...
View Articlehow to simulate mixture model in contact with structural model?
hi I want to couple mixture model with structural. But in mixture model I can't define the loading or displacement induced by structural model. can anyone help me? regards
View ArticlePCM 3D model not working
Dear all, I have created a simple model for phase change of a PCM material in COMSOL 4.4 and 5.0 by using the physics heat transfer in fluids and laminar flow. Conditions applied are for heat transfer...
View Articlecalculate the concentration of oxygen through porous support
Hi, It is the first time I used Comsol, my project consist in the measure of gas permeability through porous support. Within Comsol I have already create the plan geometry and put the boundary and area...
View Article2d axisymmetric problems
Hi all, I'm having a few issues with axisymmetric modelling in Comsol5.0. I'm trying to model fluid flow in a tapering duct. I've drawn the geometry based on co-ordinates shown in figures exported from...
View Articlepressure drop calculation
Hello, I have a fluid flow exercise, I am trying to compute the pressure drop inside a channel and I am using the "Surface average" function to compute the pressure drop. I am getting the same result...
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