falling ball in water
Hi I want to simulate falling of a Aluminum ball in water. Ball initially is 1 meter above the surface of water. is this possible with Comsol? could you please guide me? Thank you
View ArticleWater flowing into an object, and the object deforms such as a waterballoon
Hi, I was wondering if there is a way to have fluid interaction with a solid that will deform like a balloon due to an inlet of water coming into the object. What model library could i use to view...
View ArticleReacting solid
Hello everybody, I’m trying to perform a simulation of gasification. I would like to know if someone knows how to work with a solid in COMSOL. I thank you for your attention and your help. Sincerely Hugo.
View Articleconvergence speed
Hello, In some previous FEA software I looked at, there was an option to limit the degrees of freedom to speed up solution times. In a 3D model for example, one could only look at movement along the y...
View ArticleFluid flow with a moving solid object/hole
Hello, I would like to model the airflow in a room occupied with people, and to allow the people (cylinders) to move around in the room. Is this possible in COMSOL? For a silly example in 2D: I have a...
View ArticleSandwich panel - Solid & shell intercation
I am a new COMSOL user. I am trying to model a sandwich panel maiden of a wood core and carbon fiber skin. My idea is to model the core with solid and the skin as shell. I have already read some topics...
View ArticleCalculating % volume of 3D domain encompassed by a surface
I am running version 4.0a. I have a system with transient diffusion of dilute species (implemented via the 'transport in dilute species' physics) throughout a cylindrical domain. To visualise my...
View ArticleThermal expansion calculation for a system consisting of solid and fluid
I simulate pressure reaction to heat transfer through a water volume (cylinder shape) totally included within a copper cylinder. I assign the materials "copper" to the outer cylinder and "water" to the...
View ArticleCoupling Solid-Beam in a Time-dependent simulation
Hi I am working with a simplified railway model. I wish to couple a beam with the 3D model structure of the rail and to apply a moving (depends on time) force on a surface, by means of the command...
View ArticleSolid and Fluid motion with eigenfrequency study
Hello, I made a very simple geometry in 2D, such as the cross-section of a microcapillary. I want to find some eigenfrequency which can make a few modes on a microcapillary. So, for the shell I used...
View ArticleCouple Solid State Mechanics (solid) to Electromagnetic Waves (emw)
Hello all, I am trying to calculate how the thermal expansion of a particle influences its interaction with a laser beam, but when I try to couple the "solid" physics to "emw" physics in a...
View Articlecontact pair problem in Solid Mechanics
Hi, I was trying to simulate a contact problem. It didn't work so I wanted to try some simple example first. As shown in the attached image, two boxes are in contact initially. The touching surfaces...
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