Pipe Model for heat transfer (Conjugate heat transfer)
Dear All, I solving the conjugate heat transfer problem. The problem definition is: In a shell and tube configuration, the heat transfer fluid is flowing in tube with some velocity and shell side is...
View ArticleHow to deal with meshing for the thin bodies
Hi All, I am dealing with some very thin bodies, let's say, the thickness is 2mm, and width is 1000mm. I encounter difficulity to mesh these thin bodies. Do anyone have some suggestions? Thanks.
View ArticleSimulate an on-chip inductor
Hi :) I am new with Comsol and I am trying to draw an on chip inductor (the square shaped one) and then I want to study the electromagnetic effects and the properties (L and Q..) How can I draw the...
View Articlesection view
I want to view a section through my geometry once the analysis has run. How to I go about this? Thanks, Christabel
View ArticleProblem: Cylinder appears to be block
I am quite new to this program and I tried to do create a 3D circular duct. I selected Cylinder and chose a radius of 0.004 m. In case of a short height compared to the radius, the cylinder keeps its...
View ArticleHow to change coordinate x to y in 1D?
Hi, Does anyone knows how to change the coordinate x to y in 1D model? I need to do an analysis of Darcy Law using the gravity effects (Buoyancy), but I couldn't rotate from x to y coordinate. Any...
View ArticleUnexpected behaviour while creating geometry
Dear all, I encountered the following problem while using Boolean Operations on Ellipsoids and Blocks: The attached image shows a cut plane inside the final 3D geometry, which looks like it should. The...
View ArticleMesh Control and Periodic Boundary Conditions
Are mesh control boundaries compatible with faces that are part of a periodic condition? I have a mesh I'd like to optimize with the mesh control operations but so far I've noticed that if the mesh...
View ArticleDifference in 3D simulation of duct to rotated 2D simulation?!?
Hi everyone! I created a simulation for a circular duct which is heated by a constant heat flux. Does it make a difference to simulate a 3 dimensional geometry or a 2 dimensional geometry (rectangle:...
View Articleplease help me how to eliminate the perspective effect .... how do you...
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View ArticleTrouble with meshing/geometry
Hello everybody, I would like to ask for some help with my model. Basically, I have a parametric curve which is then revolved to form a spherical shell. The parameters of the curve will later be...
View Articlehow to model pipe with angle
Dear friends how to model pipe with angle in comsol. this structure is possible without meshing problem? can anybody help me Please find the attachment
View ArticleElectric Field
Where can I get a tutorial about how to simulate a electric field with some geometries, I am new in comsol thank you
View ArticleConstruction sequence - tunnel
Hi everybody! I'm playing with tunnel construction process. Mainly, construction process can be divided into two repeatable steps: 1. excavation 2. lining installation I'm modelling construction of...
View ArticleConvert 2D to 3D
Hi, I imported an on chip inductor that I draw in Layout Cadence (Format *.gds). The inductor is in 2D and I want to convert it on 3D in COMSOl so I can go further with my work.. How can I do this in...
View Articleheat transfer optimization
I would like to ask some question about optimization. i have try to optimize my heat transfer model,but i dont know how to define the objective function. i would like to optimize my model to decrease...
View ArticleParametric Surfaces to 3D object
I've been attempting to use two parametric surfaces from interpolations to define the shape of a 3D solid domain. I'm following steps similar to those used in this previous thread...
View Articleconversion from 2D to 3D
hello, I am building a 'comb drive' model, in the 'electrostatics' division of the 'AC/DC module' in COMSOL 4.2. I need to 'extrude' a 2D model into a 3D one. How do i do that? Thank you
View ArticleHelp me! Error"Internal error in boundary respecting."
Hi, all I want fix it, It is coordinate (-2,06378, 1,35209, 2,8034) Thank a lot Vinh Nguyen
View ArticleHow to deal with meshing for the thin bodies
Hi All, I am dealing with some very thin bodies, let's say, the thickness is 2mm, and width is 1000mm. I encounter difficulity to mesh these thin bodies. Do anyone have some suggestions? Thanks.
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