time and position dependent reaction
Hello everyone, i am very new to this and not sure which moduls of the comsol software are needed to solve my problem. there will be a phase change with heat production(white box-> black box in the...
View Articleinterference between two waveguides.
I want to see the interference between two waveguides. It is simple. There are two waveguides. And laser inputs are on the end of the waveguides. So I need two inputs. By using a boundary mode analysis...
View ArticlePumping from atmosphere to vacuum state
Dear all, Suppose I got a 1 m^3 cube with one pumping port. Is that possible I can simulate the pressure of the cube related to pumping time? Any comments are very welcome. David
View Articlehow to excite coil in 3d
dear all can you pleas etell em how to excite a coil 3D -- kishore Naik Mude
View ArticleJob opportunity in Italy for Comsol experts in Audio Transducer Design
For everyone who may be interested, there is a vacancy in the R&D Dept. of Elettromedia. He will be responsible for FEA optimization of audio transducers for car and professional market. Italian...
View Articlefood dry process
Hi someone has an example file or article on the drying process of a food spherical geometry? Grazia
View ArticleCommon boundary but normal independant
Hi everybody, I am a trainee in Aerospace and I am doing a model about welding, I use Heat transfer and Structural analysis, because I want to make a model of laminate's displacement. I use COMSOL...
View Articlefluid flow with moving mesh ?
Is it posiible to simulate the fish move in the water ? how ? how to set the boundary condition ?
View ArticleChanging the position of an imported geometry in the COMSOL coordinate system
Hi everyone, I'm trying to change the positions of two imported geometries in the COMSOL coordinate system. Unfortunately, after scaling them, they are not placed in the point of origin but somewhere...
View ArticleHow to turn bézier curves into surface
Hi, is it possible to turn a bézier curve into a surface which can be extruded? Thank you for your help. Sandra
View Articleevaluation of the maximum value at the surface
I simulate electric field distribution for to spheres separeted. What I want to do is to evaluate maximum electric field between them using. How do it in the simplest way?
View ArticleSimple Reflectivity/Transmission calculation for RF Air/Glass boundary
Hello. I am an absolute beginner to COMSOL and am hoping to eventually use it to simulate some nanoparticle scattering effects for solar cell applications. I have built a very simple model consisting...
View ArticleParticle tracing boundary issue
Hi, I found strange results when performing Particle Tracing (Comsol 4.2a) simulations. I use the Laminar Flow module to simulate the flow inside a microchannel and the Particle Tracing module to study...
View Articlehow to cut or trim a parametric curve ?
Hi, I'm trying to make a 3D coil using parametric curve and sweep, but I need to cut a part of my curve, I can't change it by equation, so i just need to cut a part of it. In solidworks we used to do...
View ArticleTime dependent adaptive mesh refinement
Hi I'm trying to make a CFD model where the flow is driven by the motion of the walls. To do so I coupled a moving mesh and a laminar flow model. First I solved a simple geometry using 2D axial...
View ArticleCoupling between PDE and Electrostatics
Dear All, Does any one have any experience of solving a steady general form of PDE with steady electrostaics module. I am trying to solve a PDE [ Div(DuE) = 0] where D is the mobility coefficient and E...
View ArticleDrag Coeeficient on a solid particles
Can some one suggest me the procedure t calculate the drag coefficient on a solid sphere in a chamber using lamir flow.
View Articleconnecting CIR to MF physic
Hello, I'm a quite new Comsol user, and I have some questions. I want to excite a coil (mf physic) with an electrical circuit (cir physic) in a 3 D model. I have put a boundary feed and ground...
View Articlefield inside the ferrite
Dear all , i done simulation of two coils with ferrite core ..in the core magnetic flux lines are not inducing ...can anyone let me the problem -- kishore Naik Mude
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