Thermal Expansion
The below post is related to an [archived discussion](/forum/thread/39909/adding-thermal-expansion) [start here]I have COMSOL 5.2 and am using the Structural Mechanics Module for the Physics. There is...
View ArticleHow can I avoid electromagnetic waves entering from the sides?
Hello to allI'm failing in simulating the fresnel equations in 2D as a small exercise with Comsol.As you can see in the model added to this post, the reflectance and transmission in the global plots...
View ArticleError with multi turn coil
Could not determine the center of the circular coil.Getting this error when i try to build 3d multi turn coil with ferrite barPlease help me to resolve this https://ibb.co/r381CtY
View ArticleThere is no domains in my model when I delete some undesirable surface.Thanks...
I want to delete a circle in a cylinder.So I do a boolean operation between two cylinders,and deletes some face between them.But after that,there is no domains in my model.
View ArticleSubmarine cable model
Hello! Cable losses in official submarine cables follow the law of conservation of energy, that is, the sum of core loss plus metal sheath loss plus armor loss is equal to three times the square of...
View ArticleHow to use moving mesh?
Hi there i am using comsol 5.2. I have a geometry in which two ring magnets are used. I want to find the force on upper ring magnet. i also want to move the magnet at a distance of 1m, for which i want...
View ArticleSAW based acoustic streaming
Dear all,I would like to model acoustic streaming in a microfluidic channel without having the need for modeling the IDT generating the SAW. Is this possible? And how can these running SAW waves be...
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How i can design this geometry
hello guys,I'm student in second year of master, option Physics and Radiations Techologies, My final project about Heating Transport and Thermomechanic of Triga Mark II Nuclear Recator, i want a method...
View Article2D Axisymmetric particle tracing
Hello friends,I'm doing 2D Axisymmetric particle tracing. I could visualize the velocity of the base fluid in 3D. But, I could not do the same for the particles. I need to see them in 3D. Anyone can...
View ArticleApply physics to each object (Application builder)
Hello, I'm generating a vector of circle objects programmatically (2D), this works well, but I want to apply an acceleration to each generated circle (different in each one).To apply the acceleration...
View ArticleDrawing a group of
Dear all, Hoping all of you is well. I need to draw a group of nanowire doping by N & P concentrartion. How can I choose this doping? which module? Please advice.
View ArticleComparing Two Files (resolved)
Hi,I've created a file according to a turorial, but I got some errors when I have it try computing the results. I can't see why the error occurs (it says a variable is undefined but it is set up jsut...
View ArticleInterpolation file for heat source
Good afternoon, colleagues! Help me please! I work in Somsol 5.3. I use the file with coordinates and power of heat source for the 2D model. x y power -0.5 0.5 0.033745233 -0.5 0.3 0.008032953 -0.5 0.1...
View ArticleGrille boundary condition
I am having difficulties implementing the Grille boundary condition in Laminar flow (spf) in COMSOL 5.2a.Whether I set the quadratic loss coefficient (qlc) under the Grille Boundary node to zero or any...
View ArticleConditional boundary condition
Hello all I am simulating a peristaltic wave in a tube. I want to apply the inlet boundary condition as following: inlet is open and when the pressure at the inlet drops to some certain amount it...
View ArticleThe Reflections of Ultrasound of an Obstacle
Hello!I built a model of acoustic interface which consists of a water domain and there is an obstacle(acrylic) inside. The transducer (PZT-5H) will transmitted a wave and will received it back after it...
View ArticleHow to add geometry between studies in Comsol Multiphysics?
Hi Is it possible to add geometry between the studies and use the result of a previous study to solve the next one? I am going to simulate this situation (simple heat transfer in solids 2D): 1. One...
View ArticleAbout Pulse voltage
hello I want to apply a pulse voltage in anode, so i I defined an analytic function as follows:flc1hs(sin(2pit/0.0002),0.0001)E_cell. But when i compute, the follow problem has occurred: 变量未定义。 - 变量: c...
View ArticleElectrodeposition
Dear All, I am working on a project " Pulse plating on silver anklet " using pulse plating technology where particle size will be nano size. I need to analysize the current density,duty cycle and...
View ArticleNeed Help
If someone is there who can help me by create an IGBT-Module, please let me know.
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