How 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
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.
View ArticleLaser heating of a plate
Hey,im new to Comsol and i want to simulate laser-heating a plate. I used the laser_heating_wafer.mph model as a guideline. But when i change the parameter of the laser-beam-radius to something like...
View ArticleInvoke a property of the material of a certain domain
Hi,For a boundary load, I'm using a variable which depends of certain material properties. It works if I define this properties as parameters, or invoke them directly from the material properties. But...
View ArticleSimulation of LED (InGaN heterostructure)
Hii am working on Light emitting diodes, recently i checked that we can also simulates LEDs with the help of COMSOL, and also from COMSOL official website download example related to heterostructure...
View ArticleProblems of error in the plasticity hardening model: Lamda non positive for...
Hello every experts and comsol users, I made a simulation of laser beam welding and added a temperature dependent plasticity. When the generated stress reaches the initial yield stress, I get the error...
View ArticleThe Pressure Acoustics Impedance coupling
I saw the introduction that in Pressure acoustic RCL model, we can coupling to an Electric circuit model (More advanced circuit models may be entered manually in the User defined option or by coupling...
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