Comsol multiphysics tutorial example 1 5.4
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- #Comsol multiphysics tutorial example 1 5.4 how to#
- #Comsol multiphysics tutorial example 1 5.4 software#
- #Comsol multiphysics tutorial example 1 5.4 plus#
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This algorithm is always used whenever the Continuation Method feature (or the Parametric Sweep feature) is used on a single parameter when solving a stationary problem. Discussion Closed This discussion was created more than 6 months ago and has been closed. I simply followed the steps of the 'Compression of an Elastoplastic Pipe' model given in Comsol file. To start a new discussion with a link back to this one, click here. A Global Parameter has to be introduced (in the above screenshot, P) and is ramped from a value nearly zero up to one. The Auxiliary Sweep can be used to implement ramping of any Global Parameter. The Continuation method is enabled by default when using the Auxiliary sweep study extension, as shown below. Browse the threads and share your ideas with the COMSOL community. or natural frequenciesare certain discrete frequencies at which a In that case, the solver will be able to find the approximate failure load of the system, which is also very useful information.
#Comsol multiphysics tutorial example 1 5.4 software#
By default, the COMSOL Multiphysics software determines these values heuristically depending on the physics as, for example, the specified initial values or a solution from an earlier study step. When continuation is enabled by setting Run continuation for to one of the parameters. Please login with a confirmed email address before reporting spam. The feature is designed to be used as a density method, meaning that the control parameters change a material parameter through an interpolation function.
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The equation to be fulfilled is that the average displacement (defined through an average operator) should be equal to the continuation parameter (called disp in the screenshot below). The number of increments may need to quite large, and you will want to monitor at what values of the ramping factor there is slow convergence of the solver. Posted à 09:36 UTC−7 Acoustics & Vibrations, Results & Visualization, Studies & Solvers Version 4.2a 3 Replies The other way is to define a "Solver Continuation" sweep (under the Solver node tab), here you do not add an external Parametric Sweep node, but you tell the solver to loop around (and only the solver node, not the geometry, nor the mesh). The information provided may be out of date. Hi everyone, I have a simple … Right-click study 1 … Stationary (time-invariant) models with nonlinearities may converge very slowly. I defined a "flag" in the parameter list and use it as continuation parameter. Parcourez les fils de discussion et partagez vos idées avec la communauté COMSOL. The other solver parametric sweep is done i.e.
#Comsol multiphysics tutorial example 1 5.4 plus#
In both cases, a Stationary Solver node plus a Parametric attribute is used. If no continuation parameter is given, a plain sweep is performed where a solution is sought for each value of the parameters. First voltage sweep with field-independent mobility by setting the continuation parameter cp to zero. This helps an easier ramp-up of the applied voltage V0 from equilibrium to the operating voltage of 1000 V. We demonstrate by studying a p-i-n diode's electronic response to ionizing radiation. Add depth as the continuation parameter, and click the range button.
#Comsol multiphysics tutorial example 1 5.4 how to#
How to use multiple parameter to generate the desire probe plots. The last step before computing the model is defining a range of depth parameters for the parametric sweep. The latter basically ramp the doping and the themionic current to their final values." Is there a way to access the parameter value during solution for tuning? 80 Parameter value list (elastoplasticity) Posted г., 01:56 GMT-7 3 Replies. At the center of rotation, the resultant of the gravity load P = 500 N) is applied to the inner ring. The COMSOL discussion forum covers a wide variety of simulation topics. I want COMSOL to change the parameter by 0.2, and then solve the model, and then change the parameter by 0.2 again, etc. Adding a Global Equation to control the load. By tuning the continuation parameter the solver should use a step of flag/10 during solution process. Note: This discussion is about an older version of the COMSOL Multiphysics. Add-on modules provide specialized functionality for electromagnetics, structural mechanics, acoustics, fluid flow, heat transfer, and chemical engineering. The COMSOL Multiphysics ® software brings a user interface and experience that is always the same, regardless of engineering application and physics phenomena. Solved with COMSOL Multiphysics 4.4 2 | MODELING FRICTION BETWEEN CONTACTING RINGS.