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Using otherwise similar settings, the double dogleg solver tends to be somewhat slower than the Newton solver on problems where both solvers converge.

Solver Settings. Corresponds to Solver Parameters of 3.5a. Solver tolerances are set here. Computing a Solution Automatically generate a Solver Sequence corresponding to the Study steps and compute the solution. Only generate a Solver Sequence corresponding to the Study Steps. For manual inspection/editing. No computations. 24/12/2011

Can somebody help me with my solver settings confusion. I'm trying to setup a 3D RF module simulation with around 250.000 elements only with periodic boundary condition. I read that I should use GMG with vanka as the smoother but i keep having problems with it (very slow convergence or not even converging).

I am solving a transient model and changed the stepsize in the Times: field in the Study Settings, but the solver is still taking exactly the same timesteps ...

Note: This discussion is about an older version of the COMSOL Multiphysics ® software. The information provided may be out of date. Discussion Closed This discussion was created more than 6 months ago and has been closed.

Computing the Solution. Once the studies are added and defined, the simplest option to compute the solution is to right-click the Study node for a predefined study type and select Compute ( ). This generates the default solver configuration for the corresponding study steps and computes the solution.

From the main menu, click the Show More Options button ( ) and select Study and Job Configurations in the Show More Options dialog box. Then right-click the ...

A model is solved by computing a solver configuration — a scheme for computing a solution. Loosely speaking a solver configuration consists of one or more Solution nodes ( ), and each Solution node consists of a sequence of subnodes specifying how to compute the solution. Typically, such a solver configuration contains information about which physics interface and geometry to use, which variables to solve for, and which solvers to use for the type of study to perform.

Stationary Solver Settings. Stationary solver settings Solver Sequence 1 > Stationary 1 Stop condition for Newton iterations. COMSOL can inspect the stiffness matrix and decide whether the problem is linear or nonlinear We can also explicitly choose linear or nonlinear 24/12/2011. Solver settings more information

When setting up and solving models using any of the physics from the Acoustics Module, an add-on to the COMSOL Multiphysics® software, ...

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Would some one teach me what the solver configuration means? When I follow the inkjet model, it says set "dependent variables 2, mod1_u, ...

Common Study Step Settings. The study steps form a solver configuration that computes the solutions for the study. The study step nodes’ Settings windows contain the following sections (in addition to specific study settings for each type of study step):

To set up the Segregated approach, right-click on the Stationary Solver or the Time-Dependent Solver feature and select Segregated to add a new Segregated feature. Then, right-click on the Segregated feature and add at least two Segregated Steps and select the variables that correspond to the physics that you want to solve within that step.

The process of solving a problem in COMSOL Multiphysics is a hierarchy. ... The solvers also have nodes that can control the solver settings in detail.

Solver settings for COMSOL provides an overview of methods to obtain converged solution for cases with large numbers of degrees of freedom and nonlinearity. Skip to content (614) 861-7015 info@altasimtechnologies.com

Create Custom Solver. From the main menu, click the Show More Options button () and select Study and Job Configurations in the Show More Options dialog box. Then right-click the Solver Configurations node and choose Create Custom Solver ( ). This adds a Solution node without any added solver settings or other nodes.

08.03.2013 · I can do this in comsol 3.5a. Moving mesh is solved using stationary solver and PZT is solved using frequency solver. I used parametric segregated solver in 3.5a to compute the above said operations. 1 Reply Last Post Mar 8, 2013, 2:52 a.m. EST. Ivar Kjelberg "Retired" but still part time CSEM SA (CH)

Under Store fields in output, you can specify to store the field variables that you solve only for some part of the geometry (a boundary, for example, if the solution in the domain is not of interest).You define the parts of the geometry for which to store the fields as selection nodes. From the Settings list, choose All (the default) to store all fields in all parts of the geometry where they …

Solver settings for COMSOL provides an overview of methods to obtain converged solution for cases with large numbers of degrees of freedom and nonlinearity.

Solver Configurations contain nodes that define variables to solve for, the solvers and settings, and additional sequence nodes for storing the solution, for example (see Figure 20-1).The solvers also have nodes that can control the solver settings in detail. Knowing The Relationship Between Study Steps and Solver Configurations is useful to help define and edit the settings before …

COMSOL Multiphysics includes many solvers and solver settings. To make it easier to use a suitable solver and its associated solver parameters, ...

In many situations, the default in COMSOL Multiphysics when having several physics interfaces is to generate a solver sequence with a segregated solver.

Mar 08, 2013 · I can do this in comsol 3.5a. Moving mesh is solved using stationary solver and PZT is solved using frequency solver. I used parametric segregated solver in 3.5a to compute the above said operations. 1 Reply Last Post Mar 8, 2013, 2:52 a.m. EST. Ivar Kjelberg "Retired" but still part time CSEM SA (CH)

Solver Setting for Effective Analysis in COMSOL Multiphysics Dates and Location. The course will be live and interactive. Objective. This course provides an overview of the methods to obtain a converged solution for cases with a large number... Cost. The cost for this course is $800 per person. ...