COMSOL partners with several material manufacturers to make their material property data available in the COMSOL Multiphysics® software for certain modules that need them. Including real material data leads to models that accurately reflect how a design will appear and perform in the real world. Note that some add-on products to COMSOL Multiphysics® include other relevant material properties in ad

In this keynote talk from the COMSOL Conference 2023 Munich, Dr. Friedrich Maier of Sartorius discusses the intricacies and advantages of biopharmaceutical product development and shares Sartorius' strategic focus on the biopharma market. Maier focuses on the mission of Sartorius’ Computer-Aided Engineering (CAE) department for this product development and discusses how they are using the COMSOL M

A nonlinearity can be introduced into a model either in the governing equation or by making any of the material properties, loads, or boundary conditions dependent on the solution. Multiphysics problems are often nonlinear. Stationary (time-invariant) models with nonlinearities may converge very slowly. In this article, we will outline different approaches you can use to improve convergence when s

Error: Failed to Find a Solution. Returned Solution is Not Converged Problem Description I get this message: Failed to find a solution. The relative residual (0.28) is greater than the relative tolerance. Returned solution is not converged. Messages similar to this are returned for nonlinear problems that fail to converge, but also sometimes for linear problems. When solving either a linear or a n

COMSOL Multiphysics® has functionality and capabilities for importing topological data, meshes, and images to your model. Below, in subsequent sections, you will find information on how to do so. We also direct you to resources that provide further details and examples on how to perform these tasks. Importing Meshes Both image processing software programs Mimics and ScanIP can export volumetric me

The Geometry branch in the Model Builder tree consists of a sequence of geometry operations. This can include sketches, geometric primitives, imported CAD files, Boolean operations, etc., that can be used to create the geometry that you want to model. At the end of this sequence, there is a Form Union node, and you have the option to change this to Form Assembly. This choice of method influences h

COMSOL® ソフトウェアを使う際にはこれらのドキュメンテーションを参照し, ダウンロードして下さい. 完全な製品ドキュメンテーションはインストールプロセス中またはソフトウェア中のヘルプメニューで見つけることができます. COMSOL Documentation Easily access, navigate, and search all of the COMSOL documentation, including comprehensive guides for using the software, programming, installation, and more. Access the Documentation

How to Install COMSOL Multiphysics® The guide below features quick setup instructions for installing COMSOL Multiphysics® on Windows®, with notes when the process differs for macOS and Linux® operating systems. Descriptions of optional settings available in the COMSOL installer are included as well. Installing COMSOL Multiphysics® following these instructions requires a license for the software. N

Problem Description COMSOL is slow to open and the operation in the User Interface feels lagging on my new computer. What can I do? Solution The most common reason for this kind of behavior in newer computers relates to the power settings. Newer computers often come with a power plan implemented by the computer vendor that is optimized for energy efficiency. Such a power plan can limit the speed o

Using AMD® Optimizing CPU Libraries (AOCL) in COMSOL Multiphysics version 6.2 Platform: Windows, Linux Applies to: COMSOL Multiphysics® Versions: 6.2 Description Version 4.1.1 of AMD Optimizing CPU Libraries (AOCL) is a custom AOCL build optimized for COMSOL that is included in COMSOL Multiphysics version 6.2 as alternative BLAS and LAPACK libraries. When using AOCL 4.1.1 on computers equipped wit

Problem Description Version 4.1.1 of AMD® Optimizing CPU Libraries (AOCL) is a custom AOCL build optimized for COMSOL that is included in COMSOL Multiphysics version 6.2 as alternative BLAS and LAPACK libraries. COMSOL Multiphysics 6.1 included AOCL version 3.2.1. What performance improvements can be expected from this different version of AOCL? Solution To get the best performance out of computer

Thank you for joining us for COMSOL Day: Version 6.2! Access the presentations from the event in an archived format here.

Platform: All Platforms Applies to: COMSOL Multiphysics® Versions: 6.2 Problem Description This page contains an overview of known issues in COMSOL Multiphysics® Version 6.2 Build 278, released on November 7th 2023. If you are running this version, we recommend that you update to Version 6.2 Build 290, released on November 16th 2023. Solution Known Issues and Resolutions in COMSOL Multiphysics® Ve

Description Please note This entry concerns COMSOL 6.2. For COMSOL 6.1, please see Knowledge Base 1300 System Requirements COMSOL 6.2 for macOS Intel can not be used under Rosetta on Apple Silicon computers. For the CAD Import Module and the Design Module, file import of the IGES and STEP, file formats requires Rosetta 2. Notes on Performance For optimal performance COMSOL uses only the performanc

The withsol operator allows you to extract the solution from any solver sequence in the current model and use it in other studies, or during postprocessing. Comparing the Results Between Two Studies Let us consider a simple thermal example. A steady-state simulation of a square with a temperature of 20ºC on the left-hand side. We run two studies in the model. One where the temperature on the right