Major News in COMSOL Multiphysics® Version 5.4

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COMSOL Multiphysics® version 5.4 features new modeling tools, important performance improvements, a new Composite Materials Module, and COMSOL Compiler™ for creating standalone simulation applications and digital twins. Using COMSOL Compiler™, applications created with the Application Builder can be compiled and distributed as executable files for anyone to use without license file restrictions.

New Product: COMSOL Compiler™

New Product: Composite Materials Module

The new Composite Materials Module enables modeling of composite laminates by providing a range of pre- and postprocessing tools for structures with tens or hundreds of layers. By combining the Composite Materials Module with new functionality for layered shells, available in the Heat Transfer Module and the AC/DC Module, users can perform multiphysics analysis in composite materials, such as Joule heating in combination with thermal expansion.

An analysis of a laminated composite wind turbine blade. A laminated composite wind turbine blade analyzed with the new Composite Materials Module. A laminated composite wind turbine blade analyzed with the new Composite Materials Module.

Core Functionality Summary

The core functionality improvements of the COMSOL Multiphysics® software includes several features to better organize your model. You have the capability of organizing parameter sets in a model using multiple parameter nodes, as well as the capability of performing parametric sweeps over multiple parameter sets. Furthermore, you can organize most any Model Builder nodes into groups and assign custom coloring schemes to geometry models based on selections. Among the various performance improvements is a new memory allocation scheme resulting in computations that are several times faster in the Windows® operating system for computers with newer processors having more than 8 processor cores.

An example of using colored selections in a large 3D model. Colors applied to the selections in an induction motor make it easier to navigate this large 3D model. Colors applied to the selections in an induction motor make it easier to navigate this large 3D model.

Electromagnetics Summary

For electromagnetics modeling, the AC/DC Module features a new Part Library with fully parametric and ready-to-use coils and magnetic cores. Similarly, the RF Module enhances the RF material library with new substrate materials for modeling printed RF, microwave, and millimeter-wave circuits. The Ray Optics Module features improved modeling tools for structural-thermal-optical performance (STOP) analysis. Finally, the Semiconductor Module brings a new Schrödinger-Poisson Equation multiphysics interface to connect with the Electrostatics interface.

A Petzval lens model using STOP analysis tools in the Ray Optics Module. A new Petzval lens tutorial model illustrates the improved functionality for STOP analysis in the Ray Optics Module. A new Petzval lens tutorial model illustrates the improved functionality for STOP analysis in the Ray Optics Module.

Structural Mechanics and Acoustics Summary

Moving on to structural and acoustics modeling, the Structural Mechanics Module has new tools for shock response spectrum analysis, with two new models demonstrating the functionality. With the Nonlinear Structural Materials Module and Geomechanics Module, you can now model damage in brittle materials as a result of cracking. Fluid-structure interaction (FSI) has been added to the Multibody Dynamics Module for studying problems where a mechanism interacts with a fluid. Meanwhile, in the Acoustics Module, a new port boundary condition makes it easier to compute acoustic transmission and insertion losses, and a new nonlinear Westervelt option allows for modeling pressure acoustics with high sound pressure levels.

A model of a mechanism submerged in a fluid. The closing motion and fluid-induced forward motion of a mechanism submerged in a fluid, using new modeling tools available in the Multibody Dynamics Module. Magenta arrows show structural velocities and red arrows show fluid velocities. The surface is colored by pressure. The closing motion and fluid-induced forward motion of a mechanism submerged in a fluid, using new modeling tools available in the Multibody Dynamics Module. Magenta arrows show structural velocities and red arrows show fluid velocities. The surface is colored by pressure.

Fluid Flow and Heat Transfer Summary

The CFD Module brings two major updates: the ability to model large eddy simulations (LES) and a completely revamped set of modeling tools for multiphase flow, including a brand new FSI interface for multiphase flow. Additionally, multiphysics capabilities have been added to the Pipe Flow Module with a new Pipe Connection multiphysics interface to connect to single-phase flow interfaces. A new heat radiation method in the Heat Transfer Module allows for diffuse-specular reflections and semitransparent surfaces, and you can model heat transfer in thin layered structures.

A simulation of a cylindrical tank with a moving obstacle on the surface. Level set simulation of a cylindrical tank with an obstacle moving back and forth at the liquid surface demonstrating the new FSI capabilities for multiphase flow in the CFD Module. Level set simulation of a cylindrical tank with an obstacle moving back and forth at the liquid surface demonstrating the new FSI capabilities for multiphase flow in the CFD Module.

Chemical and Electrochemical Summary

For users of the Chemical Reaction Engineering Module, there is a revamped Thermodynamics interface and a new application that models the gas-phase conversion of ethylene to ethanol. For electrochemical modeling, the Batteries & Fuel Cells Module provides a new tool for creating lumped models of batteries and Corrosion Module users can employ the Level Set multiphase flow interface.

The Reaction Equilibrium modeling application. The Reaction Equilibrium application is designed to be used as a teaching tool, both to provide an understanding of the dynamics of chemical equilibrium and to show how to compute quantitative results for the equilibrium composition. The Reaction Equilibrium application is designed to be used as a teaching tool, both to provide an understanding of the dynamics of chemical equilibrium and to show how to compute quantitative results for the equilibrium composition.

List of Release Highlights Updates

Core Functionality

  • New Product: COMSOL Compiler™
  • More than one Parameter node in the Model Builder
  • Group Model Builder nodes into folders
  • Coloring of models based on selections
  • Faster solution time in the Windows® operating system

Electromagnetics

  • Fully parametric and ready-to-use parts for coils and magnetic cores
  • Electric currents and Joule heating in thin, layered structures
  • More than 40 new substrate materials for printed RF, microwave, and millimeter-wave circuits
  • New boundary conditions for thin metallic layers and antireflective coatings
  • Schrödinger-Poisson Equation interface for semiconductor simulations
  • New and updated Part Library for ray optics
  • More powerful STOP analysis
  • Optical dispersion models for ray optics

Structural Mechanics and Acoustics

  • Composite Materials Module
  • Shock response spectrum analysis
  • Material activation for additive manufacturing
  • Microstructure modeling based on unit cells
  • Axisymmetric shells
  • Soft connectors
  • FSI for shells, membranes, structural assemblies, and multibody dynamics
  • Mullins effect for rubber
  • Damage models for brittle materials such as concrete
  • Acoustic ports
  • Nonlinear acoustic Westervelt computations

Fluid Flow and Heat Transfer

  • Large eddy simulation (LES)
  • FSI for multiphase flow
  • New phase transport models for free and porous media flow
  • Multiphase flow in porous media
  • Updated Euler-Euler, Level-Set, and Mixture Model formulations
  • New non-Newtonian fluid models
  • Heat radiation with diffuse-specular reflections and semitransparent surfaces
  • Surface-to-surface radiation with arbitrary number of spectral bands
  • Light-diffusion equation
  • Heat transfer in thin, layered structures

Chemical

  • Updated Thermodynamics interface
  • Equilibrium reactions in Maxwell-Stefan diffusion
  • The Reacting Flow multiphysics coupling is now available for the Transport of Diluted Species interface
  • Lumped models for batteries
  • Boundary conditions for membranes, such as for electrodialysis

Ready to update COMSOL Multiphysics®? Click the Download Version 5.4 button, which will take you to the Product Download page. It is easy to download the latest version of the COMSOL® software if you have a COMSOL Access account with your license number linked to it. Simply log in and follow the onscreen product download directions.


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