COMSOL Day: Version 6.3

COMSOL Multiphysics^® version 6.3 delivers new simulation capabilities, significant performance improvements, and user interface enhancements. The new Electric Discharge Module enables detailed simulations of discharges in gases, liquids, and solids while GPU acceleration offers up to 25x faster acoustics simulations and surrogate model training. New geometry preparation tools automatically remove small geometric details for faster and more robust simulations. A new interactive Java environment supports on-the-fly model modifications using the COMSOL API for use with Java, with an optional chatbot tool providing contextual assistance for Java programming.

For structural analysis, multiphysics capabilities have been added for modeling the electromechanics of thin structures and moisture-induced swelling, and new features simplify modeling of spot welds and fasteners. Fluid flow modeling has been extended with Reynolds-stress turbulence models for simulating anisotropic and separated flow patterns.

Electromagnetics simulations now offer more accurate electrostatic force calculations for MEMS devices and new tools for efficient modeling of laminated iron in motors and transformers. A new workflow improves the handling of periodic structures in wave optics, and an RLGC parameter extraction tool enhances transmission line modeling for RF and microwave applications.

Learn more about these updates and other major news in COMSOL Multiphysics^® version 6.3 by attending this session.

COMSOL Multiphysics^® version 6.3 provides specialized new features for geometry creation, meshing, and CAD integration, improving the efficiency of model setup. Automatic detection and removal of small details and gaps in CAD models enable more robust mesh generation and efficient models. A new mesh element sizing algorithm ensures accurate resolution of geometric features. Physics-controlled meshing now supports imported STL files, and enhanced operations such as edge extrusion and revolutions improve flexibility in geometry creation. Additional new functionality includes virtual operations for face merging as well as easier swept meshing.

Important updates for the add-on products featuring CAD functionality include the ability to select specific components from assemblies, create variable radius and constant width fillets, and project edges to faces. For PCB design, users can now import component outlines and create plated vias, with added support for ECAD export in OASIS format.

Join this session to learn about the news for CAD, ECAD, and meshing in version 6.3.

COMSOL Multiphysics^® version 6.3 introduces new capabilities and performance improvements for structural mechanics and acoustics simulations.

For structural mechanics, highlights include electromechanical modeling for shells and membranes, moisture-induced shrinkage and swelling simulations, and efficient tools for spot welds and fasteners. New interior boundary contact conditions eliminate the need for contact pairs, and viscoelastic time-domain simulations incorporate frequency-dependent material properties. Additional updates include geometry modeling for random particulate composites, a lattice geometry part library, and up to 50% faster plasticity computations, with added support for pressure-dependent plasticity in foams.

For acoustics, GPU acceleration enables time-explicit pressure acoustics simulations that are up to 25x faster. Time-domain modeling now supports frequency-dependent material properties, and the sequential linearized Navier–Stokes (SLNS) model provides faster thermoviscous acoustics computations. Updates also include tools for anisotropic poroacoustics modeling.

Join this session to learn more about the latest updates for structural mechanics and acoustics simulations.

COMSOL Multiphysics^® version 6.3 introduces the new Electric Discharge Module for simulations of discharges in gases, liquids, and solids, as well as several new features and significant improvements to electromagnetics modeling.

These updates include capabilities for efficient modeling of laminated iron in motors and transformers and DQ excitation support, enabling common control strategies and key machine parameter calculations in electric motors. The release also introduces homogenized litz coil conductor modeling, accounting for strand count, DC resistance, and high-frequency loss. Additionally, electrostatic force calculations for MEMS devices are now more accurate, and new functionality enables the simulation of dielectric dispersion in biological tissues.

For transmission line modeling, version 6.3 offers RLGC parameter calculation, time-domain analysis, and a streamlined workflow for handling periodic structures in wave optics. In ray optics, users can now benefit from the automatic generation of spot diagrams and geometric modulation transfer function (MTF) plots. The release also enhances semiconductor device modeling with accurate leakage current calculations and introduces dedicated interfaces for nonisothermal plasma flow simulations.

Join this session to learn more about the latest updates for electromagnetics simulations.

COMSOL Multiphysics^® version 6.3 introduces a range of new features for fluid flow and heat transfer modeling. Reynolds-stress turbulence models enable accurate simulations of secondary flows in ducts and flows with strong swirl or mean rotation, and a new kinetic energy option enhances simulations of high Mach number flows. Shear-induced migration in multiphase flow modeling supports applications such as particle fractionation and microfiltration. The new mixing plane functionality simplifies the modeling of pumps, turbines, and other rotating machinery. Additionally, the release introduces tools for simulating non-Newtonian flow in porous media.

Heat transfer modeling is extended with a repeating unit cell method for composites and porous media, alongside a forward ray-shooting technique for improved accuracy in external radiation. Performance improvements include faster surface-to-surface radiation simulations for large models and enhanced workflows for fast drying simulations using nonequilibrium moisture transport.

Join this session to learn more about the latest updates for fluid flow and heat transfer simulations.

COMSOL Multiphysics^® version 6.3 introduces a range of new features and improvements for electrochemical and chemical reaction engineering simulations. For battery design, the release includes a new two-electrode lumped model and single-particle electrode options, extending the capabilities for simplified and lumped model analysis of battery performance and behavior. Additionally, a demonstration app for analyzing battery test cycles features new functionality for time-dependent surrogate modeling. Furthermore, modeling of concentrated electrolytes in electrochemical cells is now available in all electrochemistry products.

In chemical reaction engineering, new capabilities for simulation of precipitation and crystallization enable users to model particle nucleation and growth while accounting for particle size distributions. A new tool for generating space-dependent models simplifies the setup of turbulent reacting flow simulations by automatically coupling turbulence, chemical species transport, and heat transfer.

Join this session to learn more.