Discussion Forum

Hello COMSOL Community,

COMSOL Multiphysics(R) 5.1 was released on Wednesday, April 15. Version 5.1 is the first and only integrated simulation environment that lets you build multiphysics models and create and share easy-to-use simulation apps.

COMSOL Multiphysics 5.1 can be downloaded at:
www.comsol.com/product-download

Read the release highlights at:
www.comsol.com/release/5.1

*News in COMSOL Multiphysics and COMSOL Server*

- Tighter integration between the Model Builder and Application Builder. Numerous productivity enhancements such as improved file handling, sending emails with attachments, string and keyword searches, custom toolbars for tables, and more. COMSOL Server can now distribute the workload of running applications on multiple computers. 20 fully-documented and ready-to-use simulation apps based on COMSOL models have been added to the Application Libraries.

- Geometry and Mesh: Face detection for imported meshes, surface simplification in mesh to geometry conversion, and domain and boundary selections for NASTRAN® Property ID Numbers tools.

- Modeling Tools, Studies, and Visualization: A new matrix-free domain-decomposition solver. Visualization of a solution outside of the mesh (useful for far fields in electromagnetic waves and acoustic waves). Visualization of a periodic solution in a unit cell as a custom-sized array. Plots of geometric points or cut-points and their trajectory through time.

*News in add-on products*

- Electrical products: Multi-turn coil computation for coils with varying cross-sections. Surface roughness on lossy conductive boundaries for electromagnetic wave simulations. Hexagonal periodic structure handling. Special tools for handling ring resonators with the beam envelope formulation. New Optical Materials database. New Part Library for Ray Optics Module. Perforations feature for thin film damping (useful for MEMS). Demo application for computing and visualizing the color of an LED based on semiconductor physics.

- Mechanical products: A new multiphysics interface for hygroscopic swelling has been added to the Structural Mechanics Module. Membranes can now have nonlinear materials. Trusses can be modeled to include nonlinear springs and plasticity. A Part Library has also been added for structural applications, which includes beams and bolts. A new Algebraic Turbulence model has been added to the Heat Transfer Module. A new multiphysics interface for heat transfer in porous media enables local thermal non-equilibrium simulations (useful for microwave heating, exothermic reactions, nuclear engineering, electronics system design, and full cells). New predefined impedance boundary conditions for acoustics. Ray acoustics for graded media and fluid models with attenuation.

- Fluid products: Euler-Euler two-phase flow with turbulence. Fluid flow simulations can now combine porous media flow with turbulent flow, and porous domains are allowed to be unbounded with the aid of infinite elements. New pressure loss options for T-junctions, Y-junctions, and n-way junctions available for pipe flow simulations. New Part Library available in the Mixer Module.

- Chemical products: Macroscale to miscroscale concentration coupling at pellet-fluid interface. Automatic computation of gas mixture viscosity for fluids and dusty gas model features. A new state-of-the-art multiscale tutorial model of a 3D packed bed reactor with two levels of homogenization.

- Multipurpose products: New multiphysics interfaces for particle field interactions and fluid-particle interactions, inelastic collisions, and release sampling from velocity distributions for particle tracing simulation.

Enjoy COMSOL Multiphysics 5.1!
Valerio

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Valerio Marra, Ph.D.
Technical Marketing Manager
COMSOL, Inc.
+1-781-273-3322
valerio@comsol.com