![]() Four products extend the capabilities of COMSOL Multiphysics in the field of fuel cell and cell modeling, polymer hydrodynamics, control and automation systems, as well as liquid and gas modeling.Īccording to the company, the modeling of curtain coating made using the Polymer Hydrodynamics module. A number of graphics tools, such as interactive sections, material textures, and selective transparency, optimize the quality visualization of simulation results. The upgrade introduces faster and less memory-demanding multi-core and cluster solvers, optimizes the import of complex geometric assemblies from CAD, and adds UI templates for modeling applications. When coupled to a thermodynamic system, the equilibrium constant can automatically be defined using thermodynamics properties.On November 11, 2020, the company, COMSOL a provider of software solutions for multiphysical modeling, development and deployment, announced the applications release of version 5.6 of the COMSOL Multiphysics package. In reaction engineering, the equilibrium constant, which is used in an equilibrium reaction or a reversible reaction, can now be automatically defined in terms of the Gibbs free energy of the reaction. ![]() Automatic Definition of Equilibrium Constants ![]() The feature is called Equilibrium Reaction for domains and Surface Equilibrium Reaction for boundaries. Equilibrium ReactionsĪ new feature for modeling equilibrium reactions in domains and on boundaries is now available for concentrated mixtures. The new Fast Irreversible Surface Reaction feature prescribes the concentration of a rate-limiting species to zero, and balances the fluxes of all participating species according to the stoichiometry. In this case, the reaction rate is limited by the species transport to the reacting surface. You can now model infinitely fast irreversible heterogeneous reactions. Partition conditions are used on both sides of the porous membrane in the middle. You can see this functionality demonstrated in the Separation Through Dialysis model.Ĭontaminant transport streamlines in a hollow fiber dialysis device. For example, you can use it to model conditions at the interface between two liquid phases, a gas-liquid interface, or the interface between a liquid phase and a porous medium. The new Partition Condition feature can be used to prescribe the ratio between the concentration of a solute species in two adjacent phases. Equilibrium constants, for ideal or nonideal systems, can now be provided by the thermodynamic system.Extended integration with the Reaction Engineering interface.All binary interactions parameters currently in use can now be inspected and edited in a table.All property models can be inspected and edited in a table.Two settings, Liquid phase model and Gas phase model, are now used when the system includes two or more phases.New user interface for controlling thermodynamic models and property models.Species properties are placed in a parent node with the species nameĪdditional Thermodynamics User Interface Improvements.Phase-specific properties are placed under parent nodes for each phase.Mixture properties and equilibrium calculations are placed under a parent Mixture node.Available phases are reflected in the name of the thermodynamic system.Thermodynamic systems can also contain any combination of user-defined and database species.You can now add customized species or edit database species.Several updates to the Thermodynamics interface make it more user friendly, as shown in the following bullets and accompanying image. Read more about these chemical reaction engineering features below. Chemical Reaction Engineering Module Updatesįor users of the Chemical Reaction Engineering Module, COMSOL Multiphysics ® version 5.4 includes an updated interface for the Thermodynamics features, new functionality for reactions in chemical species transport, and automatic definition of equilibrium constants.
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