Lean direct injection gas turbine combustor post-processed automatically via in situ post-processing with ParaView Catalyst.

Convergent Science recently released CONVERGE 3.1, a new major version of their CONVERGE CFD software. The new version enhances CONVERGE’s modeling capabilities, offers a variety of new features, and enables more complex, advanced simulations.

Version 3.1 adds to CONVERGE’s physical modeling options. The software now supports implicit fluid-structure interaction (FSI) modeling, which increases the stability of the solver when simulating fluids and solids with similar densities or when simulating floating solid bodies. This option, along with the new wind/wave generation tools and the mooring model, allows users to simulate a broader range of offshore and marine applications. In addition, CONVERGE 3.1 features several new volume of fluid (VOF) modeling approaches for reducing numerical diffusion at fluid interfaces and separating phases or immiscible liquids under the influence of gravity.

Multi-stream simulations are another new feature of CONVERGE 3.1. With this capability, users can apply different physical models and solver settings to different regions of the domain, making complex multi-physics simulations possible with a simplified workflow. 

CONVERGE can now be coupled with ParaView Catalyst to perform in situ post-processing of simulation results directly on the cluster. This reduces the storage space and time requirements for writing data to a disk, and eliminates all user time associated with post-processing the results at the end of the simulation. 

CONVERGE 3.1 offers several additional enhancements, including moving inlaid meshes, the ability to have a wall move through an arbitrary number of cells in a time-step, and the capability to simulate solid particles. 

“The improvements in CONVERGE 3.1 provide users with more options and greater flexibility for their simulations, while also simplifying their workflow,” said Keith Richards, Co-Owner and Vice President of Convergent Science. “These enhancements benefit customers across all market segments, from engines to emobility to renewable energy.”

Learn more about version 3.1 on the CONVERGE website.

Offshore wind turbine simulated using CONVERGE’s implicit FSI approach and mooring model.

About Convergent Science

Headquartered in Madison, Wisconsin, Convergent Science is a global leader in computational fluid dynamics (CFD) software. Our mission is to enable our customers to perform revolutionary CFD simulations by creating accurate, versatile, user-friendly software and providing unparalleled support.

Our flagship product, CONVERGE, is an innovative CFD software that eliminates the grid generation bottleneck through autonomous meshing and features a suite of advanced physical models, fully coupled detailed chemistry, and the ability to easily accommodate moving geometries. CONVERGE is revolutionizing the CFD industry and shifting the paradigm toward predictive CFD.

For more information about Convergent Science please visit


Published December 27, 2021