Converge Post-processing accelerates through Convergent Science Inc. and CEI partnership

July 15, 2013 – Convergent Science Inc. has announced that they have partnered with Computational Engineering International, Inc. to offer CEI’s flagship product EnSight-Desktop fully integrated into CONVERGE™ Studio. CONVERGE™ Studio is the graphical user interface for the innovative CFD solver CONVERGE™.  The goal is to improve CONVERGE post-processing.

Rob Kaczmarek, Director of Sales and Marketing at Convergent Science stated “We are very pleased to partner with CEI to bundle EnSight-Desktop with CONVERGE™ Studio.  Having CEI’s post-processor integrated with CONVERGE™ Studio will offer our CFD users an industry leading option for visualizing their CONVERGE™ results.”

Darin McKinnis, VP of Sales & Marketing at CEI Software commented “EnSight has been used to post-process and visualize CONVERGE™ results for several years, but the past two years as our companies have worked more closely together we’ve made greater strides than ever in better serving CONVERGE™ users.  We expect that progress to accelerate due to this partnership.

CONVERGE™ Studio allows users to cleanup geometries, setup cases, prepare chemical mechanism reduction, create plots, and post process all in one easy to use environment. With CONVERGE™ Studio getting from CAD to CFD just got even faster.

Sample movie made by EnSight with data from a jet engine combustor simulated by CONVERGE™.=

Standard Features

  • Full problem setup with Screen Slide technology
  • Input condition and validation
  • Chemical Mechanism Reduction utility
  • Plotting utilities

About Convergent Science

CONVERGE™ is an innovative CFD software that automates the meshing at runtime with a perfectly orthogonal Cartesian mesh, eliminating the need for a user defined mesh.  This combined with its Adaptive Mesh Refinement technology allows for easy analysis of complex geometries and moving boundaries.  CONVERGE™ is also equipped with extremely fast and efficient detailed chemistry, an extensive set of physical sub-models, a genetic algorithm optimization module, and fully automated parallelization.

Additional Information

Samples of EnSight-produced movies from Converge Data

Requesting EnSight for Converge

Wind Energy and Wind Farm CFD simulation show that Converge is not only for Internal Combustion Engines (ICE)

Wind farm data from CSI, makers of Converge visualized using EnSight.

Wind Turbine Site Model, Clip through model, Streamlines. from EnSight by CEI Software on Vimeo.


We used texture maps to make the terrain look like rolling grasslands, clip planes to show the velocity in a fixed altitude plane, and if you look carefully you can see the mesh adapting to moving blades as well as to greater or lower variable gradients.  There’s a 2nd viewport showing the pathlines of the flow.

We liked that, but thought we’d go a little deeper and use a more advanced technique.  What if we changed the clip transparency to be nearly invisible for low speed flow and more opaque when things go interesting. This particular animation, the clip plane’s opacity is changed dynamically through the velocity variable so that regions of high velocity are opaque, and regions of low velocity are translucent. The alternative view shows streamlines seeded from the turbine blade.

Wind Turbine Site Model, Clip through model, Streamlines. from EnSight by CEI Software on Vimeo.


In this particular visualization, the clip plane in the main view is colored with velocity and the the engineer can inspect the changing grid resolution in response to the flowfield gradients. In the alternative view, inspection of turbulent kinetic engery isosurfaces can help yield information regarding the influence of the various large obstacles in the field (hills, towers, etc) which are generating additional turbulence.

Wind Turbine Site Model, Clip through model, Streamlines, Isosurfaces from EnSight by CEI Software on Vimeo.

EnSight is useful for looking at this kind of data. We could have gone further and done a keyframe animation fly-through as well, but that would have probably looked like showing off.  (keyframe animated Converge model available here).

Converge data is almost perfect for EnSight, its CFD, its transient, and Converge’s moving parts and adapting mesh and growing model sizes are no problem for EnSight.  EnSight 10.1 introduced native polyhedral element support.

Want to see more models solved with Converge and post-processed using EnSight, visit the Converge page in our video gallery.

P.S – if you make CFD data, for example you have a CFD solver that outputs data in a form EnSight can read and want to send an interesting dataset like CSI did, we’d like that.


Prometheus Engineers Improved Fire

“Communicating the results of CFD analysis is critical to a successful project and our business.  It can be difficult to explain to someone not familiar with CFD what they are looking at.  The ease with which we can change views, compare different cases side-by-side, and create animations in EnSight allows us to provide the necessary perspective to our customers for a more successful presentation.  Furthermore, the ability to use macros to format the data is invaluable for reviewing results quickly and efficiently.  ”  Emmanuella Sotiropoulou, Vice President, Engineering Prometheus Applied Technologies, LLC. Solver used was Converge from Convergent Science Inc.

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