How CONVERGE™ Works

The steps below outline the procedure for setting up and running a CONVERGE™ CFD simulation.

Step 1 - Import the CAD surface	Step 2 - If necessary, clean the surface	Step 3 - Flag boundaries
Import your STL surface (output from CAD) into the CONVERGE™ pre-processor. If the surface is clean, skip Step 2 and you’re almost finished!	Sometimes the CAD surface has minor problems that need to be fixed. The pre-processor has the tools to find and fix these problems.	Flag surfaces so that boundary conditions can be applied. Moving boundaries (e.g., valves) are just as easy to set up as stationary boundaries!

Step 4 - Modify simulation inputs	Step 5 - Submit CONVERGE™ run	Step 6 - Post-process the results
With CONVERGE™ you have great control over inputs for numerics, mesh-refinement, sub-models, properties, and more. All of the inputs are thoroughly explained in our user manual.	Submit the simulation either in serial or parallel. To submit a parallel run, you only need to provide a list of machines to run on - the domain decomposition is handled automatically!	View the results using one of our post-processing options. Text data files for typical output quantities are also generated. These files can be easily plotted in standard plotting packages.

Notice something missing?

The process above shows all of the necessary steps for setting up and running a CONVERGE™ simulation. As you probably noticed, “creating a grid” is not one of these steps. That’s because with CONVERGE™ there is no user grid generation involved. The computational mesh is created internally in the CFD solver at runtime. The user still has ultimate control over mesh resolution, however, through features such as grid size scaling, fixed grid embedding, and adaptive mesh refinement. Furthermore, unlike traditional CFD codes, CONVERGE™ includes true geometry representation and so there are no geometry simplifications occuring in the code even if coarse grids are used.

The result is a CFD software package that reduces the total setup time for complex geometry simulations down to a couple of hours or less. And with the accuracy of a structured, Cartesian mesh, the ease of setting up moving boundaries, and state-of-the-art sub-models, CONVERGE™ is the clear choice for engineers, researchers and designers seeking high-fidelity solutions without the grid generation headache.