Updates in TotalSim’s open source CFD package


Several developments are to be implemented in TotalSim’s open source CFD software over the next 12 months.

Short term priorities include a new method – which is currently being tested internally – that has been developed to help reduce the run time for DES simulations. Current indications are that full-car cases (~60 million cells) will solve 1.5s of solution time in just over 24hrs on 48 cores.

A pre-processing tool, currently available as a beta tool, will remove the need to split up surfaces/geometry prior to meshing, and a new methodology and template for aero acoustic modeling, with new additional features, will be released.

TotalSim has also implemented some new techniques to try and minimize the risk of any issues with solver stability, which have been effective in improving reliability for meshes not generated using the snappyHexMesh utility.

Mid-term goals include: a functionality that can solve sonic restrictors and other similar compressible problems; the implementating automation of the meshing and setup of sliding mesh cases; a ‘ground up’ re-write of TotalSim’s automated postpro to enable it to be applicable to any CFD application; and the continued development of TotalSim’s cornering flow capability to help further optimize the setup and the integration with other tools, such as the ride height changer. 

May 15, 2015


About Author


John joined UKi Media & Events in 2012 and has worked across a range of B2B titles within the company's automotive, marine and entertainment divisions. Currently editor of Automotive Testing Technology International, Crash Test Technology International and Electric & Hybrid Marine Technology International, John co-ordinates the day-the-day operations of each magazine, from commissioning and writing to editing and signing-off, as well managing web content. Aside from the magazines, John also serves as co-chairman of the annual Electric & Hybrid Marine Awards and can be found sniffing out stories throughout the halls of several of UKI's industry-leading expo events.

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