Altair gets the nod to distribute GE’s engine system modelling tool

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Flow Simulator model of a GE aircraft engine

Altair and GE have signed a multi-year software agreement making the former the exclusive distributor for GE’s Flow Simulator software.

The comprehensive engine system modeling software provides the functionality of numerous tools for fluid systems to enable multi-disciplinary analyses, which Altair will leverage its expertise in commercial software deployment to expand the technology’s adoption.

Developed internally by GE, Flow Simulator is a robust multi-grid based solver dependent on the continuity-based Newton-Raphson method, which encompasses several numerical techniques that conquer the robustness issues of stiff fluid system designs.

Transient modeling of an automotive internal combustion engine with Flow Simulator


With already over 1,500 users as a single-fluid system modeling tool across the aerothermal and combustion engineering design communities at GE, the software will be made available through Altair to a wider audience for the first time.

“Flow Simulator’s mixed fidelity simulation capabilities for engine systems fill an important gap to help improve design processes and reduce development, manufacturing and operational costs for many organisations,” said Altair CTO Dr. Uwe Schramm.

“It is a welcome addition to Altair’s strong multiphysics system modeling portfolio.”

Gary Mercer, VP and GM of Engineering for GE Aviation, added: “This software helped guide GE to design world record efficient gas turbines and the more advanced aircraft engines in the industry.”

“We are very excited to work with Altair Engineering to commercialise our Flow Simulator software.”