STAR-CD Extends Engine Modeling

By DE Editors

CD-adapco(London, UK) says that STAR-CD v3.24, the latest release of its CFD(computational fluid dynamics) code, is packed with new features aimeddirectly at the engine modeling community including Extended CoherentFlame Model (ECFM) combustion models.

ECFM (ECFM and ECFM-3Z) extends CFD combustion modeling beyond thecustomary single mixture regime restriction of traditional combustionmodels. The ECFM models are equally valid whether the charge is"pre-mixed,” “partially mixed,” “non-mixed,” or any combination ofthese.

Jointly developed by Renault and IFP(Institut Francais du Petrole), the ECFM models are intended to addressthe specific combustion challenges posed by Direct Injection (DI)engines, such as their high degree of charge stratification. The ECFMmodels are said to be valid in all mixture regimes, and equallyapplicable for GDI engines using a spark ignition model and for HCCIand DI diesel engines using an auto-ignition model.

The interface between STAR-CD and GT-SUITE (GT-POWER, GT-COOL, GT-FUEL) from Gamma Technologies Inc.(Westmont, IL) in version 3.24 has been upgraded. STAR and GT-SUITE canbe distributed across a network, communicating via the GT-LINK server.The link is fully compatible with HPC analyses and there are noconstraints on domain decomposition

Version 3.24 also has a new interface with Ricardo’s WAVE code. Bycoupling WAVE and STAR-CD, engineers can optimize the focus of theirsystem simulations, applying STAR-CD to the components where detailed3D analysis is required, and WAVE to the remainder.

For complete details, visit the CD-adapco wesbite.