LOGEacs

Our high-performance solver technology APIs can be coupled with third party computational fluid dynamics solvers that provide user coding functionality. The LOGEacs package provides combustion models which offer faster computational time and higher precision than those used in traditional CFD combustion analysis. The higher precision is achieved by the use of detailed chemistry. Direct chemistry solutions as well as tabulated chemistry solutions are featured.

LOGEacs contains combustion model interfaces for:

• Well-stirred reactor (WSR) API with load balancing and cell clustering technology
• Combustion progress variable (CPV) API which is a tabulated chemistry based WSR.
• Interactive Flamelet API with Transient Interactive Flamelet (TIF) and Dominant Interactive Flamelet (DIF).
• API for Conditional Moment Closure (CMC) with tabulated chemistry, a unique method which can be used for computing cell-local resolved CMC of
  the whole engine cylinder.

Advanced soot emission modelling capabilities

• Transport mean values of the soot moments or sections cell by cell (Standard approach)
  • Chemical sources from flamelet library or online calculation if a species transport model is used.
• Source terms with presumed moment shape (FSM, semi-detailed approach)
  • A shape of soot moments in mixture fraction space  assumed for the source term evaluation.
  • Chemical sources using flamelet library.
  • Can be extended to account for species shapes if a species transport model is used.
• CMC for soot moments (Detailed approach)
  • Transport equations for soot moments conditioned on mixture fraction are solved on-line for each cell in the CFD domain.
  • Chemical sources using flamelet library.

CFD consultancy

Dedicated advanced combustion model development and implementation.

• Species-transport based models
• Interactive flamelet
• Conditional moment closure
• Dual fuel modelling

Emission modelling.

• Soot: detailed kinetic soot model coupled with advanced modelling of the soot particle size distribution function through the method of moments or the sectional method.
• NOx and Unburned hydrocarbons (library or online chemistry based) .

Tabulated chemistry.

• Combustion and laminar flame speed table generation for ECFM-3Z based models (TKI,  CLE-H) and level-set (G-equation) models.
• Soot, NOx, UHC, CO flamelet libraries.

Transient flamelet libraries.