WAVE - combustion and emissions

WAVE contains advanced combustion models for diesel and spark ignition (SI) engines and includes secondary models specifically for the study of direct injection, SI turbulent flame propagation, engine-out emissions and knock. In addition to in-cylinder models, WAVE also includes a suite of exhaust aftertreatment models. These enable detailed chemical kinetic simulation of advanced emission control technologies to be carried out. WAVE allows the combustion of multiple fuels according to a prescribed burn rate where the combustion can be calculated using a semi-automated heat release analysis process.

Key features 

  • Compression ignition capabilities:
    • Diesel Wiebe semi-predictive combustion sub-model (includes pilot injection)
    • Diesel jet predictive combustion sub-model (Hiroyasu)
    • Diesel3D, computational fluid dynamics (CFD) predictive injection/combustion visualisation
  • Spark Ignition capabilities:
    • SI Wiebe combustion sub-model
    • SI turbulent flame predictive combustion sub-model
    • SI predictive combustion (eliminates the need for geometry in SI turbulent combustion sub-model)
    • SI stratified combustion sub-model
    • Knock sub-model
  • Common capabilities:
    • Three-point simple Wiebe combustion sub-model
    • Multi-Wiebe combustion sub-model
    • Automated multi-Wiebe fitting tool enabling user to choose number of fitted curves
    • Nitrogen oxides (NOx), carbon monoxide (CO), and hydrocarbon (HC) emissions formation
    • Cylinder pressure heat-release analysis for individual cylinders
    • Prescribed heat-release profiles
    • Library of fuels and custom fuel generator – ethanol, hydrogen, natural gas, E85; arbitrary blends and oxygenated fuels
    • User-programmed combustion sub-model
    • Multi-pulse actuatable injectors
  • R-CAT emissions control technology: 
    • 1D and 3D three-way catalyst (TWC), diesel oxidation catalyst (DOC), lean-NOx trap (LNT) and selective catalytic reduction (SCR)
    • 1D diesel particulate filter (DPF) with regeneration
    • R-CAT Simulink S-function
    • User-programmed aftertreatment kinetics sub-model