WAVE - combustion and emissions

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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