TOWARD A COMPREHENSIVE MODEL FOR COMBUSTION IN A DIRECT INJECTION STRATIFIED CHARGE ENGINE

In an attempt to gain understanding of and insight into the complex coupled processes that occur in a stratified charge engine, computational models that simulate the single-cylinder dynamics of an engine cycle are being developed. Among the important physical effects that need to be represented are fluid dynamics at low Mach number, two-phase flow (spray injection of fuel droplets), turbulence, the ignition process, chemistry (turbulent flame propagation, pollutant formation), wall heat transfer and the associated phenomenon of wall quenching, and moving boundary surfaces (valves and piston). Although emphasis is presently placed on the DISC engine, most of these effects are also of importance in other spark-ignition or diesel engines. The associated models are, therefore, quite generally applicable.

  • Supplemental Notes:
    • International symposium on combustion modeling in reciprocating engines, Warren, MI, USA, 6 Nov 1978.
  • Corporate Authors:

    Los Alamos National Laboratory

    P.O. Box 1663
    Los Alamos, NM  USA  87545

    General Motors Corporation

    Warren, MI  USA  48090

    Department of Energy

    1000 Independence Avenue, SW
    Washington, DC  USA  20585
  • Authors:
    • Butler, T D
    • Cloutman, L D
    • Dukowicz, J K
    • Ramshaw, J D
    • Krieger, R B
  • Publication Date: 1978

Media Info

  • Pagination: 53 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00197886
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: CONF-7811102-1
  • Contract Numbers: W-7405-ENG-36
  • Files: TRIS
  • Created Date: Sep 15 1979 12:00AM