COMBUSTION RANDOMNESS AND DIESEL ENGINE NOISE: THEORY AND INITIAL EXPERIMENTS

Theoretical reasoning and preliminary experimental results show that the cycle variations in the turbulent combustion process in a Diesel engine are responsible for a substantial amount of noise radiated from the engine. A two-time variable procedure is used to construct a theory of the three dimensional, unsteady Diesel engine combustion chamber pressure development. This theory is used to extract the spectral behavior of the chamber pressure when the heat release rate contains both periodic and random components. It is then theoretically shown that the randomness can be expected to dominate the periodic part of the pressure-time trace above some lower frequency bound of the order of 1000 Hz.

  • Corporate Authors:

    Elsevier Publishing Company, Incorporated

    52 Vanderbilt Avenue
    New York, NY  USA  10017
  • Authors:
    • Strahle, W C
  • Publication Date: 1977

Media Info

  • Features: References;
  • Pagination: p. 279-290
  • Serial:
    • Combustion and Flame
    • Volume: 28
    • Issue Number: 3
    • Publisher: Elsevier Publishing Company, Incorporated

Subject/Index Terms

Filing Info

  • Accession Number: 00163267
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Oct 13 1977 12:00AM