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The Influence of Different Frequencies in the Turbulence on Early Flame Development in a Spark Ignition Engine

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Author

  • Bengt Johansson

Summary, in English

Two-components cycle-resolved Laser Doppler

Velocimetry (LDV) measurements were performed with

high data rate to resolve the flow in a spark ignition

engine. The velocity measurements were then processed

with both a frequency and a time domain filtering

technique to obtain the level of turbulence at different

frequencies. Simultaneous cylinder pressure

measurements gave information of the duration of the

early flame development through a heat release

calculation. The initial combustion rate was correlated to

the turbulence at different frequencies and the results

showed a higher correlation for the high frequencies (4-6

kHz) when the engine was run at 700 rpm.

Department/s

Publishing year

1994

Language

English

Publication/Series

SAE Technical Paper Series

Document type

Conference paper

Publisher

Society of Automotive Engineers

Topic

  • Other Mechanical Engineering

Keywords

  • Spectrum
  • Spark Ignition
  • Turbulence
  • Combustion Engine
  • Cycle-Cycle variation

Conference name

SAE International Congress and Exposition, 1993

Conference date

1993-02-28 - 1993-03-03

Conference place

Detroit, Michigan, United States

Status

Published

ISBN/ISSN/Other

  • ISSN: 0148-7191