APPLICATION OF LASER DOPPLER ANEMOMETRY TO A MOTORED DIESEL ENGINE

Some problems associated with applying laser doppler anemometry to the measurement of air motion in the cylinder are discussed from experiments using both forward and back scattering techniques in a motored diesel engine. The effects of doppler broadening caused by the velocity gradient and the diameters of the scattering particles are examined. The decaying process and the structure of the in-cylinder flow field are discussed in terms of measurements of the main flow velocity, the turbulence intensity, and the macro time scale and normalized power spectrum of the turbulence. Forward and back scattering measurement results are compared.

• Supplemental Notes:
  • Published in HS-030 302 (SAE-SP-468), "New Diesel Engines, Combustion, and Emissions Research in Japan," Warrendale, Pennsylvania, 1980, pp 53-63. Presented at the SAE International Off-Highway Meeting and Exposition, Milwaukee, 8-11 September 1980. Research sponsored by Hino Motors Limited and Japanese Education Ministry.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Matsuoka, S
  • Nagakura, K
  • Kawai, T
  • Kamimoto, T
  • Aoyagi, Y
• Publication Date: 1980

Media Info

• Features: References;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Anemometry; Backscattering; Diesel engines; Doppler effect; Lasers
• Old TRIS Terms: Forward scattering
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00380109
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAE 800965, HS-030 306
• Files: HSL, USDOT
• Created Date: Dec 30 1983 12:00AM