Accession Number:

ADA106130

Title:

Laser Velocimeter Measurements in Turbulent and Mixing Flows. Part III.

Descriptive Note:

Final technical rept. 1 Mar 77-31 Dec 80,

Corporate Author:

PURDUE UNIV LAFAYETTE IN SCHOOL OF MECHANICAL ENGINEERING

Personal Author(s):

• Stevenson,Warren H.
• Thompson,H. Doyle
• Luchik,T. S.

Report Date:

1981-06-01

Pagination or Media Count:

39.0

Abstract:

Experimental and analytical studies of subsonic flow over a backward facing 2-D step and in a cylindrical simulated dump combustor were conducted. A laser velocimeter was used to obtain mean velocities and turbulence quantities. A method for detecting and eliminating velocity bias errors in such measurements was developed. The 2EFIX computer code used for numerical modeling predicted the mean velocity field satisfactorily, but was less effective in computing turbulence quantities. Author

Descriptors:

• *TURBULENT FLOW
• *LASER VELOCIMETERS
• *JET MIXING FLOW
• OPTICAL DETECTION
• NUMERICAL ANALYSIS
• TURBULENCE
• LASER BEAMS
• ERROR ANALYSIS
• COMPUTER APPLICATIONS
• TWO DIMENSIONAL FLOW
• SUBSONIC FLOW
• BIAS
• MACHINE CODING
• RECIRCULATION
• FREQUENCY SHIFT

Subject Categories:

• Test Facilities, Equipment and Methods
• Optical Detection and Detectors
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE