Accession Number : ADP005544

Title :   Processing Techniques for Correlation of LDA and Thermocouple Signals,

Corporate Author : INSTITUTO SUPERIOR TECNICO LISBON (PORTUGAL) DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Nina,M. N. ; Pita,G. P.

Report Date : NOV 1986

Pagination or Media Count : 8

Abstract : A technique was developed to enable the evaluation of the correlation between velocity and temperature, with LDA as the source of velocity signals and fine wire thermocouple as that of flow temperature. The discontinuous nature of LDA signal require a special technique for the correlation, in particular when few seeding particles are present in the flow. The thermocouple signal was analog compensated in frequency and the effect of the value of time constant on the velocity temperature correlation was studied.

Descriptors :   *JET FLOW, CORRELATION TECHNIQUES, VELOCITY, TEMPERATURE, DATA PROCESSING, TEMPERATURE MEASURING INSTRUMENTS, THERMOCOUPLES, LASER VELOCIMETERS, DOPPLER SYSTEMS, TURBULENT FLOW, HOT GASES, FORWARD SCATTERING, LASER ANEMOMETERS, PORTUGAL

Subject Categories : Fluid Mechanics
      Test Facilities, Equipment and Methods
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE