Accession Number : AD0689140

Title :   AN EXPERIMENTAL STUDY TO DETERMINE THE UTILITY OF STANDARD COMMERCIAL HOT-WIRE AND COATED WEDGE-SHAPED HOT-FILM PROBES FOR MEASUREMENT OF TURBULENCE IN WATER-CONTAMINATED AIR FLOWS. PART II.

Descriptive Note : Technical rept.,

Corporate Author : JOHNS HOPKINS UNIV BALTIMORE MD CHESAPEAKE BAY INST

Personal Author(s) : Merceret,Francis J. , Jr

Report Date : FEB 1969

Pagination or Media Count : 58

Abstract : Experiments were performed with the DISA 55D05 constant temperature anemometer and 55A8 hot-film probe under simulated field conditions. Procedures supplemental to the manufacturer's recommendations were developed for simplifying the operation of the equipment. The response in this configuration to water droplet impact was investigated. In addition a study of the noise and expected atmospheric signal plus noise to noise ratio as a function of frequency, flow parameters, and system variables was conducted. It is concluded that the system can provide useful turbulence measurements, for example, those appropriate to the study of energy dissipation in storms, even in the presence of heavy rain. (Author)

Descriptors :   (*ANEMOMETERS, PERFORMANCE(ENGINEERING)), (*ATMOSPHERIC MOTION, PROBES), TURBULENCE, IMPACT TESTS, DROPS, STORMS, RESPONSE, GAS FLOW, LIQUID IMMERSION TESTS, RAIN, SIMULATION, NOISE, TEMPERATURE

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE