Hot-wire anemometry

a method for the measurement of high frequency turbulent temperature fluctuations.

Savas Yavuzkurt, S. Atashie, A. Tayfun

Research output: Contribution to journalArticle

Abstract

A technique for the measurement of high frequency turbulent temperature fluctuations was developed and tested. It employed constant temperature anemometers to measure the instantaneous velocity and temperature simultaneously. Two parallel high wires operating at different wire temperatures at constant temperature mode are calibrated for velocity and temperature. A one equation (for each wire) describing the voltage output from the anemometer as a function of flow velocity and temperature was obtained. Later the technique was qualified by exposing the parallel wire probe to a flow of known temperature and velocity; and instantaneous output voltages are digitized and stored on a magnetic disk. Using a digital computer two equations are solved for two unknowns; mean and rms part of the velocity and temperature, were obtained. Results compare well with the known values. (A)

Original languageEnglish (US)
Pages (from-to)31-34
Number of pages4
JournalIN: FLUID MEASUREMENTS AND INSTRUMENTATION FORUM - 1986, PRESENTED AT AIAA/ASME 4TH FLUID MECHANICS, PLASMA DYNAMICS AND LASE
Volume34 )
StatePublished - Jan 1 1986

Fingerprint

Wire
Temperature
Anemometers
Electric potential
Digital computers
Flow velocity

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

@article{2d50c3aec6d94b51a35969b3b0fe4870,
title = "Hot-wire anemometry: a method for the measurement of high frequency turbulent temperature fluctuations.",
abstract = "A technique for the measurement of high frequency turbulent temperature fluctuations was developed and tested. It employed constant temperature anemometers to measure the instantaneous velocity and temperature simultaneously. Two parallel high wires operating at different wire temperatures at constant temperature mode are calibrated for velocity and temperature. A one equation (for each wire) describing the voltage output from the anemometer as a function of flow velocity and temperature was obtained. Later the technique was qualified by exposing the parallel wire probe to a flow of known temperature and velocity; and instantaneous output voltages are digitized and stored on a magnetic disk. Using a digital computer two equations are solved for two unknowns; mean and rms part of the velocity and temperature, were obtained. Results compare well with the known values. (A)",
author = "Savas Yavuzkurt and S. Atashie and A. Tayfun",
year = "1986",
month = "1",
day = "1",
language = "English (US)",
volume = "34 )",
pages = "31--34",
journal = "IN: FLUID MEASUREMENTS AND INSTRUMENTATION FORUM - 1986, PRESENTED AT AIAA/ASME 4TH FLUID MECHANICS, PLASMA DYNAMICS AND LASE",

}

TY - JOUR

T1 - Hot-wire anemometry

T2 - a method for the measurement of high frequency turbulent temperature fluctuations.

AU - Yavuzkurt, Savas

AU - Atashie, S.

AU - Tayfun, A.

PY - 1986/1/1

Y1 - 1986/1/1

N2 - A technique for the measurement of high frequency turbulent temperature fluctuations was developed and tested. It employed constant temperature anemometers to measure the instantaneous velocity and temperature simultaneously. Two parallel high wires operating at different wire temperatures at constant temperature mode are calibrated for velocity and temperature. A one equation (for each wire) describing the voltage output from the anemometer as a function of flow velocity and temperature was obtained. Later the technique was qualified by exposing the parallel wire probe to a flow of known temperature and velocity; and instantaneous output voltages are digitized and stored on a magnetic disk. Using a digital computer two equations are solved for two unknowns; mean and rms part of the velocity and temperature, were obtained. Results compare well with the known values. (A)

AB - A technique for the measurement of high frequency turbulent temperature fluctuations was developed and tested. It employed constant temperature anemometers to measure the instantaneous velocity and temperature simultaneously. Two parallel high wires operating at different wire temperatures at constant temperature mode are calibrated for velocity and temperature. A one equation (for each wire) describing the voltage output from the anemometer as a function of flow velocity and temperature was obtained. Later the technique was qualified by exposing the parallel wire probe to a flow of known temperature and velocity; and instantaneous output voltages are digitized and stored on a magnetic disk. Using a digital computer two equations are solved for two unknowns; mean and rms part of the velocity and temperature, were obtained. Results compare well with the known values. (A)

UR - http://www.scopus.com/inward/record.url?scp=0022501958&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022501958&partnerID=8YFLogxK

M3 - Article

VL - 34 )

SP - 31

EP - 34

JO - IN: FLUID MEASUREMENTS AND INSTRUMENTATION FORUM - 1986, PRESENTED AT AIAA/ASME 4TH FLUID MECHANICS, PLASMA DYNAMICS AND LASE

JF - IN: FLUID MEASUREMENTS AND INSTRUMENTATION FORUM - 1986, PRESENTED AT AIAA/ASME 4TH FLUID MECHANICS, PLASMA DYNAMICS AND LASE

ER -