Published July 1986 | Version v1
Report Restricted

Use of the Laser-Doppler-Anemometry for the measurement of velocity distributions at the intake of a longitudinal flow heat exchanger

Creators

Description

The Laser-Doppler-Anemometry (LDA) is an optical technic to measure flow velocities. In this report the principles of this method as well as the LDA-system components are described. Especially the signal-processing and the special conditions of use are discussed. The measurement of a two-dimensional velocity distribution at the intake of a longitudinal flow heat exchanger is shown in this investigation. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Die Laser-Doppler-Anemometrie (LDA) ist ein optisches Verfahren von Stroemungsgeschwindigkeiten. In diesem Bericht wird sowohl das Messprinzip als auch der Aufbau eines LDA beschrieben. Besonderer Wert wird hier auf die Signalauswertung und auf die systemspezifischen Anwendungsbedingungen gelegt. Am Beispiel des Umlenkgebietes eines laengsumstroemten Waermeaustauschers wird die praktische Messung eines 2d-Geschwindigkeitsfeldes beschrieben. (orig.)

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Additional titles

Original title (German)
Einsatz der Laser-Doppler-Anemometrie zur Messung der Geschwindigkeitsverteilung am Beispiel des Umlenkgebietes eines laengsumstroemten Waermeaustauschers

Publishing Information

Imprint Pagination
47 p.
Report number
Juel-Spez--362

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
18019364
Subject category
S42: ENGINEERING;
Descriptors DEI
ANEMOMETERS; BRAGG REFLECTION; DIGITAL SYSTEMS; DOPPLER EFFECT; FIBER OPTICS; FREQUENCY ANALYSIS; HEAT EXCHANGERS; INTAKE STRUCTURES; INTERFERENCE; MEASURING METHODS; SIGNALS; SPATIAL DISTRIBUTION; VELOCITY
Descriptors DEC
DISTRIBUTION; MEASURING INSTRUMENTS; MECHANICAL STRUCTURES; OPTICS; REFLECTION