The University of Southampton
University of Southampton Institutional Repository

A laser-anemometer for use in ship research

A laser-anemometer for use in ship research
A laser-anemometer for use in ship research
In experimental ship model research the absence of a technique for taking accurate velocity measurements between propeller and hull on a driven ship has hindered design improvement. In this region a laser Doppler anemometer can provide measurements where conventional means such as pitot probes would fail to function. The present paper introduces a prototype anemometer, designed for ship science work, which will simultaneously measure two orthogonal components of velocity. The instrument combines two frequency shifted reference beam anemometers and utilizes a frequency shifting technique which is simple and inexpensive. Extension of the instrumentation to measure a third orthogonal component of velocity is also discussed. Results of preparatory tests with a model propeller contain time resolved pictures of the axial and radial components of velocity in front of and through the propeller plane. The final design of an instrument under construction for towing tank use is also shown.
University of Southampton
Halliwell, N.A.
f5ed3106-dbc5-4005-8b34-1186aed549e5
Halliwell, N.A.
f5ed3106-dbc5-4005-8b34-1186aed549e5

Halliwell, N.A. (1975) A laser-anemometer for use in ship research (Ship Science Reports) Southampton, GB. University of Southampton 21pp.

Record type: Monograph (Project Report)

Abstract

In experimental ship model research the absence of a technique for taking accurate velocity measurements between propeller and hull on a driven ship has hindered design improvement. In this region a laser Doppler anemometer can provide measurements where conventional means such as pitot probes would fail to function. The present paper introduces a prototype anemometer, designed for ship science work, which will simultaneously measure two orthogonal components of velocity. The instrument combines two frequency shifted reference beam anemometers and utilizes a frequency shifting technique which is simple and inexpensive. Extension of the instrumentation to measure a third orthogonal component of velocity is also discussed. Results of preparatory tests with a model propeller contain time resolved pictures of the axial and radial components of velocity in front of and through the propeller plane. The final design of an instrument under construction for towing tank use is also shown.

Text
001.pdf - Version of Record
Download (819kB)

More information

Published date: 1975

Identifiers

Local EPrints ID: 43207
URI: http://eprints.soton.ac.uk/id/eprint/43207
PURE UUID: 736087ee-66b0-407c-9600-e915daaf893e

Catalogue record

Date deposited: 17 Jan 2007
Last modified: 15 Mar 2024 08:53

Export record

Contributors

Author: N.A. Halliwell

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×