Accession Number : ADP005553

Title :   Particle Imaging Velocimetry in a Low Turbulent Windtunnel and other Flow Facilities,

Corporate Author : DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V GOETTINGEN (GERMANY F R)

Personal Author(s) : Kompenhans,J. ; Reichmuth,J.

Report Date : NOV 1986

Pagination or Media Count : 13

Abstract : Laser particle imaging velocimetry' (PIV) is sometimes called '(double) pulsed laser velocimetry'. PIV is a new technique to measure flow velocity and flow direction at one instant in time within a large area of the flow field. For that purpose PIV uses the light scattered by small particles in the flow, which are illuminated by two short laser pulses. This paper reports on the experience we gained with this method. In a first part our special PIV system is described. Young's fringes method to evaluate the velocity data is discussed. Examples of our first experimental results are given.

Descriptors :   *LASER VELOCIMETERS, *FLOW VISUALIZATION, FLOW FIELDS, VELOCITY, DIRECTIONAL, DATA ACQUISITION, PULSED LASERS, SEEDING, LIGHT SCATTERING, WIND TUNNEL TESTS, WEST GERMANY

Subject Categories : Fluid Mechanics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE