Accession Number : ADP009012

Title :   An Experimental Technique for Performing 3-D LDA Measurements Inside Whirling Annular Seals,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Morrison, Gerald L. ; Johnson, Mark C. ; DeOtte, Robert E., Jr. ; Thames, H. D., III ; Wiedner, Brian G.

Report Date : 23 JUL 1992

Pagination or Media Count : 6

Abstract : This rather unique facility has developed the experimental capability for measuring the flow field inside journal bearings, labyrinth seals, and annular seals. The facility consists of a specially designed 3-D LDA system which is capable of measuring the instantaneous velocity vector within 0.2 mm of a wall while the laser beams are aligned almost perpendicular to the wall. This capability was required to measure the flow field inside journal bearings, labyrinth seals, and annular seals. A detailed description of this facility along with some representative results obtained for a whirling annular seal are presented. (Author)

Descriptors :   *LASER ANEMOMETERS, *ANNULAR FLOW, *SEALS(STOPPERS), DOPPLER EFFECT, JOURNAL BEARINGS, LABYRINTH SEALS, LABORATORY PROCEDURES, THREE DIMENSIONAL, SPINNING(MOTION).

Subject Categories : Recording and Playback Devices
      Fluid Mechanics
      Adhesives, Seals and Binders

Distribution Statement : APPROVED FOR PUBLIC RELEASE