Accession Number : ADP009030

Title :   The Combined Use of Liquid Crystals and PIV for Thermo-Convective Flow Analysis,

Corporate Author : GESAMTHOCHSCHULE ESSEN (GERMANY F R)

Personal Author(s) : Wozniak, G. ; Wozniak, K.

Report Date : 23 JUL 1992

Pagination or Media Count : 4

Abstract : In this paper we present a novel measuring technique for the simultaneous measurement of temperature- and velocity fields of buoyancy and thermocapillary driven liquid flows. The method is based on combination of particle-image-velocimetry (PIV) and the application of liquid crystals as tracer particles. The technique is described in some detail. Experimental results are discussed and compared with data obtained with data obtained by alternative measuring techniques and theoretical predictions, respectively. (Author)

Descriptors :   *CONVECTION(HEAT TRANSFER), *LIQUID CRYSTALS, *FLOW FIELDS, DIFFERENTIAL THERMAL ANALYSIS, BUOYANCY, SURFACE TENSION, MASS TRANSFER, BUBBLES, QUANTITATIVE ANALYSIS, OPTICAL IMAGES, VELOCIMETERS, FLOW VISUALIZATION, IMAGE PROCESSING, EXPERIMENTAL DESIGN, FOREIGN TECHNOLOGY, GERMANY.

Subject Categories : Thermodynamics
      Fluid Mechanics
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE