Liquid crystal measurements of heat transfer and surface shear stress
- 16 June 2000
- journal article
- Published by IOP Publishing in Measurement Science and Technology
- Vol. 11 (7), 969-986
- https://doi.org/10.1088/0957-0233/11/7/313
Abstract
Liquid crystals have become an accurate and convenient means of measuring surface temperature and heat transfer for the gas turbine and heat transfer research communities. The measurement of surface shear stress using liquid crystals is finding increasing favour with aerodynamicists and developments in these techniques ensure that liquid crystals will continue to provide key thermal and shear stress data in the future. The increasing use of three-dimensional finite element computational models has allowed industry to capitalize on the advantages of the full surface data generated. The paper reviews the use of these complex materials in research with a special emphasis on recent developments in the field. The aim is to provide the reader with an up to date background in this measurement technology and allow the researcher to decide whether liquid crystals would be suitable in specific applications.Keywords
This publication has 31 references indexed in Scilit:
- Detailed heat transfer characteristic comparison in straight and 90-deg turned trapezoidal ducts with pin-fin arraysInternational Journal of Heat and Mass Transfer, 1999
- Simultaneous, Full-Surface Visualizations of Transition and Separation Using Liquid Crystal CoatingsAIAA Journal, 1997
- New Methodology for the Measurement of Surface Shear Stress Vector DistributionsAIAA Journal, 1997
- A Color Image Processing System for Transient Liquid Crystal Heat Transfer ExperimentsJournal of Turbomachinery, 1996
- INFLUENCE OF HEAT CONDUCTION ON DETERMINATION OF HEAT TRANSFER COEFFICIENT BY LIQUID CRYSTAL THERMOGRAPHYExperimental Heat Transfer, 1995
- Detailed Measurements of Local Heat Transfer Coefficient and Adiabatic Wall Temperature Beneath an Array of Impinging JetsJournal of Turbomachinery, 1994
- A Hybrid Transient Step-Heating Heat Transfer Measurement Technique Using Heater Foils and Liquid-Crystal ThermographyJournal of Heat Transfer, 1993
- A Comparison of the Transient and Heated-Coating Methods for the Measurement of Local Heat Transfer Coefficients on a Pin FinJournal of Heat Transfer, 1989
- Use of Melting Point Surface Coatings for Local Convection Heat Transfer Measurements in Rectangular Channel Flows With 90-deg TurnsJournal of Heat Transfer, 1986
- Model Wall and Recovery Temperature Effects on Experimental Heat-Transfer Data AnalysisAIAA Journal, 1974