Evaluation of viewing-angle effect on determination of local heat transfer coefficients on a curved surface using transient and heated-coating liquid-crystal methods

Tat Leung Chan

doi:10.1007/s003480100334

Evaluation of viewing-angle effect on determination of local heat transfer coefficients on a curved surface using transient and heated-coating liquid-crystal methods

Tat Leung Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

5 Citations (Scopus)

Abstract

This paper presents the effect of viewing-angle variations on the accuracy of transient and heated-coating liquid-crystal methods for determining the local heat transfer coefficients on a curved surface. A developed liquid-crystal calibration technique using a true-color image processing system has been used to alleviate the effect of viewing angle on oblique/curved surfaces. The accuracy of heat transfer coefficients improved significantly with careful correction of the viewing-angle effect on the surface geometry. It is crucial to ensure the implementation of the suggested calibration technique to be used in wideband thermochromic liquid-crystal applications on the non-orthogonal surface.

Original language	English
Pages (from-to)	447-456
Number of pages	10
Journal	Experiments in Fluids
Volume	31
Issue number	4
DOIs	https://doi.org/10.1007/s003480100334
Publication status	Published - 1 Oct 2001

ASJC Scopus subject areas

Computational Mechanics
Mechanics of Materials
General Physics and Astronomy
Fluid Flow and Transfer Processes

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10.1007/s003480100334

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Evaluation of viewing-angle effect on determination of local heat transfer coefficients on a curved surface using transient and heated-coating liquid-crystal methods

Abstract

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