Temperature measurement of a horizontal cylinder in natural convection using a lateral shearing interferometer with a large shear amount

Jinrong Zhu; Jinmei Dai; Xiaomin Cheng; Chunfu Cheng; Jinye Zhang; Yuanyuan Li

doi:10.1117/1.OE.54.3.034109

17 March 2015 Temperature measurement of a horizontal cylinder in natural convection using a lateral shearing interferometer with a large shear amount

Jinrong Zhu, Jinmei Dai, Xiaomin Cheng, Chunfu Cheng, Jinye Zhang, Yuanyuan Li

Author Affiliations +

Optical Engineering, Vol. 54, Issue 3, 034109 (March 2015). https://doi.org/10.1117/1.OE.54.3.034109

Abstract

The temperature field of a horizontal cylinder in natural convection is studied experimentally using a lateral shearing interferometer (LSI) with a large shear amount. Real-time interferograms are obtained with and without the cylinder. The surface temperature of the cylinder dropped from 693.15 K to the ambient temperature 289.03 K. The temperature distribution around the cylinder was reconstructed and fitted using exponential and six-degree-polynomial functions. For high surface temperature, the results indicate that the six-degree-polynomial function has a considerable advantage over the exponential one. Experimental data were compared with that measured by thermocouples within a 0.19% derivation. LSI with a large shear amount can provide accurate measurement of the temperature field around a cylinder with a high surface temperature.

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Jinrong Zhu, Jinmei Dai, Xiaomin Cheng, Chunfu Cheng, Jinye Zhang, and Yuanyuan Li "Temperature measurement of a horizontal cylinder in natural convection using a lateral shearing interferometer with a large shear amount," Optical Engineering 54(3), 034109 (17 March 2015). https://doi.org/10.1117/1.OE.54.3.034109

Published: 17 March 2015

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