Heat and mass transfer measurement using method of digital holographic tomography

Roman Doleček; Pavel Psota; Vít Lédl; Tomáš Vít

doi:10.1117/12.2257476

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11 November 2016 Heat and mass transfer measurement using method of digital holographic tomography

Roman Doleček, Pavel Psota, Vít Lédl, Tomáš Vít

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Proceedings Volume 10151, Optics and Measurement International Conference 2016; 1015119 (2016) https://doi.org/10.1117/12.2257476
Event: Optics and Measurement 2016 International Conference, 2016, Liberec, Czech Republic

Abstract

A digital holographic interferometry (DHI) for 3D measurement of temperature distributions in moving fluid is presented in this paper. The measurement uses digital holographic setup for measurement of a flow of fluid propagated through an orifice and tomographic approach for 3D reconstruction of the flow. The periodic character of the flow and synchronization between the digital camera and external trigger driving the phenomenon allows us to measure phenomena with much higher frequency when compared to frame rate of the digital camera. Furthermore one can capture a large number of the flow projections from different viewing directions which are later used for 3D tomographic reconstruction of the whole temperature field of the flow. The measurement results are verified and compared with hot wire method (CTA) in the paper.

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Roman Doleček, Pavel Psota, Vít Lédl, and Tomáš Vít "Heat and mass transfer measurement using method of digital holographic tomography ", Proc. SPIE 10151, Optics and Measurement International Conference 2016, 1015119 (11 November 2016); https://doi.org/10.1117/12.2257476

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