Heat transfer study of free convection through a horizontal open ended axisymmetric cavity using holographic interferometry

Chehouani, H.; Said, Abdessadek Ait Haj; Fagrich, Mahfoud El

doi:10.1016/j.expthermflusci.2014.10.007

Cited by 12 publications

(9 citation statements)

References 23 publications

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“…The same statistical study described in Ref. is performed to estimate the uncertainties in the measurement of the heat transfer coefficient. It consists of evaluating the standard deviation of the heat transfer coefficient from several interferograms acquired under the same experimental conditions.…”

Section: Resultsmentioning

confidence: 99%

“…The great similarity between the two kinds of fringe patterns demonstrates the validity of the procedure adopted here for the phase extraction. The uncertainty associated with this procedure has been estimated to be

2.8 %

…”

Section: Experimental Investigationmentioning

confidence: 99%

“…The axisymmetric propriety of the flow makes it possible to reconstruct the 3D temperature field with only one projection due to the Abel inversion transform. In order to achieve a satisfactory accuracy, the technique of wavelet transforms and the Fourier–Hankel method are implemented for the phase extraction and the Abel inversion, respectively …”

Section: Introductionmentioning

confidence: 99%

“…In order to achieve a satisfactory accuracy, the technique of wavelet transforms and the Fourier-Hankel method are implemented for the phase extraction and the Abel inversion, respectively. 12 The objectives of our investigation are to scrutinize the flow and heat transfer patterns, propose useful correlations between the Nusselt number, Rayleigh number, and aspect ratio, and verify the validity of the numerical and the experimental models via an investigation of both numerical and experimental results.…”

Section: Introductionmentioning

confidence: 99%

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Numerical and experimental study of free convection through a horizontal open‐ended axisymmetric cavity

Said

Chehouani

Er‐Raki

2017

Heat Trans. Asian Res.

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This paper summarizes a numerical and experimental investigation of free convective heat transfer in an open‐ended cavity between two horizontal parallel circular plates. The upper plate is maintained at an ambient temperature and the lower one is heated. Air is used as the heat transfer medium. The numerical model equations are solved using a control volume‐based finite differences method, and the experimental study was performed using holographic interferometry. Streamlines and isotherm patterns are presented and discussed for different aspect ratios (A) and Rayleigh numbers (Ra). Heat transfer at the surface of the lower plate is thoroughly inspected in the ranges 0.1≤A≤1 and 102≤Ra≤5×106. Useful correlations of Nusselt numbers in terms of Ra and A are given with their validity ranges. Also, an investigation of both numerical and experimental results is performed. It shows similar temperature field aspect with some differences in the radial boundary layer thickness and a small deviation in the heat transfer.

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Section: Resultsmentioning

confidence: 99%

2.8 %

…”

Section: Experimental Investigationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Numerical and experimental study of free convection through a horizontal open‐ended axisymmetric cavity

Said

Chehouani

Er‐Raki

2017

Heat Trans. Asian Res.

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“…In many optical methods, the temperature of a fluid is measured from the phase difference in the light rays due to the change in the refractive index. Methods, such as Mach-Zehnder interferometry (MZI), 14,15 lateral shearing interferometry (LSI), 16,17 and holographic interferometry (HI), [18][19][20] have been applied. Owing to the highly accurate, nonintrusive, and full-field measurement, optical methods are preferred for flow visualization and heat transfer analyses.…”

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confidence: 99%

Natural convection heat transfer from a horizontal cylinder using holographic interferometry

Zhu

Zhang

et al. 2018

Heat Trans. Asian Res.

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The natural convection heat transfer from a horizontal cylinder with a uniform wall temperature in an infinite space was experimentally investigated. Infinite fringe interferograms of the cylinder heated from 295.15 to 355.15 K were recorded using the holographic interferometry technique. The temperature field around the cylinder was reconstructed based on phase difference recovery using a MATLAB code. The distributions of the local and average Nusselt numbers over the cylinder were then obtained. A correlation of the average Nusselt number was proposed for a Rayleigh number range of 2.7–6.0 × 104. The experimental results are in good agreement with previous correlations, with a deviation of ±10%. The holographic interferometry technique was found to be satisfactory and reliable for heat transfer analyses.

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Numerical Study of Magneto-hydrodynamic Free Convection Heat Transfer and Fluid Flow

Chaabane

Jemni

Sidik

et al. 2022

Technological Advancement in Mechanical and Automotive Engineering

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Heat transfer study of free convection through a horizontal open ended axisymmetric cavity using holographic interferometry

Cited by 12 publications

References 23 publications

Numerical and experimental study of free convection through a horizontal open‐ended axisymmetric cavity

Numerical and experimental study of free convection through a horizontal open‐ended axisymmetric cavity

Natural convection heat transfer from a horizontal cylinder using holographic interferometry

Numerical Study of Magneto-hydrodynamic Free Convection Heat Transfer and Fluid Flow

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