Simultaneous PIV and Gradient Heat Flux Measurement of a Circular Cylinder in Cross-Flow

Gusakov, A. A.; Kosolapov, Artem S.; Маркович, Д. М.; Mityakov, A. V.; Mityakov, V. Yu.; Mozhayskiy, Sergey A.; Nebuchinov, Alexander S.; Сапожников, С. З.

doi:10.4028/www.scientific.net/amm.629.444

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…To verify the obtained data, the heat flux at various points was measured 2…3 times. Our work repeats the studies [9,10,18] in its methods, however, use of thermal imager makes it possible to solve the problem connected with the investigation of heat transfer at any nonisothermal surface [19,20].…”

Section: Resultsmentioning

confidence: 66%

Investigation of flow and heat transfer at the circular fins

et al. 2018

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For simultaneous investigation of heat transfer and hydraulic parameters of finned circular tube is proposed to connect PIV (Particle Image Velocimetry) method and thermal imaging with gradient heat flux measurement. In the first series of experiments, the hollow fin was investigated. The hollow fin was heated with saturated water steam and its isothermal surface simulated the ideal (isothermal) fin. The solid fin made of titanium alloy was investigated in similar regimes for comparison. In the second series, the influence of distance between fins on the heat transfer coefficients (HTC) at the circular fin, mounted on a circular cylinder was studied. The unique Gradient Heat Flux Sensors (GHFSs) were installed at different places of the fin surface. Comprehensive method including heat flux measurement, PIV and thermal imaging allows to study flow and heat transfer at the surface of the fin in real time. Possibility of complex study of flow and heat transfer for non-isothermal fins is shown.

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Section: Resultsmentioning

confidence: 66%

Investigation of flow and heat transfer at the circular fins

et al. 2018

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“…To verify the obtained data, the heat flux at various points is measured 2 to 3 times. This work repeats the studies in [11,12] based on the methods, however the use of thermal imager makes it possible to solve a problem connected with the investigation of heat transfer at any non-isothermal surface.…”

Section: Research Is Carried Out For Reynolds Numbermentioning

confidence: 54%

Investigation of flow and heat transfer at the surface of a single circular cooling fin

Сапожников¹,

Mityakov²,

Mityakov³

et al. 2018

IJET

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All heat transfer processes are connected with flow structure. It is important to know both heat transfer and flow characteristics. For the first time it is proposed to connect Particle Image Velocimetry (PIV) method with gradient heat flux measurement and thermal imaging for complex study of hydrodynamics and heat transfer at the surface of a single circular cooling fin. The hollow fin is heated with saturated water steam; meanwhile its isothermal external surface simulates the ideal fin. Flow and heat transfer at the surface of the solid fin of the same size and shape, and made of titanium alloy is investigated in the same regimes. Gradient Heat Flux Sensors (GHFS) were installed at different places of the fin surface. Velocity field near the fin, temperature field at the surface of the fin and heat flux were obtained. Comprehensive method including heat flux measurement, PIV and thermal imaging allows to study the flow and heat transfer at the surface of the fin in real time regime. The possibility of complex study of flow and heat transfer for non-isothermal fins is shown.

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