Numerical study of laminar flow and heat transfer in square channel with 30° inline angled baffle turbulators

Promvonge, Pongjet; Jedsadaratanachai, Withada; Kwankaomeng, Sutapat

doi:10.1016/j.applthermaleng.2010.02.014

Cited by 68 publications

(34 citation statements)

References 22 publications

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“…A critical review on heat transfer enhancement in a rectangular channel revealed that most investigations were carried out experimentally. However, only a few investigations are available those are based on CFD approaches [23][24][25][26][27][28][29][30][31][32][33][34]. Gawande et al [23] conducted a numerical study on the effect of the transverse circular vortex type generator in an air channel.…”

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confidence: 99%

“…It was observed that the performance of the transverse circular vortex type generator in the channel was better than that of the smooth wall channel. Promvonge et al [24] carried out a three-dimensional CFD analysis of heat transfer and fluid flow characteristics through a 30˝inline angled baffle as tabulators in an air channel. Garg et al [25] numerically investigated the effect of transverse circular vortex generators for roughened air channels.…”

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Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles

Kumar

Kim

2016

Energies

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This article presents heat transfer and fluid flow characteristics in a solar air heater (SAH) channel with multi V-type perforated baffles. The flow passage has an aspect ratio of 10. The relative baffle height, relative pitch, relative baffle hole position, flow attack angle, and baffle open area ratio are 0.6, 8.0, 0.42, 60˝, and 12%, respectively. The Reynolds numbers considered in the study was in the range of 3000-10,000. The re-normalization group (RNG) k-ε turbulence model has been used for numerical analysis, and the optimum relative baffle width has been investigated considering relative baffle widths of 1.0-7.0.The numerical results are in good agreement with the experimental data for the range considered in the study. Multi V-type perforated baffles are shown to have better thermal performance as compared to other baffle shapes in a rectangular passage. The overall thermal hydraulic performance shows the maximum value at the relative baffle width of 5.0.

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Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles

Kumar

Kim

2016

Energies

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“…They also concluded that the periodic module of the computational model can save computational resource and time for investigation. The periodic boundary was applied for the computational domain of the heating or cooling sections inserted with various types of the turbulators or vortex generators (Jedsadaratanachai and Boonloi (2014;Jedsadaratanachai et al, 2015;Boonloi and Jedsadaratanachai, 2015;Promvonge et al, 2010;Promthaisong et al, 2016). The computational domains were validated with the base case and experimental results.…”

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confidence: 99%

Flow and Heat Transfer Profiles in a Square Channel with 45? V-Downstream Orifices

Jedsadaratanachai¹,

Boonloi²

2016

Journal of Mathematics and Statistics

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Flow and heat transfer profiles in a square channel heat exchanger inserted with 45° V-orifices are presented. The influences of Reynolds number (Re = 3000-10,000) and blockage ratio (BR = 0.05, 0.10, 0.15, 0.20 and 0.25) on periodic concepts are investigated numerically. The computational domain is solved with the finite volume method and SIMPLE algorithm. As the numerical results, the periodic profiles on flow and heat transfer are found when inserted the 45° Vorifices in the square duct. The configurations on flow and heat transfer in the heating section can separated into two sections; periodic profile and fully developed periodic profile. The patterns on flow and heat transfer are similar, but the values are not equal, called "periodic profiles", while the identical on both profiles and values, called "fully developed periodic profiles". In addition, the periodic structures depends on the parameters of the vortex generator, position in the channel and Reynolds number.

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“…Promvonge et al [8] 30 ∘ inclined baffle Inline, two opposite walls, square channel BR = 0.1-0.3 PR = 1.0-2.0 Re = 100-2000 1.2-11.0 2-54 4…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Analysis and Empirical Correlations for Laminar Forced Convection over 30° V-Baffled Square Channel

Boonloi

Jedsadaratanachai

2014

Advances in Mechanical Engineering

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Numerical study of laminar flow and heat transfer in square channel with 30° inline angled baffle turbulators

Cited by 68 publications

References 22 publications

Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles

Thermal Hydraulic Performance in a Solar Air Heater Channel with Multi V-Type Perforated Baffles

Flow and Heat Transfer Profiles in a Square Channel with 45? V-Downstream Orifices

Thermal Performance Analysis and Empirical Correlations for Laminar Forced Convection over 30° V-Baffled Square Channel

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