Numerical analysis of laminar heat transfer in a channel with diamond-shaped baffles

Sripattanapipat, Somchai; Promvonge, Pongjet

doi:10.1016/j.icheatmasstransfer.2008.09.008

Cited by 143 publications

(75 citation statements)

References 15 publications

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“…The Nu x /Nu 0 value decreases gradually in the region downstream of the recirculation, near the channel outlet, where the effect of the recirculation mixing is diminishing [6]. These remarks are confirmed numerically by Nasiruddin and Kamran Siddiqui [6], and Sripattanapipat and Promvonge [21].…”

Section: Structure Of Flowmentioning

confidence: 55%

“…Other similar works can be found in the literature, i.e, Fodor [10], Rábai and Vad [11], Hegedus et al [12], Füle and Hernádi [13], Goda and Bánhidi [14], Bidar et al [15], Khrabry et al [16], and Fenyvesi and Horváth [17]. The form geometry of the baffle is also a necessary structural parameter for the enhancement of the heat transfer phenomenon inside a channel, for example, ꞌLꞌ-shaped [18], discrete ꞌVꞌ and ꞌVꞌ-orifice [19], double ꞌVꞌ [20], diamond [21], helical [22], waisted triangular [23], and ꞌZꞌ-shaped [24].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Analysis of Thermal and Aerodynamic Fields in a Channel with Cascaded Baffles

Menni

Aberqi

2017

Period. Polytech. Mech. Eng.

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Section: Structure Of Flowmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Thermal and Aerodynamic Fields in a Channel with Cascaded Baffles

Menni

Aberqi

2017

Period. Polytech. Mech. Eng.

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“…Theses researchers found that a complex flow structure was generated in the cavity due to the aspect ratios and orientations of the blocks. Numerical investigation on the effect of different baffle tip angles on heat transfer was conducted by Sripattanapipat and Promvonge [16] in a channel with two diamond-shaped baffles and reported that a baffle with a 5 • tip angle gave a 6 % increase in heat transfer. Further increasing the tip angle decreased the Nusselt number.…”

Section: Subscriptsmentioning

confidence: 99%

Experimental Investigation on Heat Transfer Enhancement from a Channel Mounted with Staggered Blocks

et al. 2015

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The present work experimentally investigates heat transfer enhancement from a channel mounted with staggered blocks. The effect of the geometrical parameters, such as the square and circular shapes of the blocks and the ratio of the centre to centre spacing between the blocks (L x /L y ratio) along the stream-wise direction and transverse direction of flow, has been investigated. Experiments were conducted using the newly developed experimental setup for Reynolds number ranging from 100 to 500 based on the hydraulic diameter and the average velocity of flow through the channel. The heat input values varied from 100 to 300 W with a step of 50 W, and water was used as working fluid. The results suggest that the variation of the Reynolds number significantly influenced the heat transfer enhancement compared with other geometrical parameters. The squareshaped block imposed greater impact on the heat transfer than the circular blocks. An increase in the heat transfer was observed while increasing the L x /L y ratios from 1.5 to 2.5 for the square blocks, whereas it was reduced for the circular blocks.

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“…Asif et al (2011) also numerically studied ventilated cavity but here three isothermally heated baffles were placed alternately in the left and right walls. Horizontal Channel with two diamond-shaped baffles placed on the lower and upper walls in a staggered array was the problem geometry considered by Sripattanapipat & Promvonge (2009). A numerical and experimental study on z-shaped baffles in the turbulent regime was conducted by Sriromreun et al (2012).…”

Section: Introductionmentioning

confidence: 99%

Mixed convection in a baffled grooved channel

Sharma

Mahapatra

Manna

et al. 2015

Sadhana

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In the present numerical work, flow structure and heat transfer characteristics are investigated in a baffled grooved channel, differentially heated from the sides. The baffle is placed vertically downward from the top wall of grooved channel geometry, with the motive of diverting outside forced flow towards the inside of the square cavity. In-house CFD code based on finite volume method has been used to solve the 2D equations of continuity, momentum and energy. The effect of change in baffle position and height is investigated in the range of Richardson numbers 0.1 to 10. For the present study, external flow from both left and right of the grooved channel are considered. A remarkable enhancement of heat transfer is observed in presence of baffle. The study has also pointed out that for optimal performance, the position and height of the baffle need to be adjusted depending on the direction of external flow.

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Numerical analysis of laminar heat transfer in a channel with diamond-shaped baffles

Cited by 143 publications

References 15 publications

Numerical Analysis of Thermal and Aerodynamic Fields in a Channel with Cascaded Baffles

Numerical Analysis of Thermal and Aerodynamic Fields in a Channel with Cascaded Baffles

Experimental Investigation on Heat Transfer Enhancement from a Channel Mounted with Staggered Blocks

Mixed convection in a baffled grooved channel

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