Experimental study on laminar flow forced-convection in a channel with upper V-corrugated plate heated by radiation

Ali, Ahmed Hamza H.; Hanaoka, Yutaka

doi:10.1016/s0017-9310(01)00309-x

Cited by 29 publications

(6 citation statements)

References 5 publications

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“…(1) to (5), along with the boundary conditions. The standard k-ε turbulence model, and the Renormalized Group (RNG) k-ε turbulence model were selected.…”

Section: Numerical Computationmentioning

confidence: 99%

“…The study of the heat transfer coefficient shows a strong sensibility to convective effects at the top of the corrugation whereas in the bottom of the undulation, the flow was disorganized and the convective effects are negligible. Ali and Hanaoka [5] studied experimentally the effects of the operating parameters on forcedconvection heat transfer for laminar flow of air in a channel having a V-corrugated upper plate heated by radiation. The results show that the change in the inclination angle from 0°to 60°leads to an increase in the local Nusselt number values by a ratio ranging from 33% to 67.3%.…”

Section: Introductionmentioning

confidence: 99%

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The effects of geometrical parameters of a corrugated channel with in out-of-phase arrangement

Mohammed

Abed

Wahid

2013

International Communications in Heat and Mass Transfer

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“…(1) to (5), along with the boundary conditions. The standard k-ε turbulence model, and the Renormalized Group (RNG) k-ε turbulence model were selected.…”

Section: Numerical Computationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effects of geometrical parameters of a corrugated channel with in out-of-phase arrangement

Mohammed

Abed

Wahid

2013

International Communications in Heat and Mass Transfer

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“…It was depicted that the Nusselt number and the friction factor both increase substantially by increasing the channel height. Hamza et al [52] conducted experiments of V-shaped corrugated duct in laminar flow regime. It was reported that heat transfer and friction coefficient greatly depend upon the angle of tilt in V-corrugated channel.…”

Section: Introductionmentioning

confidence: 99%

Archive of Mechanical Engineering

Siddique,

Raheem,

Aqeel

et al. 2021

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Heat transfer augmentation has become the utmost industrial desire. Turbulence promoters seems to be a better option for better heat transfer but at the expense of enormous pressure drop. In the current study, experimental optimization of heat transfer and pressure drop in various configurations of ribbed and corrugated surfaces on the bottom wall of the Solar Air Heater channel, having aspect ratio of 26:5 was performed. The results were evaluated in terms of enhancement in heat transfer (Nu/Nu s ), friction factor ratio ( f / f s ) and thermal performance factor (η). Three different cases and nine configurations with a pitch to rib/corrugation height ratio of 4.0 were studied. Case A consists of a smooth, continuous square rib, inline and staggered broken ribs. Case B comprises 30 • , 45 • , 60 • and 90 • trapezoidal corrugated geometries while case C is the comparison of smooth, wavy corrugated and the best configurations of cases A and B. The results show that rectangular duct with staggered broken ribs and trapezoidal corrugation at 45 • are the best configurations for case A and B, respectively. The 45 • corrugated configuration is the best one amongst all, with values of 1.53, 1.5 and 1.33% for Nu/Nu s , f / f s and η respectively. Nomenclature Abbreviations CNCComputer Numerical Control config. Configuration correl.

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“…For a Reynolds number ranging between 600 and 2000, the results obtained by Blomerius and Mitra [14] concerning the effect of angle between corrugations and the main flow direction reveal that the best performance may be obtained with the configuration of 45° angle. Ali and Hanaoka [15] studied the forced convective heat transfer of air laminar flow through a V-corrugated channel heated by radiation. They found that the increased inclination angle from 0° to 60° yielded an increase in Nu from 33% to 67.3%.…”

Section: Introductionmentioning

confidence: 99%

Effect of some parameters on the thermo-hydraulic characteristics of a channel heat exchanger with corrugated walls

Ameur

Sahel

2019

Journal of Mechanical and Energy Engineering

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The present work is a numerical modeling of the flow of a viscous fluid provided with convective heat transfer in a rectangular channel. We focus on the influence of the shape of corrugations which are present on the channel walls. Three shapes of corrugations are studied and which are: the rectangular, triangular and semi-circular shape. Also, effects of the height and number of corrugations on the fluid dynamics and thermal characteristics of the exchanger are highlighted. The working fluid is non-Newtonian (having a shear thinning behavior modeled by the Otswald law). The obtained results reveal that the presence of corrugations yields a major change in the heat exchange execution. In terms of superiority of heat transfer ratio, the cases under investigation can be classified as follows: rectangular > triangular > semi-circular. However and in terms of low pressure drop, this ranking is reversed. Furthermore, the triangular and semicircular shapes were found to have almost similar effects.

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Experimental study on laminar flow forced-convection in a channel with upper V-corrugated plate heated by radiation

Cited by 29 publications

References 5 publications

The effects of geometrical parameters of a corrugated channel with in out-of-phase arrangement

The effects of geometrical parameters of a corrugated channel with in out-of-phase arrangement

Archive of Mechanical Engineering

Effect of some parameters on the thermo-hydraulic characteristics of a channel heat exchanger with corrugated walls

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