Experimental Investigation of Flow Characteristics of Corrugated Channel Flow Using PIV

Tokgöz, Nehir

doi:10.18186/jte.34504

Cited by 5 publications

(5 citation statements)

References 21 publications

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“…Also, it was observed the superiority of heat dissipation of the sinusoidal corrugated channel thermal hydraulic performance to that of the flat channel. Tokgoz et al [13] Experimentally investigated the flow configuration of the corrugated channel having a width to height ratio such as 0.3 and a phase offset angel 180˚. Corrugated channel schematic diagram for phase shift angle 180˚ shown in Figure 6.…”

Section: Experimental Studiesmentioning

confidence: 99%

“…The best thermal performance was achieved by the trapezoidal corrugated channel Tokgoz et al [13] 2016 Divergent-convergent The rate of convection heat transfer improves significantly due to the rapid velocity fluctuations caused by the intensity and turbulence of the fluid mixing through corrugated channels Ajeel et al [14] 2019 Smooth, semicircular and trapezoidal…”

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confidence: 99%

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Augmentation of Fluid Flow and Heat Transfer Characteristics in corrugated Channel: A Review Study

Jaffal

Al‐Obaidi

Ghani

2021

DJES

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The corrugation configuration played an important role in heat transfer enhancement in many engineering applications such as heat exchangers, microchannel heat sink, solar collectors, etc. The significance of the corrugation configuration is manifested in its ability to offer a larger heat transfer area more than a straight channel. Besides, the periodic interruption and redeveloping of the thermal boundary layer which is an important feature offered by corrugation is remarkably enhanced the heat transfer. The researchers were keen to take advantage of these features and develop them by manipulating geometrical parameters to obtain the optimal results. The current work aims to collect available research data, which focused on improving heat transfer in corrugated channels and identifying the most important factors affecting the performance of corrugated channels. Among the studied shapes of the various operating conditions of the corrugated channels, the researchers unanimously agreed that the trapezoidal shape of the corrugations gives the best thermal improvement with a reasonable pressure drop inside the channels.

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Section: Experimental Studiesmentioning

confidence: 99%

mentioning

confidence: 99%

Augmentation of Fluid Flow and Heat Transfer Characteristics in corrugated Channel: A Review Study

Jaffal

Al‐Obaidi

Ghani

2021

DJES

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“…The correlations of both heat transfer factor and friction factor were presented, and the deviations from the experimental measurements to be within (20) % for the Reynolds number range of (200) to (3000). Experimental investigation was achieved to study the flow structure in the corrugated channel [17]. The study focused on the hydrodynamics of flow in the corrugated channels using the Particle Image Velocimetry (PIV) technique for Reynolds numbers of (4000) and (6000).…”

Section: Introductionmentioning

confidence: 99%

“…The previous work of many researchers showed that the experimental or numerical investigations were conducted at either high or low Reynolds number range [5,[13][14][15][16][17]. Further, a narrow range of corrugation angles was experimentally or numerically utilized in these researches.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Prediction for Air Flow in a Wavy Corrugated Duct at Steady-State Constant Heat Flux Mode and Early Stages of Turbulent Flow Conditions

Tarrad¹,

Khudor²

2019

MMEP

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The present work represents an attempt to formulate the air heat transfer performance exhibited from a wavy corrugated duct in the form of simplified correlations at constant heat flux. The correlations are empirical formulae intended to be applied for a corrugation wavelength to amplitude ratio (λ/a) of (5.7-12.6) with (0°) phase shift angle at corrugation plate angles of (54.5°), (45°), (38°), and (32.5°). The main stream air flow Reynolds number domain through the corrugated duct was bounded by (1.85×10 3) to (3.9×10 3). Four simple correlations for the heat transfer coefficient enhancement factor, corrugated duct heat transfer coefficient, Stanton number and Nusselt number were developed by the implementation of the Buckingham-pi theorem. These correlations were in terms of the duct corrugation characteristics, flow operating conditions and exerted heat flux. The deviation of the predicted data for the heat transfer coefficient enhancement factor was within a scatter of (± 10) %. The corrugated duct Stanton number, Nusselt number and heat transfer coefficient were correlated with accuracy margin of (± 20) % of the measured experimental data.

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“…Especially for the design of compact heat exchangers heat transfer must be maximized. Therefore, this area is investigated by many researchers [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Flow and Heat Transfer in Communicating Converging and Diverging Channels

Erdinç¹

2018

Journal of Thermal Engineering

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Fluid flow and heat transfer in communicating converging and diverging channel has been numerically investigated. Channels are assumed to be at constant wall temperature and the flow is assumed to be steady state and incompressible. Since the flow and temperature fields to repeat periodically after a certain developing length, periodic boundary conditions are used for the calculations. Finite volume method is used to solve the governing differential equations numerically. Computations are performed for different values of the plate angles and Reynolds numbers. Moreover, velocity distributions along the flow field are illustrated. It was found that the converging-diverging channels destroy the boundary layer significantly and Nusselt number is found to be about 400% higher than those of parallel plate channels, whereas due to vortex formation, pressure drop increases also.

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Experimental Investigation of Flow Characteristics of Corrugated Channel Flow Using PIV

Cited by 5 publications

References 21 publications

Augmentation of Fluid Flow and Heat Transfer Characteristics in corrugated Channel: A Review Study

Augmentation of Fluid Flow and Heat Transfer Characteristics in corrugated Channel: A Review Study

Thermal Performance Prediction for Air Flow in a Wavy Corrugated Duct at Steady-State Constant Heat Flux Mode and Early Stages of Turbulent Flow Conditions

Numerical Investigation of Flow and Heat Transfer in Communicating Converging and Diverging Channels

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