Numerical investigation on heat transfer behavior of thermally developing flow inside rectangular microchannels

Ma, Hao; Duan, Zhipeng; Ning, Xiaoru; Su, Liangbin

doi:10.1016/j.csite.2021.100856

Cited by 37 publications

(9 citation statements)

References 51 publications

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“…Since the geometry of the channel cross‐section is collectively determined by both width and height, a dimensionless parameter, aspect ratio (

italicAR = H_{C} / W_{C}

) has been introduced to investigate the effects of microchannel geometry on flow and heat transfer performance. According to recent research by Ma et al, 24 the flow velocity at the corners of rectangular microchannels was found relatively low, which led to high fluid temperatures, low‐temperature gradients, and lower heat transfer intensity. The area of the microchannel in the low flow velocity region could be relatively smaller by increasing the ratio of width to height of microchannels, which increased the overall heat transfer intensity.…”

Section: The Geometric Parameters Of Channelmentioning

confidence: 96%

“…Favre-Marinet et al 40 experimentally observed that when the channel length was equal to the thermal entrance length, the maximum heat transfer could be achieved. Ma et al 24 raised a generalized correlation of the dimensionless thermal entrance length L th * with respect to channel aspect ratio and Reynolds number, which was developed with a maximum error of ±9.5%. By using the developed correlations for the thermal entrance length and the Nusselt number for different Reynolds numbers, aspect ratios, and channel lengths, it was easy and quick to predict the thermal performance of rectangular microchannels.…”

Section: The Effect Of Channel Lengthmentioning

confidence: 99%

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Research progress of the liquid cold plate cooling technology for server electronic chips: A review

Zhou

Dong

Sun

et al. 2022

Intl J of Energy Research

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A significant quantity of research has been dedicated to the application of liquid cold plates to eliminate the high heat flux in server electronic chips. Traditional parallel straight microchannel liquid cold plates suffer from low heat flux density with uneven flow distribution, which poses a serious challenge to high-performance server chip heat dissipation. This paper reviews recent research progress in geometry optimization, interrupted structures, channel patterns, and two-phase flow of liquid cold plates. The optimal geometry parameters of rectangular cross-sectional microchannels including the aspect ratio, length, and hydraulic diameter are summarized. Inquest of higher thermal performance, various interrupted structures (ribs, pin fins, etc.), special channel patterns (wavy-shaped, zigzag-shaped, fractal, serpentine, and doublelayered microchannels, etc.), and two-phase flow on the liquid cold plate are applied to promote fluid-turbulivity and increase heat transfer area, meanwhile they lead to more pressure drop. Furthermore, it is an essential approach to commercialize liquid cold plates by applying the academic and prototype of the liquid cold plate to manufacturing and liquid cooling system solutions. In the end, this review provides a discussion about the limitations of current research on liquid cold plates and an outlook on future research directions.

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“…Since the geometry of the channel cross‐section is collectively determined by both width and height, a dimensionless parameter, aspect ratio (

italicAR = H_{C} / W_{C}

Section: The Geometric Parameters Of Channelmentioning

confidence: 96%

Section: The Effect Of Channel Lengthmentioning

confidence: 99%

Research progress of the liquid cold plate cooling technology for server electronic chips: A review

Zhou

Dong

Sun

et al. 2022

Intl J of Energy Research

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show abstract

“…In a micro-channel, axial heat conduction with forced convection with slip effect by Haddout et al 25 Gong et al 26 examined the impact of hydraulic diameter and slip length on the hydraulic entrance length of laminar fluid flow in superhydrophobic microchannels. Ma et al 27 have explored the Reynolds number significantly, which impacts the local Nusselt quantity in the thermally evolving region, particularly at a lower Reynolds number. Ramanuja et al 28 examined the role of buoyancy on MHD flow through a porous medium.…”

Section: Introductionmentioning

confidence: 99%

Exploration of radiative heat on the Jeffery fluid flow in a microchannel for the impact of suction/injection

Krishna¹,

Ramanuja²,

Mishra

et al. 2022

Heat Trans

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The purpose of the present paper is to investigate the flow and heat transfer of thermal radiation on the Jeffery fluid flow within a microchannel for the effects of the superhydrophobic surface (SHS) within suction/injection. The governing differential equations of motion and heat transfer are transformed into nonlinear coupled ordinary differential equations (ODEs) using appropriate similarity transformations. The ODEs are solved along with boundary conditions by adopting Runge–Kutta with shooting technique. Symbolic computational software such as MATLAB, the solver bvp4c syntax examines the behavior of the relevant physical parameters. However, some effective emerging parameters on the flow problem reveal that the microchannel walls within the suction/injection parameter increase the temperature, and the SHS is heated. In contrast, without slip, the opposite behavior is rendered. It is clearly shown that the velocity profile diminishes with increasing the Prandtl number. Furthermore, it is noticed that velocity decreases for increasing values of Hartmann number. Comparison with available results for particular cases is an excellent agreement.

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“…A study of pressure-driven flow in a vertical duct near two current-carrying wires using finite volume technique Kashif Ali 1 , Wasim Jamshed 2* , S. Suriya Uma Devi 3 , Rabha W. Ibrahim 4 , Sohail Ahmad 5 & El Sayed M. Tag El Din 6 For heating, ventilation or air conditioning purposes in massive multistory building constructions, ducts are a common choice for air supply, return, or exhaust. Rapid population expansion, particularly in industrially concentrated areas, has given rise to a tradition of erecting high-rise buildings in which contaminated air is removed by making use of vertical ducts.…”

mentioning

confidence: 99%

“…Phan et al 4 prepared a numerical investigation on concurrent thermodynamic and hydrodynamic instruments of subaquatic explosion. Another presentation of numerical studied on heat transfer (HT) performance of thermally mounting movement inside rectangular microchannels is given by Ma et al 5 . Mozaffari et al 6 increased the ability of lattice using the mechanism of hydrodynamic and thermal.…”

mentioning

confidence: 99%

A study of pressure-driven flow in a vertical duct near two current-carrying wires using finite volume technique

Ali

Jamshed

Devi

et al. 2022

Sci Rep

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For heating, ventilation or air conditioning purposes in massive multistory building constructions, ducts are a common choice for air supply, return, or exhaust. Rapid population expansion, particularly in industrially concentrated areas, has given rise to a tradition of erecting high-rise buildings in which contaminated air is removed by making use of vertical ducts. For satisfying the enormous energy requirements of such structures, high voltage wires are used which are typically positioned near the ventilation ducts. This leads to a consequent motivation of studying the interaction of magnetic field (MF) around such wires with the flow in a duct, caused by vacuum pump or exhaust fan etc. Therefore, the objective of this work is to better understand how the established (thermally and hydrodynamically) movement in a perpendicular square duct interacts with the MF formed by neighboring current-carrying wires. A constant pressure gradient drives the flow under the condition of uniform heat flux across the unit axial length, with a fixed temperature on the duct periphery. After incorporating the flow assumptions and dimensionless variables, the governing equations are numerically solved by incorporating a finite volume approach. As an exclusive finding of the study, we have noted that MF caused by the wires tends to balance the flow reversal due to high Raleigh number. The MF, in this sense, acts as a balancing agent for the buoyancy effects, in the laminar flow regime

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Numerical investigation on heat transfer behavior of thermally developing flow inside rectangular microchannels

Cited by 37 publications

References 51 publications

Research progress of the liquid cold plate cooling technology for server electronic chips: A review

Research progress of the liquid cold plate cooling technology for server electronic chips: A review

Exploration of radiative heat on the Jeffery fluid flow in a microchannel for the impact of suction/injection

A study of pressure-driven flow in a vertical duct near two current-carrying wires using finite volume technique

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