Increase lattice Boltzmann method ability to simulate slip flow regimes with dispersed CNTs nanoadditives inside

Mozaffari, Masoud; Karimipour, Arash; D’Orazio, Annunziata

doi:10.1007/s10973-018-7917-0

Cited by 31 publications

(4 citation statements)

References 76 publications

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“…LBM has been used by many studies to investigate flows in different geometries and boundary conditions; in addition, its ability to simulate particle suspensions suggests its capability in modeling nanofluids (Aghakhani et al , 2018; McCullough et al , 2018; McCullough et al , 2016; Safaei et al , 2016; Leonardi et al , 2016; Jones et al , 2015; Wang et al , 2018). Owing to low computational costs and acceptable results, LBM has been used in many studies for simulating free or mixed convection heat transfer (Chen et al , 2015; Rahmati et al , 2016; Abbassi et al , 2018; Vijaybabu et al , 2017; Mozaffari et al , 2019). Karimipour et al , 2012, used LBM to investigate mixed convection of a microflow for a broad range of Kn.…”

Section: Introductionmentioning

confidence: 99%

Lattice Boltzmann method to simulate convection heat transfer in a microchannel under heat flux

Mozaffari

D’Orazio

Karimipour

et al. 2019

HFF

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Purpose The purpose of this paper is to improve the lattice Boltzmann method’s ability to simulate a microflow under constant heat flux. Design/methodology/approach Develop the thermal lattice Boltzmann method based on double population of hydrodynamic and thermal distribution functions. Findings The buoyancy forces, caused by gravity, can change the hydrodynamic properties of the flow. As a result, the gravity term was included in the Boltzmann equation as an external force, and the equations were rewritten under new conditions. Originality/value To the best of the authors’ knowledge, the current study is the first attempt to investigate mixed-convection heat transfer in an inclined microchannel in a slip flow regime.

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Section: Introductionmentioning

confidence: 99%

Lattice Boltzmann method to simulate convection heat transfer in a microchannel under heat flux

Mozaffari

D’Orazio

Karimipour

et al. 2019

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“…Crucial parametric constrains were considered to be the Rayleigh Number and the MF which was induced by the current carrying wires in the duct. Figures 5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25 and 26 depicts the behaviour of the flow fluid and the thermal distribution in the duct with three and two dimensional plots.…”

Section: Resultsmentioning

confidence: 99%

“…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.…”

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confidence: 99%

“…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. Wakif et al 7 checked the stability of thermal radiation and surface roughness effects via the thermo-magneto-hydrodynamic method.…”

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confidence: 99%

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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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Effect of squid fin bionic surface and magnetic nanofluids on CPU cooling performance under magnetic field

Wang

Tang

2020

Asia-Pacific J Chem Eng

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In order to improve the low cooling efficiency of electronic component, a squid fin bionic surface and composite magnetic nanofluids were developed and applied in CPU cooling. Effects of squid fin bionic surface and composite nanofluids Fe3O4‐CNTs (FCNT)/water nanofluids on CPU cooling performance under magnetic field were systematically studied. The impacts of nanofluids mass fraction, wave frequency of squid fin bionic surface, magnetic induction intensity, and Reynolds number on the flow and heat exchange characteristics of magnetic nanofluids were considered. The experimental results demonstrated that the cooling capacity of magnetic nanofluids increases with the increasing wave frequency, magnetic induction intensity, and nanofluids mass fraction. Lastly, the whole experimental system was evaluated by a comprehensive performance index, and it was found that the comprehensive performance is better with higher wave frequency and stronger magnetic field.

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Increase lattice Boltzmann method ability to simulate slip flow regimes with dispersed CNTs nanoadditives inside

Cited by 31 publications

References 76 publications

Lattice Boltzmann method to simulate convection heat transfer in a microchannel under heat flux

Lattice Boltzmann method to simulate convection heat transfer in a microchannel under heat flux

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

Effect of squid fin bionic surface and magnetic nanofluids on CPU cooling performance under magnetic field

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