Fluid flow and heat transfer in microchannel heat sinks: Modelling review and recent progress

Gao, Jie; Hu, Zhuohuan; Yang, Qing-Sheng; Liang, Xin-Gang; Wu, Hongwei

doi:10.1016/j.tsep.2022.101203

Cited by 46 publications

(14 citation statements)

References 130 publications

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“…This transformation causes Eqs. (10)(11)(12) to decrease to the subsequent first-order formula ( 17) According to this arguments, we have χ 0 = 0, χ j = χ j−1 + h j , j = 0, 1, 2, 3..., J, χ J = 1 where, h j is the step-magnitude. Applying central difference construction at the midpoint χ j−0.5…”

Section: Adaptationmentioning

confidence: 96%

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Partial differential equations of entropy analysis on ternary hybridity nanofluid flow model via rotating disk with hall current and electromagnetic radiative influences

Oweidi

Shahzad

Jamshed

et al. 2022

Sci Rep

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The flow of a fluid across a revolving disc has several technical and industrial uses. Examples of rotating disc flows include centrifugal pumps, viscometers, rotors, fans, turbines, and spinning discs. An important technology with implications for numerous treatments utilized in numerous sectors is the use of hybrid nanofluids (HNFs) to accelerate current advancements. Through investigation of ternary nanoparticle impacts on heat transfer (HT) and liquid movement, the thermal properties of tri-HNFs were to be ascertained in this study. Hall current, thermal radiation, and heat dissipation have all been studied in relation to the use of flow-describing equations. The ternary HNFs under research are composed of the nanomolecules aluminum oxide (Al2O3), copper oxide (CuO), silver (Ag), and water (H2O). For a number of significant physical characteristics, the physical situation is represented utilizing the boundary layer investigation, which produces partial differential equations (PDEs). The rheology of the movement is extended and computed in a revolving setting under the assumption that the movement is caused by a rotatingfloppy. Before the solution was found using the finite difference method, complicated generated PDEs were transformed into corresponding ODEs (Keller Box method). A rise in the implicated influencing factors has numerous notable physical impacts that have been seen and recorded. The Keller Box method (KBM) approach is also delivered for simulating the determination of nonlinear system problems faced in developing liquid and supplementary algebraic dynamics domains. The rate of entropy formation rises as the magnetic field parameter and radiation parameter increase. Entropy production rate decreases as the Brinkman number and Hall current parameter become more enriched. The thermal efficiency of ternary HNFs compared to conventional HNFs losses to a low of 4.8% and peaks to 5.2%.

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Section: Adaptationmentioning

confidence: 96%

“…Additional TT presentations can be found in solar researches 9 , magnetic fields 8 , and altering macroscopic 10 . Gao et al 11 , Jiaqiang et al 12 , and Mousavi et al 13 have recently reviewed the application of TT in the field of energy.…”

Section: Introductionmentioning

confidence: 99%

Partial differential equations of entropy analysis on ternary hybridity nanofluid flow model via rotating disk with hall current and electromagnetic radiative influences

Oweidi

Shahzad

Jamshed

et al. 2022

Sci Rep

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show abstract

“…5. The data was divided into three trends namely: (1) where the bubble count frequency increased with increasing vapour quality (2) where the bubble count frequency decreased with increasing vapour quality and (3) where the bubble count frequency reached zero. The first trend was described as the isolated bubble regime, the second as the coalescing bubble regime (as the reduction in in bubble count frequency was deemed to be due to the coalescence of bubbles) and the third was the annular flow regime (where bubble nucleation has become suppressed by a liquid film) he methodology outlined by Revellin and Thome [24] and used in subsequent publications (see [9], [25]) is successful in eliminating the subjectivity that arises due to visual observations.…”

Section: Flow Patterns In the Microscalementioning

confidence: 99%

“…There has been a meteoric development in microprocessor design in the last forty years that has resulted in an exponential rise in processing power per chip footprint area [1]. As such, significantly higher heat fluxes are being generated due to proportionally higher power leakages over the reduced die footprint.…”

Section: Introductionmentioning

confidence: 99%

Review on Flow Boiling Patterns in Microchannels

Widgington

Ivanov

Karayiannis

2022

2022 28th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC)

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A discussion on the current challenges that face the heat transfer community in predicting two-phase flow patterns in microchannels is presented in this paper. These challenges include lack of universal terminology, a requirement for an agreed flow pattern categorisation by the international research community and subjectivity due to visual categorisations of flow patterns. The generic flow pattern categorisation of bubble, slug, churn and annular flows are suggested to alleviate these problems. Finally, a data bank consisting of over 1500 data points for a range of fluids was used to assess the success of current diabatic flow pattern transition models and to understand the important parameters that cause flow patterns to transition.

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“…So far, numerical examination methods such as computational fluid dynamic (CFD) tools showed good flexibility and a big advantage to be used for studying the heat transfer characteristics of heat exchangers by different numerical modelling methods [ 21 , 22 ]. Yet, numerical modelling has been used to simulate the performance of NFs for heat transfer of NFs flow through uniform mini-channels [ 23 ] and micro-channels [ 24 ], and it showed respectable agreement with experimental measurements for several conditions such as non-Newtonian rheology behavior for the NFs [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Comparisons of Numerical and Experimental Investigations of the Thermal Performance of Al2O3 and TiO2 Nanofluids in a Compact Plate Heat Exchanger

Ajeeb

Murshed

2022

Nanomaterials

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This study reports the thermal performance of Al2O3 and TiO2 nanofluids (NFs) flowing inside a compact plate heat exchanger (CPHE) by comparing the experimental and numerical investigations. The NF samples were prepared for five concentrations each of Al2O3 and TiO2 nanoparticles dispersed in distilled water (DW) as a base fluid (BF). The stability of NF samples was ensured, and their viscosity and thermal conductivity were measured. Firstly, the experimental measurements were performed for the heat transfer and fluid flow of the NFs in the plate heat exchanger (PHE) system and then the numerical investigation method was developed for the same PHE dimensions and operation conditions of the experimental investigation. A finite volume method (FVM) and single-phase fluid were used for numerical modelling. The obtained experimental and numerical results show that the thermal performance of the CPHE enhances by adding nanoparticles to the BFs. Furthermore, numerical predictions present lower values of convection heat transfer coefficients than the experimental measurements with a maximum deviation of 12% at the highest flow rate. Nevertheless, the numerical model is suitable with acceptable accuracy for the prediction of NFs through PHE and it becomes better for relatively small particles’ concentrations and low flow rates.

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Fluid flow and heat transfer in microchannel heat sinks: Modelling review and recent progress

Cited by 46 publications

References 130 publications

Partial differential equations of entropy analysis on ternary hybridity nanofluid flow model via rotating disk with hall current and electromagnetic radiative influences

Partial differential equations of entropy analysis on ternary hybridity nanofluid flow model via rotating disk with hall current and electromagnetic radiative influences

Review on Flow Boiling Patterns in Microchannels

Comparisons of Numerical and Experimental Investigations of the Thermal Performance of Al2O3 and TiO2 Nanofluids in a Compact Plate Heat Exchanger

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