Water slip flow in superhydrophobic microtubes within laminar flow region

Zhou, Yu; Liu, Xinghua; Guo-zhu, Kuang

doi:10.1016/j.cjche.2014.12.010

Cited by 13 publications

(6 citation statements)

References 19 publications

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“…The roughness of the surface of the microchannel in the hydrophilic surface pipeline had little effect, and the pressure-flow characteristics conformed to the N-S equation. Under the influence of pipe roughness at the micro-and nanoscale, Yu et al [36] carried out the experiments in a circular superhydrophobic micropipe in the laminar region. By measuring the pressure drop and volume flow rate of water, it was found that water showed slip characteristics in the flow process.…”

Section: Study On the Seepage Characteristics Of Water In Thementioning

confidence: 99%

Investigation of Non-Newtonian Characteristics of Water Flow in Micro-/Nanochannels and Tight Reservoirs

Ding

Song

et al. 2022

Geofluids

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The characteristic scale of pore flow in tight reservoirs is generally in the range of 0.1 μm to 1 μm, which shows the obvious micro- and nanoscale effect. The traditional oil and gas seepage theory cannot accurately describe the flow law of liquid in the micro- and nanopores. The determination of seepage characteristics is crucial to the development, layout, and prediction of tight oil. Therefore, a non-Newtonian fluid model is established to discuss the flow characteristics of confined liquid in the heterogeneous pores of microtubules and reveal the nonlinear seepage law of water in micro- and nanochannels and tight reservoirs. Based on the characteristics of non-Newtonian fluid of confined fluid in micro- and nanospace, the flow model of non-Newtonian fluid under the action of shear stress was deduced. The flow velocity variation of liquid in micro- and nanochannel and dense core was analyzed, and the flow rate of water was less than that predicted by macro theory. According to the flow experiment of water in micro- and nanochannels, the flow model of power-law non-Newtonian fluid was verified. At the same time, through the flow experiment of water in the dense rock core, the non-Newtonian model was used for nonlinear fitting, and the non-Newtonian power-law parameters and average pore radius were obtained, which verified the effectiveness of the non-Newtonian flow model.

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Section: Study On the Seepage Characteristics Of Water In Thementioning

confidence: 99%

Investigation of Non-Newtonian Characteristics of Water Flow in Micro-/Nanochannels and Tight Reservoirs

Ding

Song

et al. 2022

Geofluids

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“…The drag reduction effect of the hydrophilic sphere is suddenly changed, and the drag coefficient of the superhydrophobic sphere is smaller than that of the hydrophilic sphere. Yu et al [ 97 ] investigated drag reduction and slip flow of the superhydrophilic and superhydrophobic microtubules in the laminar flow. The Poiseuille number on the superhydrophobic microtubes surface was less than on that of the superhydrophilic one.…”

Section: Superhydrophobic Surface Drag Reductionmentioning

confidence: 99%

A Review of Recent Advances in Superhydrophobic Surfaces and Their Applications in Drag Reduction and Heat Transfer

Zhang

Yang

et al. 2021

Nanomaterials

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Inspired by the superhydrophobic properties of some plants and animals with special structures, such as self-cleaning, water repellent, and drag reduction, the research on the basic theory and practical applications of superhydrophobic surfaces is increasing. In this paper, the characteristics of superhydrophobic surfaces and the preparation methods of superhydrophobic surfaces are briefly reviewed. The mechanisms of drag reduction on superhydrophobic surfaces and the effects of parameters such as flow rate, fluid viscosity, wettability, and surface morphology on drag reduction are discussed, as well as the applications of superhydrophobic surfaces in boiling heat transfer and condensation heat transfer. Finally, the limitations of adapting superhydrophobic surfaces to industrial applications are discussed. The possibility of applying superhydrophobic surfaces to highly viscous fluids for heat transfer to reduce flow resistance and improve heat transfer efficiency is introduced as a topic for further research in the future.

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“…Therefore, slip velocity increases, and an increase is seen in the heat transfer rate and pressure drop. Nikkah et al [12] investigated the slip flow of nanofluids in a microchannel with an oscillating heat flux and concluded that the Nusselt number experiences an increase when the slip coefficient has higher values. The increase in the Nusselt number has higher values for high values of the Reynolds number.…”

Section: • Velocity Takes Lower Values With the Increase Of The Nanopmentioning

confidence: 99%

Slip Flow of Nanofluids between Parallel Plates Heated with a Constant Heat Flux

Öztürk

Kahveci

2016

SV-JME

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The steady fully developed laminar flow and heat transfer of an electrically conducting viscous fluid between two parallel plates heated with a constant heat flux is investigated analytically in the presence of a transverse magnetic field. The momentum and energy equations are solved under the first order boundary conditions of slip velocity and temperature jump. The effects of the Knudsen number, Brinkman number and Hartmann number on the velocity and temperature distribution and heat transfer characteristics are discussed.

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Water slip flow in superhydrophobic microtubes within laminar flow region

Cited by 13 publications

References 19 publications

Investigation of Non-Newtonian Characteristics of Water Flow in Micro-/Nanochannels and Tight Reservoirs

Investigation of Non-Newtonian Characteristics of Water Flow in Micro-/Nanochannels and Tight Reservoirs

A Review of Recent Advances in Superhydrophobic Surfaces and Their Applications in Drag Reduction and Heat Transfer

Slip Flow of Nanofluids between Parallel Plates Heated with a Constant Heat Flux

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