A comprehensive review on recent advances in superhydrophobic surfaces and their applications for drag reduction

Liravi, Mohammad; Pakzad, Hossein; Moosavi, Ali; Nouri-Borujerdi, A.

doi:10.1016/j.porgcoat.2019.105537

Cited by 142 publications

(81 citation statements)

References 160 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This expresses that with the help of surface tension the liquid does not penetrate into the cavities [40]. Further, since liquid penetration into the cavities depends upon various factors such as manufacturing methods and quality, type of materials, liquid surface tension and flow pressure, new methods have been proposed to increase the superhydrophobicity of the surfaces and liquid-air durability [52][53][54]. For example, Carlborg et al [55] showed that air pockets on a modified surface could support liquid pressures that are three times higher than the theoretical predictions.…”

Section: Methodsmentioning

confidence: 99%

Thermohydraulic analysis of a microchannel with varying superhydrophobic roughness

Akhtari

Karimi

2020

Applied Thermal Engineering

View full text Add to dashboard Cite

Nature inspired superhydrophobic surfaces are applied to microchannels to minimize the pumping power needed for driving the fluid flow. Special attention is given to the superhydrophobic surfaces with alternative microstructures and four different micro-structured configurations including square and triangular micro-posts and micro-holes are examined in aligned and staggered patterns. A numerical study is conducted to identify the impact of cavity fractions of 0.1 to 0.9 and Reynolds numbers of 10 and 100 on the performance indicators. These include drag reduction, heat transfer rate and mixed hydraulic and thermal behavior of the microchannel evaluated by the thermal performance index. The results reveal that the Poiseuille and Nusselt numbers decrease by the increase of cavity fraction. It is also observed that the triangular patterns feature the best thermal performance. The optimal combination of heat transfer and pressure drop, reflected by the goodness factor, can be achieved in staggered square holes and posts patterns at low and high Reynolds numbers, respectively. Considering the total thermal performance of the microchannel, changing the microstructures from aligned to staggered pattern can have a significant influence upon the square microposts and micro-holes but only a modest impact on the triangular posts. Nonetheless, the optimal surface configuration should be picked up in accordance with the specific application in hand and by prioritizing improvements in thermal or hydraulic performance of the microchannel.

show abstract

Section: Methodsmentioning

confidence: 99%

Thermohydraulic analysis of a microchannel with varying superhydrophobic roughness

Akhtari

Karimi

2020

Applied Thermal Engineering

View full text Add to dashboard Cite

show abstract

“…For instance, materials that exhibit Wenzel wetting may possess a high WCA but due to the lack of retained air, slip lengths are low and drag reduction will not occur. 198,202 As a result, the design of drag-reducing superhydrophobic materials requires a more in-depth characterization, such as measuring surface flow properties like the slip length, to fully quantify the effects and compare materials.…”

Section: Drag Reductionmentioning

confidence: 99%

The challenges, achievements and applications of submersible superhydrophobic materials

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In silane group fluoroalkyl silanes due to presence of CF2, CF3 group it shows the phenomenal property of energy reduction of surfaces. But due to the presence of fluorine researches are searching for an alternative to this compound [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A Review on Applications of Superhydrophobic Coatings

Mishra¹,

Saini²,

Kumar³

2021

IRJASH

View full text Add to dashboard Cite

In this era of science where we want things to get more durable and affectless from outer element like corrosion, wear, water, friction, biofouling etc, in this which reduction of wettability is an important phenomenon. we try to mimic water repellence property from our nature to reduce contact with water like a lotus leaf, rose petal, cicada wings etc, this effect is known as superhydrophobicity. In this paper, we have discussed a general introduction about superhydrophobicity and will focus on its application in different fields. In this review paper, there are a lot of examples of coatings that are made by different researchers. We have discussed extensive area of application of superhydrophobicity like corrosion reduction, marine industries, aeroplane industry, self-cleaning, anti-icing, wear resistivity etc.

show abstract

A comprehensive review on recent advances in superhydrophobic surfaces and their applications for drag reduction

Cited by 142 publications

References 160 publications

Thermohydraulic analysis of a microchannel with varying superhydrophobic roughness

Thermohydraulic analysis of a microchannel with varying superhydrophobic roughness

The challenges, achievements and applications of submersible superhydrophobic materials

A Review on Applications of Superhydrophobic Coatings

Contact Info

Product

Resources

About