Self-pumping transpiration cooling with a protective porous armor

Huang, Gan; Liao, Zhirong; Xu, Ruina; Zhu, Yinhai; Jiang, Pei-Xue

doi:10.1016/j.applthermaleng.2019.114485

Cited by 30 publications

(2 citation statements)

References 25 publications

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“…We used the heat transfer from the high temperature gas to the DHSV-bio-FS specimen to verify the thermal protection performance of DHSV-bio-FS [ 24 , 25 , 39 , 40 ]. The thermal testing of the DHSV-bio-FS was conducted in a wind tunnel (Fig.…”

Section: Methodsmentioning

confidence: 99%

Thermal Protection Performance of Biomimetic Flexible Skin for Deformable High-Speed Vehicles (DHSV-bio-FS) under Uniaxial Tensile Strain

Yuan,

Lü,

Bao

2024

Research

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Vehicle skin is the key component in maintaining the aerodynamic shape of the vehicle. A deformable high-speed vehicle needs to adjust its shape in real time to realize optimum aerodynamic efficiency and to withstand extreme heat flow induced by high-speed flight, which requires the skin to possess large strain and high-temperature resistance. Traditional vehicle skin cannot satisfy both of the requirements. Biomimetic flexible skin for deformable high-speed vehicles (DHSV-bio-FS) combines flexible material fabrication with transpiration cooling technology, which can simulate human skin sweat cooling, and has the characteristics of large strain and high-temperature resistance. The thermal protection performance of the prepared prototype of DHSV-bio-FS was evaluated by simulation and wind tunnel experiments at 40% tensile strain with liquid water as coolant. Simulation results suggest that the surface temperature of the DHSV-bio-FS at 40% tensile strain is consistent with the temperature of the coolant (350 K) in a 3,000 K high-temperature gas environment. In addition, the prepared prototype DHSV-bio-FS survived for 1,200 s in a high-temperature gas environment of 200 kW/m 2 in wind tunnel experiments. This paper verifies the reliability of DHSV-bio-FS in a high-temperature gas environment and can be deployed in applications of flexible skin for deformable high-speed vehicles (DHSV-FS).

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Section: Methodsmentioning

confidence: 99%

Thermal Protection Performance of Biomimetic Flexible Skin for Deformable High-Speed Vehicles (DHSV-bio-FS) under Uniaxial Tensile Strain

Yuan,

Lü,

Bao

2024

Research

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“…Several industrial and geophysical applications have been extensively making the use of the porous media inserts in geothermal systems, heat exchangers with solid matrices, cooling of electronic components, drying processes, advanced extraction of oil resources, storage of grains, heat pipes, filters, thermal insulation, nuclear waste storage, pneumatic silencers and advanced recovery of oil resources. [1][2][3][4][5][6][7] On the other hand, nanofluids are widely used in heat transferring equipment due to their superior thermal properties. Ebrahimnia et al 8 numerically considered the laminar flow of nanofluid in a smooth pipe.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of nanofluids in a sinusoidal channel with embedded porous region

Ali

Shuja

Yilbaş

2023

Proceedings of the Institution of Mechanical Engineers, Part A:

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Inclusion of porous structures in micro-channels enhances heat transfer rates in energy harvesting devices, which signifies as the working fluid becomes a nanofluid. The present study compares the thermal performance of CuO-water, TiO2-water and graphene-water nanofluids in a sinusoidal channel with a porous insert. The flow and heat transfer characteristics are simulated and the effects of volumetric fraction of nanofluids, Reynolds number ( Re), porous insert width, and its permeability on the flow and temperature fields are examined. The findings reveal that CuO-water nanofluid results in higher heat transfer rates than those of other nanofluids considered. Graphene-water nanofluid gives rise to lower performance than that of CuO-water nanofluid in terms of convection heat transfer despite the fact that graphene has higher thermal conductivity than CuO. In this case, a decrease in Nusselt number of as much as 6.34% is observed for CuO-water nanofluid among all the cases considered for the Reynolds number of 100. Increasing the permeability of the porous insert slightly enhances (∼0.24%) the average Nusselt number. The porous insert with a small width in the channel improves the heat transfer rates (2.25% increase in Nusselt number), i.e. the average Nusselt number reduces as the porous insert width increases.

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Numerical modeling and simulation of heat transfer and fluid flow in a two-dimensional sudden expansion model using porous insert behind that

Zhao

2020

J Therm Anal Calorim

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Self-pumping transpiration cooling with a protective porous armor

Cited by 30 publications

References 25 publications

Thermal Protection Performance of Biomimetic Flexible Skin for Deformable High-Speed Vehicles (DHSV-bio-FS) under Uniaxial Tensile Strain

Thermal Protection Performance of Biomimetic Flexible Skin for Deformable High-Speed Vehicles (DHSV-bio-FS) under Uniaxial Tensile Strain

Thermal performance of nanofluids in a sinusoidal channel with embedded porous region

Numerical modeling and simulation of heat transfer and fluid flow in a two-dimensional sudden expansion model using porous insert behind that

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