Gas-solid erosion on bionic configuration surface

Han, Zhiwu; Zhang, Junqiu; Ge, Chao; Jiang, Jialian; Liu, Ren

doi:10.1007/s11595-011-0219-z

Cited by 12 publications

(5 citation statements)

References 13 publications

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“…The groove cross-section geometric dimensions, viz., H , D , W were selected as the control factors, each at three levels. Reference to the experimental design theory, , the orthogonal array L 9 (3 4 ) was selected to arrange the test program. In conventional full factorial experiment design, it would requires 3 3 = 27 runs to study three parameters each at three levels, whereas orthogonal experimental approach reduces it to only 9 runs offering a great advantage in terms of experimental time and cost.…”

Section: Erosion Testsmentioning

confidence: 99%

Erosion Resistance of Bionic Functional Surfaces Inspired from Desert Scorpions

Han

Zhang

et al. 2012

Langmuir

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In this paper, a bionic method is presented to improve the erosion resistance of machine components. Desert scorpion (Androctonus australis) is a typical animal living in sandy deserts, and may face erosive action of blowing sand at a high speed. Based on the idea of bionics and biologic experimental techniques, the mechanisms of the sand erosion resistance of desert scorpion were investigated. Results showed that the desert scorpions used special microtextures such as bumps and grooves to construct the functional surfaces to achieve the erosion resistance. In order to understand the erosion resistance mechanisms of such functional surfaces, the combination of computational and experimental research were carried out in this paper. The Computational Fluid Dynamics (CFD) method was applied to predict the erosion performance of the bionic functional surfaces. The result demonstrated that the microtextured surfaces exhibited better erosion resistance than the smooth surfaces. The further erosion tests indicated that the groove surfaces exhibited better erosion performance at 30° injection angle. In order to determine the effect of the groove dimensions on the erosion resistance, regression analysis of orthogonal multinomials was also performed under a certain erosion condition, and the regression equation between the erosion rate and groove distance, width, and height was established.

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Section: Erosion Testsmentioning

confidence: 99%

Erosion Resistance of Bionic Functional Surfaces Inspired from Desert Scorpions

Han

Zhang

et al. 2012

Langmuir

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“…These animals can survive in the solid/gas mixed medium environment, i.e., sand, exhibiting high erosion resistance due to the biological functionality and unique surface texture/morphology [ 91 , 136 , 137 , 138 ]. Hang and Zang et al [ 91 , 136 , 139 ] identified the anti-erosion functionality of the scorpion’s back and the outcomes of multi-coupling effects. Few research studies identified that surface morphology is one of the most critical factors in resisting erosion, i.e., the scorpion resists erosion without causing damage due to its surface morphology [ 136 , 140 , 141 , 142 ].…”

Section: Biomimetic Surfaces Inspired By Animalsmentioning

confidence: 99%

Tribological Behavior of Bioinspired Surfaces

Шарма

Grewal

2023

Biomimetics

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Energy losses due to various tribological phenomena pose a significant challenge to sustainable development. These energy losses also contribute toward increased emissions of greenhouse gases. Various attempts have been made to reduce energy consumption through the use of various surface engineering solutions. The bioinspired surfaces can provide a sustainable solution to address these tribological challenges by minimizing friction and wear. The current study majorly focuses on the recent advancements in the tribological behavior of bioinspired surfaces and bio-inspired materials. The miniaturization of technological devices has increased the need to understand micro- and nano-scale tribological behavior, which could significantly reduce energy wastage and material degradation. Integrating advanced research methods is crucial in developing new aspects of structures and characteristics of biological materials. Depending upon the interaction of the species with the surrounding, the present study is divided into segments depicting the tribological behavior of the biological surfaces inspired by animals and plants. The mimicking of bio-inspired surfaces resulted in significant noise, friction, and drag reduction, promoting the development of anti-wear and anti-adhesion surfaces. Along with the reduction in friction through the bioinspired surface, a few studies providing evidence for the enhancement in the frictional properties were also depicted.

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“…However, such practices are not economical. Another alternative method is to add a special structure that changes the flow pattern [6,7]. Researchers control a flow pattern by these structures so as to change the situation in which contact between solid particles and surfaces occur, thereby protecting the materials [8].…”

Section: Introductionmentioning

confidence: 99%

“…Yin et al [12] presented that, due to the grooves of tamarisk surface, tamarisk was protected from sand and wind erosion. A convex pattern and groove were designed and compared with that of a smooth surface to test the property of gas–solid erosion in these studies [6,7,13,14]. Qian et al proved that a convex pattern increased the anti-erosion property and the maximum erosion rate was reduced due to the more dispersed distribution of sand particles around the pressure side and suction side, which caused the number of solid particles impacting the surface to be reduced [15].…”

Section: Introductionmentioning

confidence: 99%

Design of a Bio-Inspired Anti-Erosion Structure for a Water Hydraulic Valve Core: An Experimental Study

Wang

Zhang

et al. 2019

Biomimetics

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Animals and plants have numerous active protections for adapting to the complex and severe living environments, providing endless inspiration for extending the service life of materials and machines. Conch, a marine animal living near the coast and chronically suffering from the erosion of sand in water, has adapted to the condition through its anti-erosion conch shell. Romanesco broccoli, a plant whose inflorescence is self-similar in character, has a natural fractal bud’s form. Coupling the convex domes on the conch shell and the fractal structure of Romanesco broccoli, a novel valve core structure of a water hydraulic valve was designed in this paper to improve the particle erosion resistance and valve core’s service life. Three models were built to compare the effect among the normal structure, bionic structure, and multi-source coupling bionic structures, and were coined using 3D printing technology. A 3D printed water hydraulic valve was manufactured to simulate the working condition of a valve core under sand erosion in water flow, and capture the experimental videos of the two-phase flow. Furthermore, based on the water hydraulic platform and one-camera-six-mirror 3D imaging subsystem, the experiment system was established and used to compare the performance of the three different valve cores. As a result, the results showed that the coupling bionic structure could effectively improve the anti-erosion property of the valve core and protect the sealing face on the valve core from wear. This paper presents a novel way of combining advantages from both animal (function bionic) and plant (shape bionic) in one component design.

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Gas-solid erosion on bionic configuration surface

Cited by 12 publications

References 13 publications

Erosion Resistance of Bionic Functional Surfaces Inspired from Desert Scorpions

Erosion Resistance of Bionic Functional Surfaces Inspired from Desert Scorpions

Tribological Behavior of Bioinspired Surfaces

Design of a Bio-Inspired Anti-Erosion Structure for a Water Hydraulic Valve Core: An Experimental Study

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