Investigation of the drag reduction performance of bionic flexible coating
文献类型：期刊论文
| 作者 | Li, Luncao; Liu, Bing; Hao, Hanlin; Li, Longyang; Zeng, Zhixiang |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2020 |
| 卷号 | 32期号:8 |
| 关键词 | COMPLIANT COATINGS FLOW |
| DOI | 10.1063/5.0016074 |
| 英文摘要 | The drag is a crucial factor in reducing the speed of movement and increasing unnecessary energy loss. In this work, inspired by dolphins, five bionic flexible coatings with drag reduction performance were designed and manufactured. First and foremost, the mixed solution, composed of the polydimethylsiloxane and ethyl acetate, was sprayed on aluminum disks with a spray gun, and the bionic flexible coatings were obtained by heating the aluminum disks sprayed with the mixed solution. Afterward, the mechanical properties and surface characteristics of the flexible coatings were characterized. The experimental results for the flexible coatings of drag reduction performance were obtained by using the drag force device. Above all, the parametric study focusing on the flexible coating of the mechanical properties affects the station of flow, which is performed to analyze the impact on drag reduction. Selecting the aluminum disk without any coating as a reference, numerical simulation methods were introduced to explore the drag reduction mechanism of the bionic flexible coating. The results evidence that the drag reduction ratio is 21.6% at the rotation velocity 50 rpm. Under the action of frictional resistance, the coating of elastic deformation caused by the viscoelasticity of the coating like the dolphin skin results in a decrease in frictional resistance of the wall. |
| 学科主题 | Mechanics ; Physics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20613]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Zeng, ZX (corresponding author), Chinese Acad Sci, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 2.Li, LY |
| 推荐引用方式 GB/T 7714 | Li, Luncao,Liu, Bing,Hao, Hanlin,et al. Investigation of the drag reduction performance of bionic flexible coating[J]. PHYSICS OF FLUIDS,2020,32(8). |
| APA | Li, Luncao,Liu, Bing,Hao, Hanlin,Li, Longyang,&Zeng, Zhixiang.(2020).Investigation of the drag reduction performance of bionic flexible coating.PHYSICS OF FLUIDS,32(8). |
| MLA | Li, Luncao,et al."Investigation of the drag reduction performance of bionic flexible coating".PHYSICS OF FLUIDS 32.8(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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