Drag reducing surface fabrication with deformed sharkskin morphology
Autor: | Yuehao Luo, Dayi Zhang, Xiaoming Li, Yaohui Liu |
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Rok vydání: | 2016 |
Předmět: |
Fabrication
Materials science business.industry Sharkskin 02 engineering and technology Surfaces and Interfaces Mechanics 010502 geochemistry & geophysics 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Surfaces Coatings and Films Optics Water tunnel Drag Materials Chemistry 0210 nano-technology business 0105 earth and related environmental sciences |
Zdroj: | Surface Engineering. 32:157-163 |
ISSN: | 1743-2944 0267-0844 |
Popis: | The superiority of sharkskin is the consequence of nature selection and self-evolution. The nano/microhierarchical structure covering over sharkskin can match its living surroundings perfectly, whereas the best drag reducing effect cannot be implemented at all circumstances. Therefore, it is necessary to adjust the size and shape of sharkskin morphology to accommodate more potential flowing conditions. In this paper, the stretching deformed fabrication process of sharkskin surface is explored and investigated, and the super-hydrophobic and hydrodynamic drag reduction effect is inspected. The experimental results in the water tunnel indicate that the stretched sharkskin can expand the speed scope of applications with satisfactory drag reduction effect. Additionally, the drag reduction mechanism is explained and derived comprehensively, which has important significance to apprehend sharkskin effect. |
Databáze: | OpenAIRE |
Externí odkaz: | |
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