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Bio-replicated forming of the biomimetic drag-reducing surfaces in large area based on shark skin

  • Xin Han*
  • , De Yuan Zhang
  • , Xiang Li
  • , Yuan Yue Li
  • *Corresponding author for this work
  • Beihang University

Research output: Contribution to journalArticlepeer-review

Abstract

On the investigation of biomimetic drag-reducing surface, direct replication of the firm scarfskins on low-resistance creatures to form biomimetic drag-reducing surfaces with relatively vivid morphology relative to the living prototype is a new attempt of the bio-replicated forming technology. Taking shark skin as the bio-replication template, the hot embossing method was applied to the micro-replication of its outward morphology. Furthermore, the skins were jointed together to form the drag-reducing surface in large area. The results of the resistance measurements in a water tunnel according to the flat-plate sample pieces have shown that the biomimetic shark-skin coating fabricated by the bio-replicated forming method has significant drag reduction effect, and that the drag reduction efficiency reached 8.25% in the test conditions.

Original languageEnglish
Pages (from-to)1587-1592
Number of pages6
JournalChinese Science Bulletin
Volume53
Issue number10
DOIs
StatePublished - May 2008

Keywords

  • Bio-replicated forming
  • Biomimetic drag-reducing surface
  • Hot embossing
  • Shark skin

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