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Drag force reduction at the interface of tubular microrockets

  • School of Mechatronics Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Considerable efforts have been devoted to self-propelled microrockets during the past decades for its diverse potential applications, ranging from targeted drug delivery to environmental remediation. Particularly attention has been given to the chemical-driven rockets which are analogous to actuators and can convert chemical energy into mechanical energy to achieve a certain propulsion velocity or force. Since the drag force on the surface of microrockets dominates the resistance in the microfluidic systems, it is of interest to decrease the drag force for efficient propulsion. A new microrocket with lower drag force is proposed with a hydrophobic molecular layer, 1-Dodecanethiol layer, on the outer polyaniline surface of the rockets by using self-Assembly technology. The contact angle and the velocity of microrockets are determined before and after surface modification to quantify the drag force reduction. The findings of the research indicate that reducing drag force is a promising way for comprehensive application.

Original languageEnglish
Title of host publication20th Design for Manufacturing and the Life Cycle Conference; 9th International Conference on Micro- and Nanosystems
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791857113
DOIs
StatePublished - 2015
Externally publishedYes
EventASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2015 - Boston, United States
Duration: 2 Aug 20155 Aug 2015

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume4

Conference

ConferenceASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2015
Country/TerritoryUnited States
CityBoston
Period2/08/155/08/15

Keywords

  • Drag reduction
  • Hydrophobic
  • Microrocket
  • Self-Assemble
  • Tubular

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