Adaptive air inlet for fluid flow control

Gaetano Arena, Rainer Groh, Alex Brinkmeyer, Raf Theunissen, Paul Weaver, Alberto Pirrera

Research output: Contribution to conferenceConference Paperpeer-review

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Abstract

In this paper, we exploit structural instabilities and elastically nonlinear behaviour as an engineering tool for designing an adaptive air inlet for fluid flow control. The device includes a shape changing post-buckled composite plate, which regulates the inlet aperture of a connected duct by snapping in response to changes in the pressure field of a surrounding fluid. The post-buckling stresses of the composite plate induce the intrinsic capabilities required for multi-stable snap-through, while the post-buckled shape creates the aerodynamic pressure fields for actuation. These concepts are validated here by means of Fluid-Structure Interaction (FSI) simulations and wind tunnel experiments.
Original languageEnglish
Number of pages10
Publication statusPublished - 20 Aug 2017
Event21st International Conference on Composite Materials - Xi'an, China
Duration: 20 Aug 201725 Aug 2017

Conference

Conference21st International Conference on Composite Materials
CountryChina
CityXi'an
Period20/08/1725/08/17

Keywords

  • Adaptive structures
  • Air inlet
  • Wind Tunnel
  • Composites
  • Buckling
  • Post-buckling

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