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Patent Searching and Data


Title:
PHONONIC MATERIALS USED TO CONTROL TURBULENT FLOW
Document Type and Number:
WIPO Patent Application WO/2019/013992
Kind Code:
A3
Abstract:
A phononic material and a method of using a phononic material for use in interacting with a fluid or solid flow are provided. In one implementation, a phononic material includes an interface surface and a subsurface feature. The interface surface moves in response to pressure and/or velocity gradients associated with complex motion of a turbulent flow. The subsurface feature extends from the interface surface and comprises a phononic crystal or locally resonant metamaterial adapted to receive the pressure and/or velocity gradients from the turbulent flow via the interface surface and alter the phase and amplitude of a plurality of frequency components of the turbulent flow to reduce or increase the kinetic energy of the turbulent flow. The interface surface is adapted to vibrate at a plurality of frequencies, phases and amplitudes in response to the frequency, phase and amplitude of at least one component of the turbulent flow.

Inventors:
HUSSEIN, Mahmoud (2300 Arapahoe Ave, #104Boulder, Colorado, 80302, US)
BIRINGEN, Sedat (2300 Arapahoe Ave, #104Boulder, Colorado, 80302, US)
Application Number:
US2018/040114
Publication Date:
April 18, 2019
Filing Date:
June 28, 2018
Export Citation:
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Assignee:
THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE (1800 Grant Street, 8th FloorDenver, Colorado, 80203, US)
International Classes:
B64C21/10; F15D1/00; F15D1/06
Foreign References:
US20160097410A12016-04-07
US20170047499A12017-02-16
US20180023599A12018-01-25
Other References:
LIU ET AL.: "Effect of interface/surface stress on the elastic wave band structure of two- dimensional phononic crystals", PHYSICS LETTERS A, vol. 376, 2012, pages 605 - 609, XP028354532, DOI: doi:10.1016/j.physleta.2011.11.043
Attorney, Agent or Firm:
OSBORNE, Thomas J. (Dinsmore & Shohl LLP, 255 E 5th St #1900Cincinnati, Ohio, 45202, US)
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