Open-loop cavity flow control with Micro-Magneto-Mechanical Systems (MMMS) microvalves - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Open-loop cavity flow control with Micro-Magneto-Mechanical Systems (MMMS) microvalves

Romain Viard
  • Fonction : Auteur
  • PersonId : 844863
Eric Garnier
  • Fonction : Auteur
  • PersonId : 1091138
Denis Sipp
  • Fonction : Auteur
  • PersonId : 958228
  • IdHAL : denissipp

Résumé

A design of Micro-Magneto-Mechanical microvalves is proposed in this paper to perform open-loop flow control experiments on an open-cavity flow. The unstable flow developing over the open cavity is sensitive to the velocity fluctuations induced by a forcing. Consequently, a linear array of microvalveshas been integrated on the upstream wall of an open-cavity. Both quasi-steady and pulsed jets effects of the actuators on the flow were studied. Microvalves jets reduced the open -cavity oscillations. A reduction of 20 dB in the cavity fundamental amplitude sound pressure level was measured. Dependingon the forcing frequency, pulsed jets could further reduce this amplitude.
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Dates et versions

hal-03998271 , version 1 (21-02-2023)

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Citer

T. Arnoult, C. Leclercq, Cécile Ghouila-Houri, Romain Viard, Q. Gallas, et al.. Open-loop cavity flow control with Micro-Magneto-Mechanical Systems (MMMS) microvalves. 9th European conference for aeronautics and space sciences (EUCASS 2022), Association Aéronautique et Astronautique de France (3AF), Jun 2022, Lille (FR), France. ⟨10.13009/EUCASS2022-4903⟩. ⟨hal-03998271⟩
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