Synthetic jet actuator with two opposite diaphragms

• Autorzy: Smyk Emil , Wawrzyniak Sylwester , Peszyński Kazimierz

Identyfikatory

DOI

10.2478/mme-2020-0004

• Języki publikacji: EN

Abstrakty

EN

The synthetic jet actuators are one of the most investigated types of actuators used in heat transfer and active flow control. The energetic efficiency of actuators is a key parameter determining the possibility of device use. The actuators with two or more diaphragms have higher efficiency than the actuators with only one. The paper presents the investigations of the acoustic synthetic jet actuator with two opposite diaphragms. In the paper, synthetic jet velocity, Reynolds number and the energetic efficiency as a function of oscillating actuator frequency, for a different cavity, orifice configuration and one real input power P₀ = 2 W were studied. The possibility of theoretical calculation of first and second resonance frequency were checked. The coupling ratio for actuators was calculated. The maximum energetic efficiency was η = 8.67% and Reynolds number Re = 8503. The possibility of using the same dependencies and rules during the design of actuators with two opposite diaphragms as in the case of actuators with one diaphragm was demonstrated. The resultsmay be useful in the design of the actuators of the two membranes.

Słowa kluczowe

EN

zero-net-mass flux; coupling ratio; two diaphragms actuator; efficiency

PL

przepływ o zerowym wydatku masowym; współczynnik sprzężenia; serwomechanizm; wydajność

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2020
• Tom: Vol. 24, nr 1
• Strony: 17--25
• Opis fizyczny: Bibliogr. 34 poz., 1 fot., rys., wykr.

Twórcy

autor

Smyk Emil

• Department of Mechanical Engineering, UTP University of Science and Technology, Al. Prof. S. Kaliskiego 7, Bydgoszcz, 85-796, Poland

autor

Wawrzyniak Sylwester

• Department of Mechanical Engineering, UTP University of Science and Technology, Al. Prof. S. Kaliskiego 7, Bydgoszcz, 85-796, Poland

autor

Peszyński Kazimierz

• Department of Mechanical Engineering, UTP University of Science and Technology, Al. Prof. S. Kaliskiego 7, Bydgoszcz, 85-796, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).