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Using the resonance phenomenon for a high efficiency of a pulse-operating ejector

Using the resonance phenomenon for a high efficiency of a pulse-operating ejector The paper presents the results of computational and experimental study for parameters of the innovative pulse-mode ejector used as a flow control device for flight vehicles. The ejector comprises a Helmholtz resonator adjusted to a certain resonant frequency. The computational and experimental results revealed the existence of resonant modes in ejector operation providing a higher efficiency. Simulation for internal aerodynamics for the pulse-mode ejector can explain a high efficiency calculated by the high-pressure gas flow rate, as well as advantages/shortcomings in other metrics (compared to the steady operation mode). The margins of efficient operation of this resonance-operating ejector in the metrics of gas flow rate are calculated. The perspectives for using the ejector as a flow control devices are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Using the resonance phenomenon for a high efficiency of a pulse-operating ejector

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Publisher
Springer Journals
Copyright
Copyright © A.V. Voevodin, A.S. Petrov, and G.G. Soudakov 2022
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/s0869864322020056
Publisher site
See Article on Publisher Site

Abstract

The paper presents the results of computational and experimental study for parameters of the innovative pulse-mode ejector used as a flow control device for flight vehicles. The ejector comprises a Helmholtz resonator adjusted to a certain resonant frequency. The computational and experimental results revealed the existence of resonant modes in ejector operation providing a higher efficiency. Simulation for internal aerodynamics for the pulse-mode ejector can explain a high efficiency calculated by the high-pressure gas flow rate, as well as advantages/shortcomings in other metrics (compared to the steady operation mode). The margins of efficient operation of this resonance-operating ejector in the metrics of gas flow rate are calculated. The perspectives for using the ejector as a flow control devices are discussed.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Mar 1, 2022

Keywords: ejector; resonance; computation; experiment

References