Email this article Compressible Flows with Oscillating Boundaries
- Authors: Logvinov O.A.1
-
Affiliations:
- Moscow State University, Mechanics and Mathematics Department
- Issue: No 3 (2023)
- Pages: 36-46
- Section: Articles
- URL: https://journals.rcsi.science/1024-7084/article/view/135071
- DOI: https://doi.org/10.31857/S1024708422600828
- EDN: https://elibrary.ru/TMPLGN
- ID: 135071
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Abstract
The flow of a viscous compressible heat-conducting fluid in a plane channel with rigid oscillating walls is considered. It is shown that even a vanishingly small compressibility can be the reason for the onset of a resonance, i.e., sharp increase in the amplitude of oscillations of the flow parameters at a properly selected wall oscillation frequency. An exact analytical expression for the leading resonant frequency is given. Numerical calculations have demonstrated the possibility of a cumulative effect, namely, sharp increase in the mass flow rate even at constant pressure gradient.
About the authors
O. A. Logvinov
Moscow State University, Mechanics and Mathematics Department
Author for correspondence.
Email: oleglogvinov@mail.ru
Moscow, Russia
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