Investigation of Flow and Spectral Characteristics in a Flow-Flow Hydrodynamic Generator of the Flat Type with Changes in the Degree of Flow Blockage

The paper presents the results of studying the flow past cylindrical bodies located in a flat-type flow-through hydrodynamic generator. The result were obtained on the hydrodynamic test bench of the experimental base of the Scientific Center of the Mechanical Engineering Research Institute of the Ru...

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Bibliographic Details
Published in:Fluid dynamics 2023-04, Vol.58 (2), p.159-164
Main Authors: Ganiev, S. R., Kryukov, A. I., Rudakov, V. P., Shmyrkov, O. V.
Format: Article
Language:English
Subjects:
Bluff bodies
Classical and Continuum Physics
Classical Mechanics
Cylindrical bodies
Engineering Fluid Dynamics
Engineering research
Fluid- and Aerodynamics
Inlet pressure
Mechanical engineering
Physics
Physics and Astronomy
Pressure ratio
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Summary:The paper presents the results of studying the flow past cylindrical bodies located in a flat-type flow-through hydrodynamic generator. The result were obtained on the hydrodynamic test bench of the experimental base of the Scientific Center of the Mechanical Engineering Research Institute of the Russian Academy of Sciences with the degree of flow blockage by the bluff bodies S t / S 0 = 10– 82%, the Re numbers (0.5–5) × 10 5 , and the inlet pressure Р in = 0.1–0.9 MPa. It was found that at certain values of the inlet/outlet pressure ratio, which are constant for each of the degrees of flow blockage, powerful resonant-type pressure peaks arise at frequencies of 0.5–5 kHz with the amplitude more than 4–5 times higher than the maximum inlet pressure.
ISSN:0015-4628
1573-8507
DOI:10.1134/S0015462822602236