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Investigation of Oscillation Modes in a High-Speed Flow with Heat Supply. II. Numerical Simulation.
- Source :
-
Combustion, Explosion, & Shock Waves . Oct2022, Vol. 58 Issue 5, p546-554. 9p. - Publication Year :
- 2022
-
Abstract
- Results of numerical simulations of turbulent reacting flows in a channel with sudden expansion with due allowance for injection of hydrogen jets into a supersonic (M = 4) air flow are reported. The simulations are performed in a three-dimensional unsteady formulation with the use of the ANSYS Fluent software under the conditions of experiments performed in the IT-302M high-enthalpy wind tunnel. The computations predict a self-oscillatory regime with intense oscillations of pressure and integral heat release. The period-averaged pressure distribution is in reasonable agreement with the experimental measurements, and the frequency of pressure oscillations is within the range obtained in the experiments. Based on a detailed analysis of the flow characteristics within the full cycle of oscillations, the feedback mechanism responsible for the emergence of self-supported oscillations is refined. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00105082
- Volume :
- 58
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Combustion, Explosion, & Shock Waves
- Publication Type :
- Academic Journal
- Accession number :
- 160202674
- Full Text :
- https://doi.org/10.1134/S0010508222050069