Study of coherent structures effect on mixing characteristics of jet injection into supersonic crossflow

The hydrogen jet injection through a circular orifice into a transverse supersonic M = 3.38 flow is investigated numerically in the current paper. The 3D computations are performed under the conditions of the experiments by Ben-Yakar (2006). The Delayed Detached Eddy Simulation (DDES) approach is us...

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Bibliographic Details
Main Authors: Valger, S., Fedorova, N.
Format: Conference Proceeding
Language:English
Subjects:
Computational fluid dynamics
Cross flow
Detached eddy simulation
Mathematical analysis
Orifices
Penetration depth
Qualitative analysis
Unsteady flow
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Summary:The hydrogen jet injection through a circular orifice into a transverse supersonic M = 3.38 flow is investigated numerically in the current paper. The 3D computations are performed under the conditions of the experiments by Ben-Yakar (2006). The Delayed Detached Eddy Simulation (DDES) approach is used to describe the transient flow’s features. The results of the numerical simulations are compared to the experimental data. A good qualitative agreement between the calculations and the experiment is obtained for the mean flow structure, bow shock position, and jet penetration depth. The use of the scale-resolving DDES approach made it possible to obtain in the calculations large vortex structures developing at the boundary between the jet and the main flow, making a considerable contribution to mixing primary and secondary gases.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0052034