Morphology of shocked lateral outflows in colliding hydrodynamic flows

Supersonic interacting flows occurring in phenomena, such as protostellar jets, give rise to strong shocks and have been demonstrated in several laboratory experiments. To study such colliding flows, we use the AstroBEAR AMR code to conduct hydrodynamic simulations in three dimensions. We introduce...

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Bibliographic Details
Published in:Physics of plasmas 2022-10, Vol.29 (10)
Main Authors: Markwick, R. N., Frank, A., Carroll-Nellenback, J., Blackman, E. G., Hartigan, P. M., Lebedev, S. V., Russell, D. R., Halliday, J. W. D., Suttle, L. G.
Format: Article
Language:English
Subjects:
Conical bodies
Conical flow
Cross-sections
Hypersonic flow
Outflow
Plasma physics
Protostars
Ram pressure
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Summary:Supersonic interacting flows occurring in phenomena, such as protostellar jets, give rise to strong shocks and have been demonstrated in several laboratory experiments. To study such colliding flows, we use the AstroBEAR AMR code to conduct hydrodynamic simulations in three dimensions. We introduce variations in the flow parameters of density, velocity, and cross-sectional radius of the colliding flows in order to study the propagation and conical shape of the bow shock formed by collisions between two, not necessarily symmetric, hypersonic flows. We find that the motion of the interaction region is driven by imbalances in ram pressure between the two flows, while the conical structure of the bow shock is a result of shocked lateral outflows being deflected from the horizontal when the flows are of differing cross sections.
ISSN:1070-664X
1089-7674
DOI:10.1063/5.0095166