Observations of three-dimensional Richtmyer-Meshkov instability on a membraneless gas bubble.
Phys Rev E Stat Nonlin Soft Matter Phys
; 87(5): 051002, 2013 May.
Article
in En
| MEDLINE
| ID: mdl-23767479
ABSTRACT
We investigate the three-dimensional evolution of shock impact on a membraneless gas bubble. When a shock wave impacts a gas interface, gas layer is generally perturbed via the Richtmyer-Meshkov instability. We show the vortex structure evolves from the merging process of the extending spikes on the compressed D-shaped surface via the Richtmyer-Meshkov instability. The spikes are found to have a linear growth before 11 µs (of 1.4 mm). A ripple-typed fluctuating ring structure is observed and discussed with the scaling relation. We also notice that a thin layer exists in the intersection of the counterpropagating shock shells. The superposition of the rarefaction waves from both sides of the intersection is suspected to be responsible for the density change.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Models, Molecular
/
Gases
/
Models, Chemical
Language:
En
Journal:
Phys Rev E Stat Nonlin Soft Matter Phys
Journal subject:
BIOFISICA
/
FISIOLOGIA
Year:
2013
Document type:
Article
Affiliation country:
China