The configuration of a light bubble rising in heavy matter.
Profiles of scaled density, temperature, and the rate of energy release for a planar deflagration front. Dashed lines illustrate the computational grid.
Density (a) and vorticity (b) at the deflagration front, propagating upwards for , , acceleration points to the left, from heavy to light plasma. Vorticity changes from to , and it is almost zero in the heavy plasma.
Scaled deflagration speed vs time for , 40, 160.
Temperature distribution for stationary deflagration fronts at , 40, 160 for (a), (b), (c), respectively.
The deflagration speed vs for , (filled squares), , (empty squares), and , (circles). The dashed line corresponds to the Layzer formula, Eqs. (35) and (2) for . The solid line represents Eq. (39). The triangle stands for the simulation results (Ref. 8), and crosses show the results of Ref. 23.
Scaled maximal vorticity in the light plasma vs scaled gravitational acceleration. The dashed and solid lines correspond to Eqs. (41) and (42), respectively. The empty markers indicate the simulation runs, for which bubble dynamics becomes nonstationary.
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