Thursday, August 1, 2013

1307.8357 (S. Glazyrin)

Turbulence generation by the Rayleigh-Taylor-Landau instability in SNIa and its influence on the flame front    [PDF]

S. Glazyrin
Turbulence significantly influences the dynamics of flame in SNIa. The large Reynolds number makes impossible the direct numerical simulations of turbulence, and different models of turbulence have to be used. Here we present the simulations with the $k$-$\epsilon$ model. The turbulence is generated by the RTL instability and crucially influences flame front velocity, resulting in $v_{\rm flame}\sim 300$ km/s.
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