Structure of the turbulent mixing zone on the boundary of two gases accelerated by a shock wave

Acceleration and turbulence in Rayleigh–Taylor mixing

“…While a complete understanding of RT mixing requires extensive theoretical, experimental and numerical studies, it is not clear that the framework of classical Kolmogorov turbulence is adequate to interpret some observed results [3,5,6,10,19]. We have provided a theoretical framework, which explains the observed results qualitatively and produces specific results that can be applied for interpretation of accurate experimental and numerical data.…”

“…If these standard features hold true in the RT flow as well, the rate of stretching by turbulence to the mean stretching is given in the bulk of the flow by gt 3 know how to characterize the interface conditions completely and accurately, though one can presume that it may attain an approximately fractal shape as in a variety of other flows [9].…”

What is certain and what is not so certain in our knowledge of Rayleigh–Taylor mixing?

“…It appeared that RT mixing flow keeps significant degree of order, when it is strongly accelerated and its Reynolds number is high, Re > 10 6 [17,73,74,78]. At the same time, in experiments and simulations of RT mixing with relatively low Reynolds numbers Re ∼ 10 3 [50,78,79] the observation of statistically steady turbulence is reported.…”

“…An intriguing puzzle of RT mixing dynamics was observed recently in the experiments in strongly accelerated fluids [17,73], in the experiments in high energy density plasmas [74,75], and in the large-scale numerical simulations of the ICF [76,77]. It appeared that RT mixing flow keeps significant degree of order, when it is strongly accelerated and its Reynolds number is high, Re > 10 6 [17,73,74,78].…”

Shock-interface interaction: Current research on the Richtmyer-Meshkov problem

“…These include laser scattering techniques (Meshkov 1989;Benjamin 1989;Jacobs and Budzinski;, infrared absorption and emission 0-1ouas 1988), holography (Stearman 1989), and x-ray absorption (Bonazza and Smrtevant 1991).…”