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Analysis of the effects of energy deposition on shock-driven turbulent mixing
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10.1063/1.4816035
/content/aip/journal/pop/20/7/10.1063/1.4816035
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/7/10.1063/1.4816035
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Target geometry.

Image of FIG. 2.
FIG. 2.

Schematic shock-interface diagram depicting progression of events in the laser-driven experiments without energy deposition. Crossing locations are approximate.

Image of FIG. 3.
FIG. 3.

visualization for resolution 3D data from Ref. along with present simulations with energy deposition. The blue surface is a density isosurface, reflecting the approximate location of the Be tube interface. For reference, the second shock enters the mixing layer (“reshock”) at  = 10 ns and exits the mixing layer at  = 17 ns.

Image of FIG. 4.
FIG. 4.

Volumetrically integrated TKE and mixing from Ref. , with no added energy; for reference, initially nonperturbed, and perturbed material interfaces were also considered.

Image of FIG. 5.
FIG. 5.

CDFs of the vorticity magnitude from Ref. , with no added energy. Sampling regions are indicated within red lines on distributions of vorticity magnitude ω. The DNS data is from Jiménez . The simulated data was filtered based on vorticity content by setting for , with the vorticity magnitude threshold chosen such that . Comparison with the DNS data suggests reaches a value close to 100 for the 2.5 m resolution data.

Image of FIG. 6.
FIG. 6.

(a) Mixing width measure for the simulation without energy deposition and the simulations with energy deposition. (b) Asymptotic outer-scale for the simulation without energy deposition and the simulation with energy deposited at 12 ns.

Image of FIG. 7.
FIG. 7.

and . For reference, the second shock enters the mixing layer (“reshock”) at  = 10 ns and exits the mixing layer at  = 17 ns.

Image of FIG. 8.
FIG. 8.

Integrated flow quantities for the 3D simulations.

Image of FIG. 9.
FIG. 9.

CDFs of vorticity sampled from a uniform grid. Sampling regions (within red lines) on distributions of vorticity magnitude ( ).

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/content/aip/journal/pop/20/7/10.1063/1.4816035
2013-07-22
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Analysis of the effects of energy deposition on shock-driven turbulent mixing
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/7/10.1063/1.4816035
10.1063/1.4816035
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