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Effect of Porous Lining on Reducing the Growth Rate of Raleigh-Taylor Instability in the Inertial Fusion Energy Target

N. Rudraiah

Fusion Science and Technology / Volume 43 / Number 3 / May 2003 / Pages 307-311

Technical Paper / Targets and Target Protection During Injection

Rayleigh-Taylor instability of a laser accelerated ablative surface of a thin target shell with an incompressible fluid saturated porous lining is investigated using linear stability analysis. A simple theory based on replacing the no-slip effect with the Saffman slip condition is proposed. It is shown that the growth rate is greatly reduced over the value it would have if the shell is bounded by an impermeable boundary. This is useful in the very effective extraction of inertial fusion energy.

 
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