Effects of compressibility on the Rayleigh-Taylor instability in Z-pinch implosions |
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Authors: | HUANG Lin JIAN Guang-de |
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Institution: | (Southwestern Institute of Physics, Chengdu 610041) |
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Abstract: | The effects of compressibility on the Rayleigh-Taylor instability in Z-pinch implosion plasmas are investigated by means of simple slab geometry.The linear mode equation,which includes main steady-state quantities and their gradients,is derived.Numerical solutions are presented.The incompressible fluid result is also obtained.These results indicate that the linear growth rate of the Rayleigh-Taylor instability for the compressible magnetohydrodynamic fluid is far larger than one in the incompressible situation.Therefore,the compressible systems are all more unstable than the incompressible ones. |
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Keywords: | Z-pinch Rayleigh-Taylor instability Compressibility Growth rate |
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