Abstract： On the basis of incompressible viscid magnetohydrodynamic equations, a formula is developed to study the mitigation of viscosity on the Rayleigh-Taylor instability in Z pinches. The results indicate that in the whole wavenumber region, the viscosity effect can mitigate the instability. In addition, we compare the viscosity effect with the finite Larmor radius effect [Chin. Phys. Lett. 19 (2002) 217], and the calculation results show that in the temperature region of interest, the former is stronger than the latter. Moreover, for heavy wire-array implosion the viscosity effect is stronger than the finite Larmor radius one, because the former is proportional to m1/2i and the latter is independent of mi.
QIU Xiao-Ming;HUANG Lin;JIAN Guang-De. Stabilization of Viscosity on Rayleigh-Taylor Instability in Z Pinches[J]. 中国物理快报, 2004, 21(4): 689-692.
QIU Xiao-Ming, HUANG Lin, JIAN Guang-De. Stabilization of Viscosity on Rayleigh-Taylor Instability in Z Pinches. Chin. Phys. Lett., 2004, 21(4): 689-692.
YANG Qing-Wei;ZHOU Hang-Yu;FENG Bei-Bin;LIU Yi;PAN Yu-Dong;LI Wei;DUAN Xu-Ru;CHEN Wei;CUI Zheng-Ying;JI Xiao-Quan;DING Xuan-Tong;HL-A team. A New Criterion for Disruption Prediction on HL-2A[J]. 中国物理快报, 2006, 23(4): 891-894.
2004, Vol. 21 
