Rayleigh–Taylor instability in dielectric fluids
Rayleigh–Taylor instability in dielectric fluids
复制标题
介电流体中的瑞利-泰勒不稳定性
DOI：
10.1063/1.3435342
复制
发表时间：
2010
影响因子：
4.6
通讯作者：
N. Rudraiah
中科院分区：
文献类型：
--
作者：
A. Joshi;M. Radhakrishna;N. Rudraiah
在非均匀电场的存在下，电介质流体上的力被示出以减少它们的比重。适当选择的场梯度使叠加流体的比重相等，并防止瑞利-泰勒不稳定性。我们推导出的色散关系的扰动叠加介电流体的界面处，线性理论的范围内，依次为理想的，牛顿的，和那些分层粘度。无量纲介电数示出，以确定该安排的稳定性。
Force on dielectric fluids in the presence of a nonuniform electric field is shown to reduce their specific weights. An appropriately chosen field gradient makes the specific weights of superposed fluids equal and prevents Rayleigh–Taylor instability. We derive the dispersion relation for perturbation at the interface of superposed dielectric fluids, within limits of linear theory, successively for ideal, Newtonian, and those with stratified viscosity. A dimensionless dielectric number is shown to determine the stability of the arrangement.