Effect of Axial Currents on the Capillary Instability of a Gas-Core Liquid Jet

抄録

The capillary instability of an incompressible inviscid, electrically conducting fluid cylinder immersed in another liquid, in the presence of axial currents is considered. The results with zero current show that the range of instability of the gas-core liquid jet is the same as that of full liquid cylinder. The case when the model is affected by the current is studied and it is found that the current has a destabilizing influence. With increasing the current intensity the domain of instability is increasing. In fact both the growing rate of instability and the critical wavenumber are extensively increasing. This showed that how much the domain of instability is extended and expanded with increasing the intensity of the current. Some reported works are recovered as limiting cases from the present result.