D. K. Tiwari and Mukesh Kumar Awasthi and G. S. Agrawal
Study on Electrohydrodynamic Capillary Instability with Heat and Mass Transfer
1362 - 1369
2013
7
8
International Journal of Physical and Mathematical Sciences
https://publications.waset.org/pdf/17210
https://publications.waset.org/vol/80
World Academy of Science, Engineering and Technology
The effect of an axial electric field on the capillary instability of a cylindrical interface in the presence of heat and mass transfer has been investigated using viscous potential flow theory. In viscous potential flow, the viscous term in NavierStokes equation vanishes as vorticity is zero but viscosity is not zero. Viscosity enters through normal stress balance in the viscous potential flow theory and tangential stresses are not considered. A dispersion relation that accounts for the growth of axisymmetric waves is derived and stability is discussed theoretically as well as numerically. Stability criterion is given by critical value of applied electric field as well as critical wave number. Various graphs have been drawn to show the effect of various physical parameters such as electric field, heat transfer capillary number, conductivity ratio, permittivity ratio on the stability of the system. It has been observed that the axial electric field and heat and mass transfer both have stabilizing effect on the stability of the system.
Open Science Index 80, 2013