The effects of an electrostatic field and air stream on water jet break‐up length

An experimental study of the break‐up length of a circular section liquid jet subject to the combined action of a coaxial airstream and an electrostatic field is reported. A high speed photographic technique has been employed and the results have been correlated empirically by the following dimensionless equation:\documentclass{article}\pagestyle{empty}\begin{document}$$ \frac{{L_o}}{{d_t}} = K\left[{We_a^{\frac{3}{2}} + 3\frac{{W_{e_l}}}{{{\mathop{\rm Re}\nolimits}}}} \right]^{- 0.22} \left({\frac{{\varepsilon _0 E_a^2 d_l}}{{1000\sigma}}} \right)^{- 0.13} {\mathop{\rm Re}\nolimits} ^b $$\end{document}where “b” and “k” are functions of Reynolds number.