Figure 14.
The panel a shows velocity contours at 6.6, 18.6, and 34.4 milli newtons per metre, with x from negative 300 to 300 micrometres and velocity from 0 to 60 metres per second. Graph b shows jet diameter increasing from about 5.8 to 7.2 micrometres as surface tension increases. Graph c shows jet length decreasing from about 260 to about 80 micrometres, with a small rise near 25 milli newtons per metre.Surface tension influence on the EFF jet diameter and length at the gas pressure of 2 kPa, the liquid flow rate of 0.75 ml/h and the electric potential of 0.75 kV
Note(s): The figure shows (a) the gas velocity field with streamlines inside the capillary needle, (b) jet diameter and (c) jet length with standard deviation in grey colour
Source: Authors’ own work