Figure 5: Photographs of electrified cones of ethylene gylcol at various extreme electrostatic conditions within which the emitted current depends only on flow rate and not on voltage difference V, or the distance l between needle and ground. In(a) and(b)v=5kV(la=41.0nA) and 3 kV(Ib=41. 6 nA)respectively; L=9mm. In(c)the liquid reaches the surface before opening into a spray. Fig 6: Structure of the cone jet for the same solution as figure 5 at higher magnification The dimensionless flow rate variable(1)is n=2 (Re=10.2) 16.522, Space Pre Lecture 23-25 Prof. Manuel mar ropelsinnchez Page 11 of 3616.522, Spac e Propuls i o n Lecture 23- 2 5 Prof. Manuel M artinez-Sanchez Page 11 of 36