The evaporation of the charged and uncharged water drops suspended in a wind tunnel

摘要: A laboratory experiment has been performed to study the effect of ventilation on rate evaporation millimeter sized charged and uncharged water drops suspended in a vertical wind tunnel. The linear relationship,f u = 0.907 + 0.282X, observed between mean coefficient, fu, non-dimensional parameterX, (X =N Sc,v 1/3 N Re 1/2 whereN Sc,uis Schmidt number andN Reis Reynold’s number) is agreement with results earlier investigations for drops. However, case carrying 10-10C charge, this relationship gets modified tof 0.4877 0.149X. Thus, slower than that same size. Oscillations drop change airflow around are suggested contribute lowering coefficients Applicability small fraction highly raindrops falling through sub-cloud layer below thunderstorm discussed. relaxation time required ventilated reach its equilibrium temperature increases size higher It concluded given distance, will evaporate less