The discharge Q through an orifice is found to depend on the parameter ρD /µ, when surface tension effect is neglected. Determine the ratio of flow rates of water and refrigerant 12 at 20oC under the...

The discharge Q through an orifice is found to depend on the parameter ρD

/µ, when surface tension effect is neglected. Determine the ratio of flow rates of water and refrigerant 12 at 20oC under the same head. What should be the ratio of heads for the same flow rate. µ_R
= 2.7 × 10^–4
kg/ms., µ_w
= 1.006 × 10^–3
kg/ms. Density of refrigerent = 923 kg/m³.