Chapter 14, Problem 132CP

Gasoline is piped underground from refineries to major users. The flow rate is $3.00\times {10}^{-2}{\text{m}}^{\text{3}}/\text{s}$ (about 500 gal/min), viscosity of gasoline is $3.00\times {10}^{-2}{\text{m}}^{\text{3}}/\text{s}$ , and its density is 680 kg/m³. (a) What minimum diameter must be pipe have if the Reynolds number is to be less 2000? (b) What pressure difference must be along each kilometer of be pipe to maintain flow rate?