Chapter 8 Quiz

When calculating the thermal entrance length for hydrodynamically developed and thermally developing forced convective laminar flow, which of the correlation should be used?

• L_t = 0.05RePrD

• L_t = 0.12RePrD

• L_t = 10D

• 

When can you expect a Nusselt number of 3.66?

• Laminar flow

• Fully developed flow with T_s = constant boundary condition

• Force convective flow, fully developed laminar flow with T_s = constant boundary condition

• Fully developed laminar flow through a circular tube

When calculating the thermal entrance length for simultaneously developing mixed convective laminar flow, which of the correlation should be used?

• L_t = 0.05RePrD

• L_t = 0.12RePrD

• L_t = 10D

• 

When calculating the Reynolds number for flow through a square duct, which correlation should be used for a given mass flow rate?

When calculating the thermal entrance length for forced convective turbulent flow, which of the correlation should be used?

• L_t = 0.05RePrD

• L_t = 0.12RePrD

• L_t = 10D

•