4. The transition from laminar flow to turbulent flow in a forced convection situation is

determined by which one of the following dimensionless numbers?

a. Grashof b. Reynolds c. Nusselt d. Stanton

The _____ number represents the ratio of inertial forces to viscous forces and the _______

number represents the relative thickness of the velocity and the thermal boundary layers.

a. Reynolds, Eckert

d. Reynolds, Nusselt

c. Reynolds, Sherwood

b. Reynolds, Prandtal

Most correlations for Nusselt number use the dimensionless Reynolds number. Reynolds

number is defined as

a. Vk/h

b. h/k

c. hl./k

d. kLc/h

e. VL./v

One can expect the heat transfer coefficient for laminar flow to be_____ for turbulent flow.

a. Less than b. same as c. Greater than