09/27

Reading verification:

1.

List a complete set of mutually independent nondimensional numbers on which heated flow through a contant area duct depends.

2.

Which conservation equation changes due to the heat addition?

Energy.

3.

Choked means

(a)

that we can no longer change the flow without destroying it

(b)

that the flow enters the constant area duct at Mach 1

(c)

that mass, momentum, and energy are preserved

(d)

that wooden stops are placed around the wheels of the plane

4.

Which is right

(a)

flows cannot be choked unless they are adiabatic

(b)

subsonic flows cannot be choked, supersonic flows cannot be choked

(c)

subsonic flows cannot be choked, supersonic flows can be choked by adding heat

(d)

subsonic flows cannot be choked, supersonic flows can be choked by removing heat

(e)

subsonic flows can be choked by adding heat, supersonic flows cannot be choked

(f)

subsonic flows can be choked by adding heat, supersonic flows can be choked by adding heat

(g)

subsonic flows can be choked by adding heat, supersonic flows can be choked by removing heat

(h)

subsonic flows can be choked by removing heat, supersonic flows cannot be choked

(i)

subsonic flows can be choked by removing heat, supersonic flows can be choked by adding heat

(j)

subsonic flows can be choked by removing heat, supersonic flows can be choked by removing heat