Homework $5-$ Centrifugal Compressor Design Example

Make a literature research on NASA CC$3$ centrifugal compressor. Then, find the following data:

Mass flow rate, pressure ratio and rotational speed

Coordinates of the impeller

Then,

Step $1$: Guess the Mach number or meridional velocity

Step $2$: Calculate inlet velocity triangle at hub, mid and tip section

Step $3$: Calculate inlet tip relative Mach number

Step $4$: Calculate the specific speed of the compressor.

While doing this homework, make following assumptions:

Specific heat ratio and specific heat $=1\mathrm{.}4,c_p=1005\frac{(J)}{(kg)(K)}$

Assume meridional velocity is constant along the blade span at the inducer

No inlet swirl at the inlet, flow is axial