# In the compressor characteristic, what does this value represent?

$$? = \frac{m_t* \sqrt{T_3}}{P_3}$$

All I know is that it is a material property of a turbine, it has something to do with the mach number, and is used for calculating $$W_T$$. It's kinda similar to the corrected mass flow rate but I guess I'm wrong.

I don't have any books on aerodynamics and I feel kinda lost...