madhu wrote:ramana wrote:So Madhu, Now that you did the calls what is your prognosis?
Is this design on path the achieve goals?
What needs to be done to get there?
What are unintended consequences of we adopt those measures?
What else we should know?
ramana, if I do the calculation to get to 52kN we need to change the moment. the momentum is a function of mass and velocity. since the nozzle is choked I cannot change the velocity. hence I need to change the mass flow from 78kg/s to 85kg/s or I need to change the TET to 2000. I doubt that even the competitors do not have so high TET.
Nozzle flow is function of throat area (exit area in this case), mass flow rate, Total pressure and total temperature. You can achieve more thrust for same mass flow rate by increasing temperature and pressure post A/B and adjusting nozzle exit area. How is your T0 and Po after A/B and before nozzle fixed..?