transient throttling

From the simulations and analysis , the following outputs come out:

1.)There is change in mass flow rate i.e. it decreases by 0.06kg/s within 2 mili seconds and increases gradually with fluctuation upto 4 mili seconds.

2.)The mass flow rate increases upto 0.055 kg/s at outlet within 2 mili seconds and the reduces to 0.043 kg/s withinn 4 mili seconds .

3.)The static pressure at the inlet decreases from 150,000 to 126585 pa and gradually fluctuates between 126586 to 137486 pa.

4.) The average temperature fluctuates between 300 to 296k , then sharply decreases to 285.78k.

5.)The average density decreases upto 1.53 kg/m3 and then increases upto 1.64kg/m3 and fluctuates between 1.64kg/m3 and 1.62 kg/m3.

6.)The maximum mach number at inlet is 0.5 .

7.) The maximum flow rate at the outlet is 0.055 kg/s.

8.)The total pressure increases from 100,000 to 125,000 pa and decreases to 115,791 paa and then fluctuates between 115791 to 118,000pa .

9.)The average velocity t outlet goes upto 189m/s.

10.)The maximum mach no. at the outlet is 0.057 and .