For a nozzle-duct system shown in Fig.Q3, the nozzle is designed to produce a Mach number of 2.8 with y = 1.4. The inlet conditions are po1 = 10 bar and To1 = 370 K. The duct is 8 diameters in length, but the duct friction factor is unknown. The receiver pressure is fixed at 3 bar and a normal shock has formed at the duct exit. (a) Determine the friction factor of the duct. (b) What is the total change in entropy for the system? T- 370 K Pne 3 bar Fig.03 -Ar= SD-

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A: given data;⇒pressure(P)=1*105N/m2⇒temperature(T)=350K⇒mack number(M)=3.5

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Q: e end of the pipe. If the number, the mass flow

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A: Given data:

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A: D=.15 mL= 5m P0=1.4 Mpa T0=335 KM1=.55

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A: Solution   Calculate the deflection angle α          tanα=2tanθM2sin2θ-1M2γ+cos2θ+2

Q: Parvinbhai

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.