Questions from Fundamentals of Aerodynamics

Q: Consider a centered expansion wave where M1=1.0 and

Consider a centered expansion wave where M1=1.0 and M2 =1.6. Using the method developed in Problem 10.17, plot to scale a streamline that passes through the expansion wave.

Q: A flow is isentropically expanded to supersonic speeds in a convergent-

A flow is isentropically expanded to supersonic speeds in a convergent-divergent nozzle. The reservoir and exit pressures are 1 and 0.3143 atm, respectively. What is the value of Ae/ A∗?

Q: A Pitot tube inserted at the exit of a supersonic nozzle reads

A Pitot tube inserted at the exit of a supersonic nozzle reads 8.92 *104 N/m2. If the reservoir pressure is 2.02 *105 N/m2, calculate the area ratio Ae/ A∗ of the nozzle.

Q: For the nozzle flow given in Problem 10.1, the

For the nozzle flow given in Problem 10.1, the throat area is 4 in2. Calculate the mass flow through the nozzle.

Q: A closed-form expression for the mass flow through a choked

A closed-form expression for the mass flow through a choked nozzle is Derive this expression.

Q: Repeat Problem 10.4, using the formula derived in Problem

Repeat Problem 10.4, using the formula derived in Problem 10.5, and check your answer from Problem 10.4.

Q: Consider a body of arbitrary shape. If the pressure distribution over

Consider a body of arbitrary shape. If the pressure distribution over the surface of the body is constant, prove that the resultant pressure force on the body is zero. [Recall that this fact was used...

Q: A convergent-divergent nozzle with an exit-to-throat

A convergent-divergent nozzle with an exit-to-throat area ratio of 1.616 has exit and reservoir pressures equal to 0.947 and 1.0 atm, respectively. Assuming isentropic flow through the nozzle, calcula...

Q: For the flow in Problem 10.7, calculate the mass

For the flow in Problem 10.7, calculate the mass flow through the nozzle, assuming that the reservoir temperature is 288 K and the throat area is 0.3 m2.

Q: Consider a convergent-divergent nozzle with an exit-to-

Consider a convergent-divergent nozzle with an exit-to-throat area ratio of 1.53. The reservoir pressure is 1 atm. Assuming isentropic flow, except for the possibility of a normal shock wave inside th...