
(a)
If the flow will still be supersonic in the throat.

Answer to Problem 9.51P
The Mach number at throat is equal to
The flow is supersonic.
Explanation of Solution
Given information:
Mach number at entrance is equal to,
The altitude is
Inlet area is
The minimum area is
Exit area is
For perfect gas, where
Area change is defined as,
Calculation:
Area change is defined as,
Therefore,
Therefore,
Throat area will be,
For section 2,
According to the table which represents the isentropic flow of a perfect gas,
Therefore by interpolation,
The flow is supersonic.
Conclusion:
The Mach number at throat is equal to
The flow is supersonic.
(b)
To find: the exit Mach number.

Answer to Problem 9.51P
Explanation of Solution
Given information:
Mach number at entrance is equal to,
The altitude is
Inlet area is
The minimum area is
Exit area is
For perfect gas, where
Area change is defined as,
Calculation:
Area change is defined as,
Therefore,
Throat area will be,
At exit,
According to the table which represents the isentropic flow of a perfect gas,
Therefore by interpolation,
Conclusion:
The Mach number at exit is equal to
(c)
To calculate:
The exit velocity.

Answer to Problem 9.51P
Explanation of Solution
Given information:
Mach number at entrance is equal to,
The altitude is
Inlet area is
The minimum area is
Exit area is
The temperature ratio is defined as,
Speed of sound is defined as,
Where,
The Mach number is defined as,
Where,
Calculation:
At altitude of
According to table A.6 which represents the properties of standard atmosphere,
Calculate the stagnation temperature,
Calculate the exit temperature,
Calculate the exit velocity,
Conclusion:
The exit velocity is equal to
(d)
To calculate:
The exit pressure.

Answer to Problem 9.51P
Explanation of Solution
Given information:
Mach number at entrance is equal to,
The altitude is
Inlet area is
The minimum area is
Exit area is
The pressure ratio is defined as,
Where,
Calculation:
At altitude of
According to table A.6 which represents the properties of standard atmosphere,
Calculate the stagnation pressure,
Calculate the exit pressure,
Conclusion:
The exit pressure is equal to
Want to see more full solutions like this?
Chapter 9 Solutions
Fluid Mechanics
- Solve, use engineering economic tablesarrow_forwardSolve, use engineering economic tablesarrow_forwardA pinion has a pressure angle of 20 degrees a module of 3mm and 20 teeth. It is meshed with a gear having 32 teeth. The center distance between the shafts is 81mm. Determine the gear ratio and diametral pitch .arrow_forward
- USE MATHLAB WITH CODES Estimate the damping ratio, stiffness, natural frequency, and mass of the SDOF system. Please use a MATHLAB with CODES and no negative damping ratio. Data Set 1:Time(s) Data Set 1:top1(g) Data Set 1:bottom(g)0 0.002593181 0.007262860.01 0.011367107528507709 -0.0015110660.02 0.007467585 -0.0058980290.029999999999999999 0.004542943 0.0028758970.040000000000000001 0.018678712689042091 -0.0019985060.050000000000000003 0.004542943 0.0009261360.059999999999999998 0.014779189431130886 -0.0068729090.070000000000000007 0.004055502 -0.0088226710.080000000000000002 0.008442465 -0.0015110660.089999999999999997 0.011854547366917134 -0.0039482670.10000000000000001 0.007467585 0.0058005390.11 0.004055502 0.0043382180.12 0.010392226334810257 0.0019010160.13 0.010392226334810257 -0.001998506% 0.14000000000000001 0.016728950301647186 0.0048256580.14999999999999999 0.007955025…arrow_forwardProvide an example of at least five features produced by a certain machining process (for example, a keyway to accommodate a key iarrow_forwardHow to draw a gam from the data of the subject's readings three times and difficulties in drawing a gam Material Name: Machinery Theory I'm a vehicle engineering student. Please describe details about gam in addition the law gam: 1-tangent cam with reciprocating roller follower. 2-circular arc cam with flat-faced follower.arrow_forward
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY





