GATE AE · 2026 · AE
Question 64: Compressible Flows
Give it a try, then reveal the answer to check your work.
Question 64
AENAT2 marksNeeds review
Consider a centered Prandtl-Meyer expansion fan at a
corner in a Mach 1.78 air flow, as shown in the figure below. The angle
(see figure) made by the ending wave of the fan with respect to the incoming stream is ________ degrees (rounded off to 1 decimal place).An excerpt from the table of Prandtl-Meyer function for air is provided below.
M | [deg] | M | [deg] | M | [deg] |
|---|---|---|---|---|---|
1.72 | 18.40 | 1.82 | 21.30 | 1.92 | 24.15 |
1.74 | 18.98 | 1.84 | 21.88 | 1.94 | 24.71 |
1.76 | 19.56 | 1.86 | 22.45 | 1.96 | 25.27 |
1.78 | 20.15 | 1.88 | 23.02 | 1.98 | 25.83 |
1.80 | 20.73 | 1.90 | 23.59 | 2.00 | 26.38 |
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerEXPLORE & PRACTISE
Paper and topic context
See where this question comes from and choose what to practise next.
2026AE
GATE AE 2026 · Paper 1
Aerospace Engineering · Original paper archive
- Section
- Aerospace Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
Practise related topics
Explore more previous year questions using this question’s imported topic tags.
aerospace engineering
GATE AE previous year questions
aerodynamics
GATE AE previous year questions
flight mechanics
GATE AE previous year questions
compressible flows
GATE AE previous year questions
Comments
Ask a question, share your approach, or help someone understand.
Log in to view the discussion
You’re not logged in. Log in or create an account to see discussions and add comments.