Aerospace Engineering
GATE AE concept:fanno-flow PYQs
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How to practice concept:fanno-flow
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–3 of 3. Imported answers require independent review unless marked reviewed.
Question 30
Open questionAEMSQ1 markNeeds review
A flow is steady, inviscid and one-dimensional, with no shaft work or body forces. Which of the following is/are possible under the given conditions?
Your answerSelect all correct options. You can choose more than one.
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Open questionAENAT2 marksNeeds review
A Mach 1.5 air flow enters a round duct of length 20 cm and diameter 3 cm. If the flow exits with Mach number 1.1, the average Fanning friction factor
of the duct is ________
(rounded off to 1 decimal place).An excerpt from the Fanno flow table for air is given below.
| 1.1 | 1.2 | 1.3 | 1.4 | 1.5 | 1.6 |
|---|---|---|---|---|---|---|
| 99.35 | 336.4 | 648.3 | 997.4 | 1361 | 1724 |
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 59
Open questionAENAT2 marksNeeds review
Consider the following Fanno flow problem: Flow enters a constant area duct at a temperature of 273 K and a Mach number 0.2 and eventually reaches sonic condition (Mach number = 1) due to friction. Assume
. The static temperature at the location where sonic condition is reached is ____________ K (rounded off to 2 decimal places).Log in to check the answer
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