Aerospace Engineering > GATE 2026 > Fanno Flow
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 f of the duct is ________ × 10−3 (rounded off to 1 decimal place).
An excerpt from the Fanno flow table for air is given below.
An excerpt from the Fanno flow table for air is given below.
Correct : 9.4
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