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sep 4, 1920 - Prandtl
Description:
Presented mean flow in triangular duct and in rectangular duct.
First report of turbulent secondary flows in non-circular ducts.
Added to timeline:
Secondary flow timeline
By
Michael Xie
5 Feb 2020
0
0
323
Date:
sep 4, 1920
Now
~ 105 years ago
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