Bonus

Despite the Orr–Sommerfeld equation always predicting stable eigenvalues for planar Couette (“coo-ET”) flow, this phenomenon is observed experimentally at a Reynolds number of about 360. For 10 points each:
[10e] Name this kind of unstable flow that is contrasted with laminar flow.
ANSWER: turbulent flow [accept turbulence]
[10m] A high Reynolds number and the presence of this process can indicate turbulent flow. A “street” named for von Kármán can form behind a body as it does this action to vortices.
ANSWER: vortex shedding
[10h] The onset of turbulence can be photographed using this imaging technique invented by August Toepler to view shock waves. Like the shadowgraph technique, it uses changes in refractive index as a proxy.
ANSWER: schlieren photography [or schlieren imaging]
<Physics>
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Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
Arizona StateOttawa100010E
British ColumbiaGeorgia State100010E
Chicago AWUSTL A10101030EMH
Chicago BMIT100010E
Columbia ANorthwestern1010020EM
Cornell AGeorgia Tech1010020EM
FloridaPenn State1010020EM
HarvardJohns Hopkins100010E
Illinois BVirginia10101030EMH
IndianaRutgers10101030EMH
MarylandNorth Carolina B1010020EM
MichiganCornell B100010E
MinnesotaIowa State100010E
NYUWaterloo B1010020EM
RITColumbia B1010020EM
StanfordNorth Carolina A10101030EMH
TexasToronto C100010E
Toronto AWaterloo A10101030EMH
Toronto BVirginia Tech100010E
UC Berkeley AIllinois A100010E
UC Berkeley BLSE100010E
UCFWinona State100010E
VanderbiltOhio State100010E
YaleWUSTL B100010E

Summary

TournamentExact Match?HeardPPBEasy %Medium %Hard %
2025 ACF NationalsYes2416.67100%46%21%