Prandtl–Meyer expansion
E1369942
UNEXPLORED
The Prandtl–Meyer expansion is a compressible-flow phenomenon and corresponding mathematical solution describing how supersonic gases smoothly turn and accelerate around convex corners through a fan of expansion waves.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Prandtl–Meyer expansion canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T19319151 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Prandtl–Meyer expansion Context triple: [Ludwig Prandtl, notableFor, Prandtl–Meyer expansion]
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A.
Mach cone
A Mach cone is the conical shock wave pattern produced by an object traveling through a medium at a speed faster than the speed of sound.
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B.
Callahan flow
Callahan flow is a notable basaltic lava flow associated with Medicine Lake Volcano in northern California, formed during one of its relatively recent volcanic eruptions.
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C.
Joukowski airfoil
The Joukowski airfoil is a mathematically defined airfoil shape derived using conformal mapping, foundational in early aerodynamic theory and airfoil design.
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D.
Kármán vortex street
Kármán vortex street is a repeating pattern of swirling vortices formed when a fluid flows past a bluff body, fundamental in fluid dynamics and aerodynamics.
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E.
Venturi effect
The Venturi effect is a fluid dynamics phenomenon in which a fluid's pressure decreases and its velocity increases as it flows through a constricted section of pipe or channel.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Prandtl–Meyer expansion Target entity description: The Prandtl–Meyer expansion is a compressible-flow phenomenon and corresponding mathematical solution describing how supersonic gases smoothly turn and accelerate around convex corners through a fan of expansion waves.
-
A.
Mach cone
A Mach cone is the conical shock wave pattern produced by an object traveling through a medium at a speed faster than the speed of sound.
-
B.
Callahan flow
Callahan flow is a notable basaltic lava flow associated with Medicine Lake Volcano in northern California, formed during one of its relatively recent volcanic eruptions.
-
C.
Joukowski airfoil
The Joukowski airfoil is a mathematically defined airfoil shape derived using conformal mapping, foundational in early aerodynamic theory and airfoil design.
-
D.
Kármán vortex street
Kármán vortex street is a repeating pattern of swirling vortices formed when a fluid flows past a bluff body, fundamental in fluid dynamics and aerodynamics.
-
E.
Venturi effect
The Venturi effect is a fluid dynamics phenomenon in which a fluid's pressure decreases and its velocity increases as it flows through a constricted section of pipe or channel.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.