Segré–Silberberg effect
E647522
The Segré–Silberberg effect is a fluid dynamics phenomenon in which particles suspended in laminar flow through a circular tube migrate to stable equilibrium positions at a characteristic radial distance from the tube wall.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Segré–Silberberg effect canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7189171 — 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: Segré–Silberberg effect Context triple: [Saffman lift force, relatedTo, Segré–Silberberg effect]
-
A.
Szilard–Chalmers effect
The Szilard–Chalmers effect is a nuclear chemistry phenomenon in which atoms that undergo neutron capture and become radioactive are chemically separated from their original, non-activated atoms due to recoil-induced disruption of their chemical bonds.
-
B.
Kapitza–Dirac effect
The Kapitza–Dirac effect is a quantum phenomenon in which a beam of particles, such as electrons or atoms, is diffracted by a standing wave of light, demonstrating the wave-particle duality of matter.
-
C.
Cotton–Mouton effect
The Cotton–Mouton effect is a magneto-optical phenomenon in which a transverse magnetic field induces birefringence in an otherwise isotropic medium, causing the polarization of transmitted light to change.
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D.
Rubin–Ford effect
The Rubin–Ford effect is an observed large-scale motion of galaxies relative to the cosmic microwave background that provided early evidence for peculiar velocities and inhomogeneities in the universe’s expansion.
-
E.
Stark effect
The Stark effect is the splitting and shifting of atomic or molecular spectral lines caused by an external electric field.
- 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: Segré–Silberberg effect Target entity description: The Segré–Silberberg effect is a fluid dynamics phenomenon in which particles suspended in laminar flow through a circular tube migrate to stable equilibrium positions at a characteristic radial distance from the tube wall.
-
A.
Szilard–Chalmers effect
The Szilard–Chalmers effect is a nuclear chemistry phenomenon in which atoms that undergo neutron capture and become radioactive are chemically separated from their original, non-activated atoms due to recoil-induced disruption of their chemical bonds.
-
B.
Kapitza–Dirac effect
The Kapitza–Dirac effect is a quantum phenomenon in which a beam of particles, such as electrons or atoms, is diffracted by a standing wave of light, demonstrating the wave-particle duality of matter.
-
C.
Cotton–Mouton effect
The Cotton–Mouton effect is a magneto-optical phenomenon in which a transverse magnetic field induces birefringence in an otherwise isotropic medium, causing the polarization of transmitted light to change.
-
D.
Rubin–Ford effect
The Rubin–Ford effect is an observed large-scale motion of galaxies relative to the cosmic microwave background that provided early evidence for peculiar velocities and inhomogeneities in the universe’s expansion.
-
E.
Stark effect
The Stark effect is the splitting and shifting of atomic or molecular spectral lines caused by an external electric field.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
fluid dynamics phenomenon
ⓘ
inertial migration phenomenon ⓘ |
| appliesTo |
flow in circular tubes
ⓘ
laminar flow ⓘ pressure-driven pipe flow ⓘ |
| assumes | laminar flow regime ⓘ |
| causes | radial migration of particles ⓘ |
| characteristicFeature | equilibrium positions at a characteristic radial distance from tube wall ⓘ |
| contrastsWith | uniform particle distribution expected in Stokes flow ⓘ |
| dependsOn |
channel Reynolds number
ⓘ
flow velocity profile ⓘ fluid viscosity ⓘ particle Reynolds number ⓘ particle size relative to tube diameter ⓘ |
| doesNotOccurIn | creeping flow limit ⓘ |
| equilibriumCondition | net lateral force on particle equals zero ⓘ |
| field |
fluid dynamics
ⓘ
suspension mechanics ⓘ |
| firstReportedIn | 1961 ⓘ |
| flowCondition | moderate Reynolds number ⓘ |
| governingForces |
hydrodynamic lift forces
ⓘ
viscous drag forces ⓘ |
| influences | particle distribution across pipe cross-section ⓘ |
| involves |
finite Reynolds number flows
ⓘ
neutrally buoyant particles ⓘ suspended particles ⓘ |
| mechanism |
balance of inertial lift forces
ⓘ
interaction of shear-induced lift and wall-induced lift ⓘ |
| namedAfter |
A. Silberberg
NERFINISHED
ⓘ
G. Segré NERFINISHED ⓘ |
| notableFor | formation of discrete particle focusing rings ⓘ |
| observedIn |
rigid particles
ⓘ
spherical particles in water flow ⓘ |
| occursIn | Poiseuille flow NERFINISHED ⓘ |
| relatedTo |
inertial focusing
ⓘ
tubular pinch effect NERFINISHED ⓘ |
| requires |
nonzero fluid inertia
ⓘ
sufficient residence time for migration ⓘ |
| resultsIn | stable equilibrium positions of particles ⓘ |
| scale | occurs in both macro-scale pipes and microchannels ⓘ |
| typicalEquilibriumLocation |
about 0.6 times tube radius from centerline
ⓘ
annulus between tube center and wall ⓘ |
| usedIn |
cell sorting in microchannels
ⓘ
inertial microfluidics ⓘ particle focusing ⓘ particle separation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Segré–Silberberg effect Description of subject: The Segré–Silberberg effect is a fluid dynamics phenomenon in which particles suspended in laminar flow through a circular tube migrate to stable equilibrium positions at a characteristic radial distance from the tube wall.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.