Statements (27)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
physical phenomenon
|
| gptkbp:appliesTo |
Newtonian fluids
cylindrical pipes |
| gptkbp:assumes |
incompressible fluid
steady flow no-slip boundary condition rigid pipe walls |
| gptkbp:describes |
laminar flow of incompressible fluids in a pipe
|
| gptkbp:field |
fluid dynamics
|
| gptkbp:form |
Q = (π ΔP r^4) / (8 η L)
|
| https://www.w3.org/2000/01/rdf-schema#label |
Hagen–Poiseuille equation
|
| gptkbp:namedAfter |
gptkb:Gotthilf_Hagen
gptkb:Jean_Léonard_Marie_Poiseuille |
| gptkbp:publishedIn |
19th century
|
| gptkbp:relatedTo |
gptkb:Poiseuille's_law
gptkb:Reynolds_number viscosity |
| gptkbp:usedIn |
gptkb:medicine
biology engineering |
| gptkbp:variant |
η (dynamic viscosity)
ΔP (pressure difference) Q (volumetric flow rate) L (pipe length) r (pipe radius) |
| gptkbp:bfsParent |
gptkb:Poiseuille's_law
|
| gptkbp:bfsLayer |
5
|