Venturi effect
E1014091
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Venturi effect canonical | 1 |
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
fluid dynamics phenomenon
ⓘ
physical effect ⓘ |
| appliesTo |
gases
ⓘ
liquids ⓘ single-phase flow ⓘ |
| assumes |
non-viscous flow in idealized form
ⓘ
steady flow for basic derivation ⓘ |
| basedOn | Bernoulli principle NERFINISHED ⓘ |
| canBeObservedIn |
airflow through building openings
ⓘ
natural flows in river narrows ⓘ wind tunnels with constricted test sections ⓘ |
| cause | conversion of fluid pressure energy into kinetic energy ⓘ |
| consequence |
local drop in static pressure at the throat of a constriction
ⓘ
potential for cavitation if pressure falls below vapor pressure ⓘ |
| describes |
pressure decrease in a fluid flowing through a constriction
ⓘ
velocity increase in a fluid flowing through a constriction ⓘ |
| field |
fluid dynamics
ⓘ
hydrodynamics ⓘ |
| hasComponent |
downstream diffuser section
ⓘ
throat ⓘ upstream section ⓘ |
| implies | static pressure is lower where flow speed is higher in a constriction ⓘ |
| influencedBy |
Reynolds number
NERFINISHED
ⓘ
cross-sectional area ratio ⓘ flow rate ⓘ fluid density ⓘ |
| namedAfter | Giovanni Battista Venturi NERFINISHED ⓘ |
| occursIn |
channel
ⓘ
duct ⓘ pipe ⓘ |
| relatedTo |
Bernoulli equation
NERFINISHED
ⓘ
continuity equation ⓘ pressure-velocity tradeoff in fluids ⓘ |
| requires |
continuity of mass flow
ⓘ
incompressible flow approximation for simple analysis ⓘ |
| usedFor |
aeration in water treatment
ⓘ
chemical dosing in irrigation systems ⓘ creating suction without moving mechanical parts ⓘ inducing secondary fluid flow ⓘ measuring fluid flow rate ⓘ |
| usedIn |
Venturi meter
NERFINISHED
ⓘ
aircraft pitot-static systems ⓘ aspirator ⓘ atomizer ⓘ carburetor ⓘ flow measurement devices ⓘ gas burners ⓘ medical oxygen delivery devices ⓘ mixing of fuel and air in internal combustion engines ⓘ vacuum pump ejectors ⓘ venturi scrubber pollution control devices ⓘ water aspirator laboratory equipment ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Giovanni Battista Venturi