is, in airflow terms, a constriction
of an air passage designed to increase the air flow speed and hence reduce the air pressure. A prime example is the carburetor
, which contains a venturi designed to pull fuel
into the airflow by reducing the pressure in the venturi throat
. This can lead to a carburetor icing
up in above-freezing ambient temperature
s, since by lowering the pressure the venturi also lowers the temperature of the passing air. Most aircraft carbureted
engines tend to have carburetor heating devices designed specifically to prevent this.
Venturi nozzles are exhaust or ejecta ports designed to increase the speed of the outflow through constricting the flow path. Some pressure washer nozzles have this characteristic.
This is also the last name of a modern architect who inflicted much pale wood and curvilinearity on the Princeton University campus.