Venturiputkens

Venturiputkens, often referred to as a Venturi tube, is a pipe or duct that constricts in the middle, creating a narrower section. This design is based on the Venturi effect, a principle in fluid dynamics that describes the reduction in fluid pressure that results when a fluid flows through a constricted section of a pipe. The effect was first observed by Giovanni Battista Venturi in the late 18th century.

As a fluid passes through the Venturi tube, its velocity increases in the constricted section, and its pressure decreases. This phenomenon is a direct consequence of the conservation of mass and Bernoulli's principle. Bernoulli's principle states that for an inviscid flow, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.

Venturiputkens have various practical applications. They are commonly used in flow meters to measure the flow rate of liquids or gases. By measuring the pressure difference between the wider and narrower sections, the flow velocity and subsequently the flow rate can be calculated. Other applications include carburetors in internal combustion engines, where the Venturi effect draws fuel into the airflow, and aspirators, which use the reduced pressure to create a vacuum. They are also utilized in some types of sprayers and in industrial processes where precise flow control is necessary. The simplicity of their design and their effectiveness in manipulating fluid pressure and velocity make them a versatile engineering component.