Gasoline flows through a 2 ×1 in. venturi meter. The differential pressure is 380 mm of mercury.

step 1 Given diameter of inlet d d1 is equal to 2 inch is equal to 0 .0508 meter and the diameter of th

Gasoline flows through a 2 ×1 in. venturi meter. The...

Key Concepts

Differential Pressure Measurement

Differential pressure measurement involves determining the difference in pressure between two points in a fluid system, often across a constriction or orifice. This pressure difference is directly related to changes in fluid velocity and is crucial for calculating flow rates using instruments like Venturi meters.

Venturi Meter

A Venturi meter is a device used to measure the flow rate of a fluid by taking advantage of the relationship between the fluid's velocity and pressure as it passes through a constricted section of a pipe. The reduction in cross-sectional area increases the velocity of the fluid and causes a corresponding drop in pressure, which can be measured and related to the flow rate.

Bernoulli's Principle

Bernoulli's Principle relates the pressure, velocity, and height in a flowing fluid, stating that the sum of the static pressure, dynamic pressure, and gravitational potential energy per unit volume remains constant along a streamline. This principle is fundamental in understanding how pressure differences in a Venturi meter can be used to calculate fluid flow rates.

Volumetric Flow Rate

Volumetric flow rate is a measure of the volume of fluid passing through a given cross-sectional area per unit time. It can be determined by combining differential pressure measurements with the cross-sectional areas at different points in a flow system, using principles derived from the continuity equation and Bernoulli's Principle.

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