Looks like you made an error in the rearranging. I'm not sure, but it appears that you assumed that ##\sqrt{U_2^2 - U_1^2} = U_2 - U_1##pressurised said:
How can you express A1 in terms of A2 and the diameters D1 and D2?
TSny said:
Yes. But you might want to rearrange for U1. Depends on how you are doing the algebra to get to the result.pressurised said:
TSny said:
A Venturi meter is a device used to measure the pressure difference between two points in a fluid flow. It consists of a constriction in the fluid flow path, which causes the fluid to speed up and the pressure to decrease. This pressure difference can then be measured using a manometer or pressure gauge.
Venturi meters are commonly used in fluid mechanics to measure the flow rate and pressure difference in pipes and channels. They are also used in industries such as water treatment, oil and gas, and air conditioning systems.
The accuracy of a Venturi meter depends on various factors such as the design, size, and fluid properties. Generally, they have a high degree of accuracy, with an error margin of less than 1%.
No, a Venturi meter is designed to measure the pressure difference in a specific type of fluid. It is important to consider the fluid properties, such as density and viscosity, before using a Venturi meter.
The pressure difference can be calculated using the Bernoulli's equation, which states that the sum of pressure, kinetic energy, and potential energy at any point in a fluid flow is constant. By measuring the fluid velocity at the constriction and the inlet, the pressure difference can be calculated using this equation.