“Pitot tube”的概念、定义、翻译、参考文献-科学参考

Pitot tube

Physics

A device for measuring the speed of a fluid. It consists of two tubes, one with an opening facing the moving fluid and the other with an opening at 90° to the direction of the flow. The two tubes are connected to the opposite sides of a manometer so that the difference between the dynamic pressure in the first tube and the static pressure in the second tube can be measured. The speed v of the flow of an incompressible fluid is then given by: v²=2(P₂ − P₁)/ρ‎, where P₂ is the dynamic pressure, P₁ is the static pressure, and ρ‎ is the density of the fluid. The device has a wide variety of applications. It was devised by the Italian-born French engineer Henri Pitot (1695–1771).

Chemical Engineering

An instrument used to measure the velocity of a flowing fluid by measuring the difference between the impact pressure and static pressure in the fluid. The device normally consists of two concentric tubes arranged in parallel; one with a face directed towards the flow to measure the impact pressure, the other face perpendicular to the flow to measure the static pressure. By taking a number of readings at various points in the cross section of a pipe or duct, known as a Pitot traverse, the overall rate of flow can be determined. As with all flow measurement devices, Pitot tubes should ideally be located away from disturbances such as bends. The device was devised by Italian-born French engineer Henri de Pitot (1695–1771).

单词	Pitot tube
释义	Pitot tube Physics A device for measuring the speed of a fluid. It consists of two tubes, one with an opening facing the moving fluid and the other with an opening at 90° to the direction of the flow. The two tubes are connected to the opposite sides of a manometer so that the difference between the dynamic pressure in the first tube and the static pressure in the second tube can be measured. The speed v of the flow of an incompressible fluid is then given by: v²=2(P₂ − P₁)/ρ‎, where P₂ is the dynamic pressure, P₁ is the static pressure, and ρ‎ is the density of the fluid. The device has a wide variety of applications. It was devised by the Italian-born French engineer Henri Pitot (1695–1771). Chemical Engineering An instrument used to measure the velocity of a flowing fluid by measuring the difference between the impact pressure and static pressure in the fluid. The device normally consists of two concentric tubes arranged in parallel; one with a face directed towards the flow to measure the impact pressure, the other face perpendicular to the flow to measure the static pressure. By taking a number of readings at various points in the cross section of a pipe or duct, known as a Pitot traverse, the overall rate of flow can be determined. As with all flow measurement devices, Pitot tubes should ideally be located away from disturbances such as bends. The device was devised by Italian-born French engineer Henri de Pitot (1695–1771).
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