![]() ![]() An illustration of this is water flowing through a pipe. Why does the pressure decrease? Where does the fluid go if the pathway is constricted? When fluid starts to flow, its velocity around the orifice in the pipe increases significantly because of the restriction in the cross-section. This principle is counter intuitive to common sense. Ĭonstricting a pipe where fluid flows through results in lower pressure. The static pressure in the first measuring tube (1) is higher than at the second (2), and the fluid speed at “1” is lower than at “2”, because the cross-sectional area at “1” is greater than at “2”. Compressed air runs through the initial chamber, then a smaller portal that opens into another larger chamber, which is like the first one. A Venturi vacuum is created by a pump with compressed air running through it, yet the pump has no moving parts. In 1797, Giovanni Battista Venturi performed experiments on flow in a cone-shaped tube and built the first flowmeter for closed pipes called the “Venturi tube”. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |