The location downstream of a pipe or valve restriction at which the lowest pressure, and the highest velocity, occurs.
point just after an orifice plate of flow tube where the flow forms its smallest diameter.
Flow contraction with flow separation from the wall, usually occurring after constriction of a flow channel or just downstream of the entry point of an inlet.1
The location where cross-sectional area of the flow stream is at its minimum size, where fluid velocity is at its highest level, and fluid pressure is at its lowest level. (The vena contracta normally occurs just downstream of the actual physical restriction in a regulator.)
in equipment exhaust systems, a point in a duct where the diameter of the air stream is smaller than the diameter of the duct.
The minimum cross section of a jet of fluid discharging from an orifice or over a weir.
The ratio of the area measured at the most contracted section of a jet of liquid issuing from an opening to the area of the opening.
The point of lowest-pressure and highest velocity that's located 0.030-inch below the venturi's throat(minimum diameter). The center of the discharge nozzle or the trailing edge of the booster venturi is placed at the vena contracta.yVentzƒGƒA”²‚«‚ÌEB
The smallest flow area for flow through a sharp-edged orifice.
Vena contracta is point in a fluid stream where the diameter of the stream is the least, such as in the case of a stream issuing out of a nozzle, (orifice). (Evangelista Torricelli, 1643).
