Applied Scientific Instruments Co., Ltd.

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Free and Forced Vortices

หมวดหมู่สินค้า: F SERIES - FLUID MECHANICS
รหัส : F1-23-MKII
This equipment is designed to produce and measure the characteristics of free and forced vortices using a hydraulics bench.

18 เมษายน 2566

ผู้ชม 244 ผู้ชม

DESCRIPTION

The apparatus comprises a clear acrylic cylinder on a plinth designed to produce and measure free and forced vortices.

The free vortex is generated by water discharging through an interchangeable orifice in the base of the cylinder, and the resulting profile is measured using a combined calliper and depth scale. The forced vortex is induced by a paddle in the base of the cylinder, which is rotated by jets of water. The profile of the forced vortex is determined using a series of depth gauges.

Velocity at any point in the free or forced vortices may be measured using the appropriate pitot tube supplied.

Dye crystals (not supplied) may be used to demonstrate secondary flow at the base of the free vortex.

 

EXPERIMENTAL CONTENT

  • Understanding the difference between free and forced vortices
  • Determining the surface profile of a forced vortex
  • Determining the surface profile and total head distribution of a free vortex
  • Visualisation of secondary flow in a free vortex

 

TECHNICAL SPECIFICATIONS

  • Tank diameter: 245mm
  • Height to overflow point: 180mm
  • Orifice diameters: 8, 12, 16 and 24mm

Forced vortex measuring probes

  • Distance from centre: 0, 30, 50, 70, 90 and 110mm
  • Pitot tubes having measuring point (nose) at: 15, 25 and 30mm radius
  • Inlet tubes: 9 and 12.5mm diameter

 

 

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