AF15 - Experiment

FLOW ROUND A BEND

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An experimental module for use with the AF10 Air Flow Bench to investigate the radial pressure distribution around a bend and the pressure distribution along the curved inner and outer walls of the bend.

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FLOW ROUND A BEND

This module consists of a smooth rectangular bend with ten static tapping points on both the inner and outer curved walls, plus a further nine along the radius. Each one of the tapping points has a flexible tube with quick-release connector for connection to the AF10a Multi-tube Manometer (ancillary).

When air passes through the bend it creates areas of high and low pressure. The resulting pressure plots on the multi-tube manometer are highly visual which enhances student understanding. The readings allow the students to plot the pressure profile and calculate a value for the loss coefficient K.

  • Pressure distribution along the curved inner and outer walls.
  • Radial pressure distribution and comparison with that predicted assuming free vortex velocity distribution.
  • Calculation of loss coefficient (K).

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