流體力學實驗室

課程介紹:

 

Drag on a circular cylinder

  • A Wind-tunnel ( speed-variable )
  • One cylinder with a wall-mounted pressure tap
  • A Prandtl-tube ( Pitot-static tube)
  • A manometer

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Thermal anemometry

  • A Hot-wire anemometer
  • A Hot-wire calibrator (TSI, model 1125) with a compressed air source
  • An oscilloscope
  • A multimeter
  • An U-tube manometer
  • A diaphragm manometer

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Air jet flows ( circular and planar )

  • An axisymmetric vertical jet ( Nozzle diameter = 5 mm )
  • An two-dimensional vertical jet ( Exit area = 1 mm x 60 mm )
  • A pitot tube for field velocity measurements
  • A force plate assembly

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Dynamic Similarity

Objectives:
After completion of this experiment and perform the analyses required, you should acquire the following skills:

  1. Understand the basics of pipe flow, pressure distribution along a pipe, and velocity profile at the pipe exit;
  2. Measure pressure via water manometer and pitot static probe (to calculate velocity);
  3. Perform analysis using the Moody diagram;
  4. Fundamentals of the Buckingham Pi Theorem and dimensionless analysis;
  5. Uncertainly analysis.

 
Experimental apparatus:

  1. A blower fan
  2. Pipes
  3. A pitot-static probe
  4. A water manometer
  5. Laptop computer (bring your own)
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