Design and Development of A Water Tunnel

1
Design and Development of A Water Tunnel

• Week 2

Jennifer Panik
2
Presentation Outline

• Designs
• Orientations
• Dye Technique
• Hydrogen Bubble Technique

3
Water Channel Designs

• Large
• Small

Source http//www.sm.go.dlr.de/sm-sm_info/TRTinfo
/wuk.html
Source http//www.armfield.co.uk/f14_datasheet.ht
ml
4
Water Tunnel Orientation

• Vertical
• Horizontal

Source http//rollinghillsresearch.com/Water_Tunn
els/Model_0710.html
Source http//www.dfrc.nasa.gov/Gallery/Photo/Pla
ces/Small/ED96-43468-4.jpg
5
Dye technique Visualization
Source http//www.dfrc.nasa.gov/Gallery/Photo/FVF
/index.html
1/48-scale model of an F-18 aircraft
1/48-scale model of an F-18 aircraft
6
Vortex street at the back of a circular
cylinder.(Reynolds number 138)
Source http//www.onera.fr/photos-en/tunnel/von-k
arman.html
Source http//rollinghillsresearch.com/Water_Tunn
els/Prepared_experiments.htm
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Hydrogen Bubble Visualization
Source http//www.onera.fr/photos-en/tunnel/avion
-ecoulement.html
Model of the future supersonic transport aircraft
(ATSF) in the water-tunnel.Visualization of the
flow thanks to air bubbles.
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The fully turbulent flow in a pipe visualized
using the hydrogen bubble method.
Source http//www.flometrics.com/services/hydbub/
hydbub.htm
9
Next Week

• More Background
• Reynolds number calculations

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Questions?
?