HydrogenBubbleWire - -+---+ + + + + + + + + e H g O O H OH...

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Purdue University - School of Aeronautics and Astronautics AAE 520 Experimental Aerodynamics V=0 to 100 volts I = 0 to .5 amp Electrode (somewhere in flow tank) Bubble Wire (~.001” dia.) Tungsten – high strength Steel – stainless does not corrode Aluminum - weak Frame Electrolysis of Water Forms Hydrogen Bubbles on Small Diameter Wire Water must be conductive Hard water (Lafayette) is conductive but calcium deposits on wire Can add Sodium Sulfate to adjust the conductivity Lighting is Critical – Forward Scatter when possible Hydrogen Bubble Wire AAE 333L Fluid Mechanics Laboratory
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Purdue University - School of Aeronautics and Astronautics AAE 520 Experimental Aerodynamics
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Unformatted text preview: -+---+ + + + + + + + + e H g O O H OH g H O H e g O g H O H OH H g O g H O H 2 4 ) ( 2 Electrode) (Positive Anode 2 ) ( 2 2 Electrode) (Negative Cathode ) ( ) ( 2 2 4 4 ) ( ) ( 2 6 Water of is Electrolys 2 2 2 2 2 2 2 2 2 2 Can form either Hydrogen or Oxygen Bubbles Hydrogen Bubbles smaller less buoyant harder to see Oxygen Bubbles larger more buoyant easier to see Hydrogen Bubble Method AAE 333L Fluid Mechanics Laboratory Purdue University - School of Aeronautics and Astronautics AAE 520 Experimental Aerodynamics Pulse Wire Measure Velocity AAE 333L Fluid Mechanics Laboratory...
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This note was uploaded on 02/10/2012 for the course AAE 333L taught by Professor Sally during the Fall '11 term at Purdue University-West Lafayette.

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HydrogenBubbleWire - -+---+ + + + + + + + + e H g O O H OH...

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