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Electrohydroconvection Engine?

  1. Feb 22, 2012 #1
    Imagine you had a torodial tank filled with a (super)conductive fluid that was flowing around the tank in a clock-wise direction. Could the minute differences in speeds between the liquid flowing on the inside of the torus and those on the outside -slowed due to friction - create an electric charge differential in the fluid? Basically what kind of liquid could produce this kind of electrokinetic charge? And does something like this already exist.
  2. jcsd
  3. Feb 22, 2012 #2


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    cynopolis, Will you please help me understand your word-experiment by giving a more detailed description? I have these questions:

    1. Is electrokinetics defined as an electrically driven fluid flow and particle motion in liquid electrolytes? What drives the clockwise motion?

    2. The torroidal tank is filled with a fluid. Is that a conductive fluid or super-conductive fluid? Are there colloidal particles in the fluid? Please describe more specifically the fluid’s characteristics.

    3. Why do you not mention the friction between the rotating fluid and the top
    side, bottom side, and the outside of the torus? I imagine that the greatest velocity of fluid would be in the center, away from all of the walls.

    4. Is there any connection between your experiment and the Zeta potential? This is defined by Wiki as “a scientific term for electrokinetic potential in colloidal systems. In the colloidal chemistry literature, it is usually denoted using the Greek letter zeta, hence ζ-potential. From a theoretical viewpoint, zeta potential is electric potential in the interfacial double layer (DL) at the location of the slipping plane versus a point in the bulk fluid away from the interface. In other words, zeta potential is the potential difference between the dispersion medium and the stationary layer of fluid attached to the dispersed particle.”

    5. Is there any connection between your experiment and the Aharonov-Bohm effect?

    6. Is there any connection between your experiment and electro-osmotic and electrophoretic effects?

    Thanks in advance, Bobbywhy
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