# If ANSYS can deal with electriferous fluid ?

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 June 2, 2006, 06:22 If ANSYS can deal with electriferous fluid ? #1 white Guest   Posts: n/a I want to simulate electriferous fluid moving in the electric field.But I can not find the attribute of electriferous fluid!anybody can help me?how to deal with this problem?

 June 2, 2006, 07:05 Re: If ANSYS can deal with electriferous fluid ? #2 Joe Guest   Posts: n/a I have no idea what an electriferous fluid is and a quick google didnt help much either. Provide a link to a description of it and I will comment on whether it can be moddeled in CFX. Generally, CFX can model most types of continuum fluids ...

 June 3, 2006, 00:32 Re: If ANSYS can deal with electriferous fluid ? #3 white Guest   Posts: n/a It is known that most solid surfaces obtain an instantaneous electrical charge when in contact with an ionic solution.For example, fused silica that is used commonly in the manufacturing of microchannels becomes negatively charged when it is in contact with an aqueous solution. Such a negatively charged surface will attract the positively charged ions (cations) of the solution. When an external electric field is applied on this system, the thin layer of cation-rich fluid adjacent to the solid surfaces will begin moving towards the cathode. This boundary layer-like motion will eventually set the bulk liquid into motion through viscous interaction. my question is how to simulate this process?thank you!

 June 3, 2006, 23:37 If ANSYS can deal with this problem? #4 white Guest   Posts: n/a It is known that most solid surfaces obtain an instantaneous electrical charge when in contact with an ionic solution.For example, fused silica that is used commonly in the manufacturing of microchannels becomes negatively charged when it is in contact with an aqueous solution. Such a negatively charged surface will attract the positively charged ions (cations) of the solution. When an external electric field is applied on this system, the thin layer of cation-rich fluid adjacent to the solid surfaces will begin moving towards the cathode. This boundary layer-like motion will eventually set the bulk liquid into motion through viscous interaction. my question is how to simulate this process?thank you!

 June 5, 2006, 07:53 Re: If ANSYS can deal with this problem? #5 Stuart Guest   Posts: n/a CFX, like most CFD software has a fortran user interface, which will allow an advanced user to define conditions that can be applied to the fluid. So whilst there is no specific fluid of that type (electriferous) you may be able to simulate the effect upon a fluid by applying fortran defined exressions ???

 June 5, 2006, 11:46 Re: If ANSYS can deal with this problem? #7 Robin Guest   Posts: n/a Hi "white", There is a beta Electro-Magnetic capability in CFX that allows you to solve Maxwell's equations. Fluid properties, momentum sources, etc. can then be modified/created based on this field. The details are beyond the scope of this forum and involves beta capability, so I recommend contacting your CFX representative for further details. Regards, Robin

 June 6, 2006, 01:47 Re: If ANSYS can deal with this problem? #8 white Guest   Posts: n/a thank you all very much, I will accept your advise and try it.

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