Electrohydrodynamics (EHD)

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johnny comelately
johnny comelately
110
Joined: 10 Apr 2015, 00:55
Location: Australia

Electrohydrodynamics (EHD)

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Could Electrohydrodynamics (EHD) have caused Alonso's testing crash in Barcelona?

Robbobnob
Robbobnob
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Joined: 21 May 2010, 04:03
Location: Auckland, New Zealand

Re: Electrohydrodynamics (EHD)

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In what regards? fluid movement inside the energy pack causing a surge?

I do not have a in-depth understanding of the battery technologies deployed by F1 teams, however i imagine they are similar to a commercial car battery as in they are comprised of multiple cells in both parallel and series to provide the provided energy storage. I also assume they have a cooling system, either a wet jacket or a copper jacket to help with heat rejection.
Note, there will be some major differences, most noteably the saftey margin for acceptable SOC (state of charge) temperature allowances etc for the super prototypes that the F1 teams use.

Image

This multiple cell technique will have its advantages and prevent mass inertia movements from causing lots of fluid movement inside the cells, similar to the way that baffles in the fuel tank also help prevent inertial mass movements.

However, If the coolant fluid used in the battery is electrolytic in any way, that could have had a unforseen effect?
"I continuously go further and further learning about my own limitations, my body limitations, psychological limitations. It's a way of life for me." - Ayrton Senna

johnny comelately
johnny comelately
110
Joined: 10 Apr 2015, 00:55
Location: Australia

Re: Electrohydrodynamics (EHD)

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Robbo, no, i was thinking aero influence maybe on the surface boundary layer for drag reduction or inducing certain airstreams

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godlameroso
309
Joined: 16 Jan 2010, 21:27
Location: Miami FL

Re: Electrohydrodynamics (EHD)

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I don't think anyone is doing that...yet.
Saishū kōnā

Robbobnob
Robbobnob
33
Joined: 21 May 2010, 04:03
Location: Auckland, New Zealand

Re: Electrohydrodynamics (EHD)

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Like using a high voltage device to trip the boundary layer over sidepods and or wing elements?

I remember back in 2011/12 during the flexi-wing debate, the presence of wiring from the nose cone into the wing sections had some people had suggested that it could be providing a voltage to sensitive materials called electro-active polymers used in the construction of the carbon layup which helped alter the material stiffness under certain (hi-)voltages.

This was more conspiracy and / or science fiction, however I still think it would be cool to see organically moving wing elements, adjusting their attitude akin to how a Kite Boarder's kite twists and contorts to change the vectoring of its pull and move though the sky.
"I continuously go further and further learning about my own limitations, my body limitations, psychological limitations. It's a way of life for me." - Ayrton Senna

johnny comelately
johnny comelately
110
Joined: 10 Apr 2015, 00:55
Location: Australia

Re: Electrohydrodynamics (EHD)

Post

Robbobnob wrote:Like using a high voltage device to trip the boundary layer over sidepods and or wing elements?

I remember back in 2011/12 during the flexi-wing debate, the presence of wiring from the nose cone into the wing sections had some people had suggested that it could be providing a voltage to sensitive materials called electro-active polymers used in the construction of the carbon layup which helped alter the material stiffness under certain (hi-)voltages.

This was more conspiracy and / or science fiction, however I still think it would be cool to see organically moving wing elements, adjusting their attitude akin to how a Kite Boarder's kite twists and contorts to change the vectoring of its pull and move though the sky.
fascinating Robbo