Fluid dynamics

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Fluid dynamics

Postby simontaylor » Wed Jun 09, 2010 10:39 pm

Anyone here an expert or have a degree in the subject?

I am wishing to understand how effective a sworl pot is, how it seperates bubbles from fluid and the effectiveness of then being drwn into the centre of the vortex for expulson from the fluid?
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Hmmm

Postby Tony Smith » Thu Jun 10, 2010 4:08 pm

Get a F**king life man!!!
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Postby MFaulks » Thu Jun 10, 2010 4:38 pm

I had some stuff on this, will have a look, believe some SAE articles on it. Had a chap at work doing CFD analysis will ask. However, can't you do it practically, and just monitor rad and engine temps in and out, and test with a pot and without - simply is there any change or nowt taken out?
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Postby Stunned Monkey » Fri Jun 11, 2010 6:57 pm

Similar principle to a static fluid with bubbles in, the bubbles rise to the top because they're less dense. Make a fluid spin and any gas will move to the centre and the fluid to the outside. How fast it spins will dictate how effective this is - think of it being like G-force. In a static container, the G force is 1 straight down. Spin it fast enough and your fluid will experience multiple G radially.
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Postby simonsays74 » Fri Jun 11, 2010 7:09 pm

Stunned Monkey wrote:Similar principle to a static fluid with bubbles in, the bubbles rise to the top because they're less dense. Make a fluid spin and any gas will move to the centre and the fluid to the outside. How fast it spins will dictate how effective this is - think of it being like G-force. In a static container, the G force is 1 straight down. Spin it fast enough and your fluid will experience multiple G radially.


Boy, I'm I glad I read that $hite! :lol:
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Postby MFaulks » Sat Jun 12, 2010 8:43 am

Stunned Monkey wrote:Similar principle to a static fluid with bubbles in, the bubbles rise to the top because they're less dense. Make a fluid spin and any gas will move to the centre and the fluid to the outside. How fast it spins will dictate how effective this is - think of it being like G-force. In a static container, the G force is 1 straight down. Spin it fast enough and your fluid will experience multiple G radially.


centripetal force - get it right, thought you were doing a degree??? :lol:

bubbles get squeezed out, and the water will naturally form a vortex, with offset flow, and especially disappearing down an 'ole... I'm sure you were good at playing in the bath when you were young :wink:
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Good question

Postby Miles » Sat Jun 12, 2010 9:17 am

Good question Simon and one that needs answering,
i'm sure the swirl pot puts air in.
Seems strange how i always have to bleed my system with no loss of fluid.
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Postby simontaylor » Mon Jun 14, 2010 10:08 pm

Martin, and as we live, and drive, in the Northern Hemisphere, which direction does the water need to swirl so that we get the best effect of seperation etc?
1986 : '86 GTA v6 BW-EFR turbo, with Adaptronic ECU
Firsts at
2007 : Gurston Down & RAOC Champion
2008 : Rushmoor & Eelmoor & ACSMC Hillclimb class Champion
2009 : Longcross & Eelmoor
2010 : Crystal Palace & Eelmoor
2016 : Rushmoor & 5th O/A


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