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Paul S

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8604 Posts
Member #: 573
Formerly Axel

Podland

I wouldn't go that far Joe, but maybe play with port diameters :)

Anyway, just got back on this.

Corrected trajectory plot for the standard port:


Now flowing 52.3cfm at 25".

Brownie points if you can guess what I'd done wrong.

28mm port:


78cfm at 25".

However, no confidence in the flow numbers until I've accurately depicted the combustion chamber.

Edited by Paul S on 14th Dec, 2012.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Joe C

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Carlos Fandango

Burnham-on-Crouch, Essex

cocked up the divider radius?

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



Paul S

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8604 Posts
Member #: 573
Formerly Axel

Podland


On 12th Dec, 2012 mossy2a said:
What's your residuals like? The pressure spike at the base of the valve could be due to poor meshing or mesh type? I would expect it to elevate but that looks high. Not that I've got anything to back it up with in terms of cylinder head simulations. I'm more Venturi's and pipework.



I can't find anything in Solidworks Flow Simulation that identifies the residuals. I dont think it has the capabilities of dedicated CFD like Ansys or Fluent.

I can reduce the mesh size in certain areas, so the valve seat might get a bit more attntion.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

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