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avoiding inclined plate?

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Old   March 2, 2005, 12:00
Default avoiding inclined plate?
  #1
mony
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Hello everyone,

I was just wondering if it is possible to give flow a vertical component as it passes through a portion of the domain. I want to model the flow of air past an inclined baffle but don't want the hassle of inclined thinplate, parsol and tons of cells. Is it possible? thank you
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Old   March 10, 2005, 18:44
Default Re: avoiding inclined plate?
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Kevin McManus
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hi mony,

>>if it is possible to give flow a vertical component as it passes through a portion of the domain.

Apologies if I'm well off the mark here, but if you want to 'give' the flow a velocity over this region, then I'm assuming that you either know the theoretical velocity or aren't to worried about the accuracy. In which case my thoughts are.

(Why don't you wish to use a plate, does it not work? and I am not sure that you need loads of cells to get this type of object represented well with parsol. But anyway.........)

1/ you could fix the vertical velocity using patches to define the relevent cells and fixval coefficients to fix the vertical velocity. Or perhaps do the same thing through fan type objects using the menu.

2/ Or you could put a momentum source for the Y-component velocity although the above would probably be better as you would get contol of the velocity.

3/ Or you could switch parsol off and use a blocked thin object which is inclined which will be expressed like stairs with solid properties. Obviously the more cells the less the step effect.

4/ Or perhaps you could select your baffle area with a patch and set porosities in the other two directions to block the flow so that it can only flow vertically.

I hope this helps
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