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pressure term in NS eqn

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Old   August 13, 2005, 21:02
Default pressure term in NS eqn
  #1
zonexo
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hello,

i would like to verify something:

for a FVM(3D),

is del(p)/del(x) same as (after integrating & approx)

[summation of faces(p(face) * nx * area]/Vol

where p(face) is the interpolated pressure at face nx = outward unit normal vector

I've got this derivation for cartisian coordinates, & i'm wondering if it can be applied to structured grids as well.

hope someone can advise.

Thanks
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Old   August 13, 2005, 21:13
Default Re: pressure term in NS eqn
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zonexo
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or put it simply,

I need to evaluate u(*)=u+ (delta_t)*[del(p)/del(x)] in a structured grid.

For a FVM cell,

how should I evaluate del(p)/del(x)?

Thanks!

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