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May 15, 2014, 10:12
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vanalbada limiter
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#1 |
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Member
Join Date: Feb 2014
Posts: 32
Rep Power: 12  |
Hi Foamers.
Does anybody know why the vanAlbada limiter (src/finiteVolume / interpolation / surfaceInterpolation / limitedSchemes / vanAlbada/vanAlbada.H) isimplemented as : r*(r + 1)/(sqr(r) + 1) Where the van albada limiter is actually, r*(r + 1)/(r**2 + 1) (see for example wikipedia or Berger and Aftosmis, nalysis of Slope Limiters on Irregular Grids). Another troubling aspect is that the OF implementation does not fulfill Sweby conditions for limiters. The limiter is greater than 2 when r is greater then ~ 1.7. |
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May 15, 2014, 10:19
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#2 |
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Senior Member
Alexey Matveichev
Join Date: Aug 2011
Location: Nancy, France
Posts: 1,938
Rep Power: 39  |
Hi,
sqr(r) == r**2 (square root is sqrt in C) Last edited by alexeym; May 15, 2014 at 10:43. Reason: typo |
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May 15, 2014, 10:21
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#3 |
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Member
Join Date: Feb 2014
Posts: 32
Rep Power: 12 |
oh my mistake I thought it is square root...
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