Mercurial > repos > public > sbplib_julia
changeset 1096:9f0121e465a5 feature/dissipation_operators
Docs for undivided_dissipation
| author | Jonatan Werpers <jonatan@werpers.com> |
|---|---|
| date | Tue, 10 May 2022 21:10:31 +0200 |
| parents | 2be39d485221 |
| children | 95464a1af340 |
| files | src/SbpOperators/volumeops/derivatives/dissipation.jl |
| diffstat | 1 files changed, 8 insertions(+), 1 deletions(-) [+] |
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--- a/src/SbpOperators/volumeops/derivatives/dissipation.jl Tue May 10 20:49:44 2022 +0200 +++ b/src/SbpOperators/volumeops/derivatives/dissipation.jl Tue May 10 21:10:31 2022 +0200 @@ -1,9 +1,16 @@ -# REVIEW: Add documentation. Also would it be more correct to +# REVIEW: Would it be more correct to # call these undivided_differences instead of dissipation? # If I understand it correctly, this method simply provides # the operators required in order to compose a dissipation operator # and the dissipation operator are formed by a linear combination # of the products of Dᵀ and D for different orders. +""" + undivided_dissipation(g::EquidistantGrid, p, direction) + +Create undivided difference operators approximating the `p`th derivative for +building artificial dissipation. The operators and how they are used to create accurate artifical dissipation is described in +"K. Mattsson, M. Svärd, and J. Nordström, “Stable and Accurate Artificial Dissipation,” Journal of Scientific Computing, vol. 21, no. 1, pp. 57–79, Aug. 2004" +""" function undivided_dissipation(g::EquidistantGrid, p, direction) T = eltype(g) interior_weights = T.(dissipation_interior_weights(p))