swh:1:snp:bbc0b94b1c0463480b615c86f1ae2df3fcc700c0
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Tip revision: 72984f188f682cc270e18126009c8e56b7aab80d authored by Karline Soetaert on 10 August 2011, 00:00 UTC
version 1.3.2
Tip revision: 72984f1
fiadeiro.R

##==============================================================================
## The Fiadeiro and Veronis scheme: advective finite difference weights (AFDW)
##==============================================================================

fiadeiro <- function(v, D, dx.aux=NULL, grid=list(dx.aux=dx.aux)) {

  Pe    <- abs(v)*grid$dx.aux/D
  sigma <- (1+(1/tanh(Pe)-1/Pe))/2
  return(sigma)
}

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