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Tip revision: e1145574dc02ebe9e0d96419755e4702aef85172 authored by Karline Soetaert on 16 September 2010, 00:00 UTC
version 1.3
Tip revision: e114557
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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