Ignore:
Timestamp:
Dec 3, 2014 2:09:51 PM (7 years ago)
Author:
suehring
Message:

Comments added

File:
1 edited

Legend:

Unmodified
Added
Removed
  • palm/trunk/SOURCE/flow_statistics.f90

    r1483 r1498  
    2121! Current revisions:
    2222! -----------------
    23 !
     23! Comments added
    2424!
    2525! Former revisions:
     
    219219
    220220!
     221!--    When calcuating horizontally-averaged total (resolved- plus subgrid-
     222!--    scale) vertical fluxes and velocity variances by using commonly-
     223!--    applied Reynolds-based methods ( e.g. <w'pt'> = (w-<w>)*(pt-<pt>) )
     224!--    in combination with the 5th order advection scheme, pronounced
     225!--    artificial kinks could be observed in the vertical profiles near the
     226!--    surface. Please note: these kinks were not related to the model truth,
     227!--    i.e. these kinks are just related to an evaluation problem.   
     228!--    In order avoid these kinks, vertical fluxes and horizontal as well
     229!--    vertical velocity variances are calculated directly within the advection
     230!--    routines, according to the numerical discretization, to evaluate the
     231!--    statistical quantities as they will appear within the prognostic
     232!--    equations.
    221233!--    Copy the turbulent quantities, evaluated in the advection routines to
    222 !--    the local array sums_l() for further computations
     234!--    the local array sums_l() for further computations.
    223235       IF ( ws_scheme_mom .AND. sr == 0 )  THEN
    224236
     
    15171529
    15181530!
     1531!--    When calcuating horizontally-averaged total (resolved- plus subgrid-
     1532!--    scale) vertical fluxes and velocity variances by using commonly-
     1533!--    applied Reynolds-based methods ( e.g. <w'pt'> = (w-<w>)*(pt-<pt>) )
     1534!--    in combination with the 5th order advection scheme, pronounced
     1535!--    artificial kinks could be observed in the vertical profiles near the
     1536!--    surface. Please note: these kinks were not related to the model truth,
     1537!--    i.e. these kinks are just related to an evaluation problem.   
     1538!--    In order avoid these kinks, vertical fluxes and horizontal as well
     1539!--    vertical velocity variances are calculated directly within the advection
     1540!--    routines, according to the numerical discretization, to evaluate the
     1541!--    statistical quantities as they will appear within the prognostic
     1542!--    equations.
    15191543!--    Copy the turbulent quantities, evaluated in the advection routines to
    1520 !--    the local array sums_l() for further computations
     1544!--    the local array sums_l() for further computations.
    15211545       IF ( ws_scheme_mom .AND. sr == 0 )  THEN
    15221546
Note: See TracChangeset for help on using the changeset viewer.