Changeset 1498 for palm/trunk/SOURCE/flow_statistics.f90
 Timestamp:
 Dec 3, 2014 2:09:51 PM (8 years ago)
 File:

 1 edited
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palm/trunk/SOURCE/flow_statistics.f90
r1483 r1498 21 21 ! Current revisions: 22 22 !  23 ! 23 ! Comments added 24 24 ! 25 25 ! Former revisions: … … 219 219 220 220 ! 221 ! When calcuating horizontallyaveraged total (resolved plus subgrid 222 ! scale) vertical fluxes and velocity variances by using commonly 223 ! applied Reynoldsbased 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. 221 233 ! 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. 223 235 IF ( ws_scheme_mom .AND. sr == 0 ) THEN 224 236 … … 1517 1529 1518 1530 ! 1531 ! When calcuating horizontallyaveraged total (resolved plus subgrid 1532 ! scale) vertical fluxes and velocity variances by using commonly 1533 ! applied Reynoldsbased 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. 1519 1543 ! 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. 1521 1545 IF ( ws_scheme_mom .AND. sr == 0 ) THEN 1522 1546
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