Changes between Version 421 and Version 422 of doc/app/initialization_parameters

Timestamp:

Jul 9, 2019 5:35:44 PM (6 years ago)

Author:

suehring

Comment:

--

doc/app/initialization_parameters

@@ -1216 +1216 @@
 '''Note''': Due to the larger stencil of this scheme vertical grid stretching should be handled with care.
 The computation of turbulent fluxes takes place inside the advection routines to get a statistical evaluation consistent to the numerical solution. \\\\
+
+'''Note''', in case of large gradients close to poorly-resolved cavities, e.g. narrow street canyons, numerical oscillation can occur which might built-up if the flow is almost completely blocked. In this case it is recommended to apply a monotonic flux limiter ([#monotonic_limiter_z monotonic_limiter_z] = .T.) which guarantees monotone and positive definite vertical advection of passive scalars (only).  
+
 '' 'pw-scheme' ''\\\\
       The scheme of Piacsek and Williams (1970, J. Comp. Phys., 6, 392-405) with central differences in the form C3 is used.\\\\