Changes between Version 429 and Version 430 of doc/app/errmsg

Timestamp:

Jun 9, 2017 9:10:15 AM (8 years ago)

Author:

Giersch

Comment:

--

doc/app/errmsg

@@ -242 +242 @@
 ||[=#PA0200 PA0200]   ||missing dz   || No value for [../inipar#dz dz] was given in the parameter file. ||
 ||[=#PA0201 PA0201]   ||dz=... <= 0.0   || The value given for [../inipar#dz dz] must be greater than 0.0. ||
-||[=#PA0202 PA0202]   ||grid anisotropy exceeds threshold given by only local horizontal reduction of near_wall mixing length l_wall starting from height level k = ... .   ||  ||
+||[=#PA0202 PA0202]   ||grid anisotropy exceeds threshold given by only local horizontal reduction of near_wall mixing length l_wall starting from height level k = ... .   ||This is just a warning. It tells you that during the initialization of the near-wall mixing length {{{l_wall}}} which is important for the [/wiki/doc/tec/sgs turbulence closure] the grid-dependent mixing length {{{l_grid}}}='''''Δ''' = (Δx Δy Δz)^1/3^'' becomes relatively large. This might result in untrustworthy result. The reason for a large value of {{{l_grid}}} is the grid anisotropy. To avoid this message it is probable that you have to change your settings for [../inipar#dz_stretch_level] or [../inipar#dz_stretch_factor dz_stretch_factor].   ||  ||
 ||[=#PA0203 PA0203]   ||inconsistent building parameters: bxl=... bxr=... bys=... byn=... nx=... ny=...    || The setup of the single building ([../inipar#topography topography] = '' 'single_building' '') yields a too narrow building or the building walls are positioned outside of the model domain. Please check the [../inipar#topo building parameters] in your parameter file. ||
 ||[=#PA0204 PA0204]   ||no street canyon width given   || If [../inipar#topography topography] = '' 'single_street_canyon' '' is given, also a canyon width must be given by either specifying [../inipar#canyon_width_x canyon_width_x] or [../inipar#canyon_width_y canyon_width_y] in the parameter file. ||