Changes between Version 274 and Version 275 of doc/app/initialization_parameters

Timestamp:

Apr 6, 2016 4:02:26 PM (9 years ago)

Author:

scharf

Comment:

--

doc/app/initialization_parameters

@@ -1065 +1065 @@
 {{{#!td
 Largest residual permitted for the multigrid scheme (in s^-2^m^-3^).\\\\
-This is a parameter to steer the accuracy of the multigrid scheme (see [#psolver psolver]). The assigned cycle (v- or w-cycle, see [#mg_cycles mg_cycles]) is passed through until the residual falls below the limit given by '''residual_limit'''. If this is not the case after 1000 cycles, the PALM aborts with a corresponding error message.\\\\
+This is a parameter to steer the accuracy of the multigrid scheme (see [#psolver psolver]). The divergence of the 3D velocity field will be reduced iteratively as long as the calculated residual is greater than '''residual_limit'''. After a maximum number of 1000 iterative cycles, PALM aborts with a corresponding error message.\\\\
 The reciprocal value of this parameter can be interpreted as a factor by the divergence of the provisional velocity field is approximately reduced after the multigrid scheme has been applied (thus, the default value causes a reduction of the divergence by approx. 6 orders of magnitude).  
 }}}