Changes between Version 24 and Version 25 of doc/app/initialization_parameters

Timestamp:

Sep 13, 2010 2:30:52 PM (14 years ago)

Author:

kanani

Comment:

--

doc/app/initialization_parameters

@@ -189 +189 @@
 In case of these non-cyclic lateral boundaries, a Dirichlet condition is used at the inflow for all quantities (initial vertical profiles - see [#initializing_actions initializing_actions] - are fixed during the run) except u, to which a Neumann (zero gradient) condition is applied. At the outflow, a radiation condition is used for all velocity components, while a Neumann (zero gradient) condition is used for the scalars. For perturbation pressure Neumann (zero gradient) conditions are assumed both at the inflow and at the outflow.\\\\
 For further details regarding non-cyclic lateral boundary conditions see [#bc_lr bc_lr].
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#bc_p_b '''bc_p_b''']
+}}}
+{{{#!td style="vertical-align:top"
+C*20
+}}}
+{{{#!td style="vertical-align:top"
+'neumann'
+}}}
+{{{#!td
+Bottom boundary condition of the perturbation pressure.\\\\
+Allowed values are '' 'dirichlet' '', '' 'neumann' '' and '' 'neumann+inhomo' ''.  '' 'dirichlet' '' sets p(k=0)=0.0, '' 'neumann' '' sets p(k=0)=p(k=1). '' 'neumann+inhomo' '' corresponds to an extended Neumann boundary condition where heat flux or temperature inhomogeneities near the surface (pt(k=1)) are additionally regarded (see Shen and LeClerc (1995, Q.J.R. Meteorol. Soc., 1209)). This condition is only permitted with the Prandtl-layer switched on ([#prandtl_layer prandtl_layer]), otherwise the run is terminated.\\\\
+Since at the bottom boundary of the model the vertical velocity disappears (w(k=0) = 0.0), the consistent Neumann condition ('' 'neumann' '' or '' 'neumann+inhomo' '') dp/dz = 0 should be used, which leaves the vertical component w unchanged when the pressure solver is applied. Simultaneous use of the Neumann boundary conditions both at the bottom and at the top boundary ([#bc_p_t bc_p_t]) usually yields no consistent solution for the perturbation pressure and should be avoided.
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#<insert_parameter_name> '''<insert_parameter_name>''']
+}}}
+{{{#!td style="vertical-align:top"
+<insert type>
+}}}
+{{{#!td style="vertical-align:top"
+<insert value>
+}}}
+{{{#!td
+<insert explanation>
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#<insert_parameter_name> '''<insert_parameter_name>''']
+}}}
+{{{#!td style="vertical-align:top"
+<insert type>
+}}}
+{{{#!td style="vertical-align:top"
+<insert value>
+}}}
+{{{#!td
+<insert explanation>
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#<insert_parameter_name> '''<insert_parameter_name>''']
+}}}
+{{{#!td style="vertical-align:top"
+<insert type>
+}}}
+{{{#!td style="vertical-align:top"
+<insert value>
+}}}
+{{{#!td
+<insert explanation>
 }}}
 |----------------