Changes between Version 7 and Version 8 of doc/tec/bc

Timestamp:

Apr 5, 2016 2:02:17 PM (9 years ago)

Author:

maronga

Comment:

--

doc/tec/bc

@@ -37 +37 @@
 #!Latex
 \begin{align}
-  & \label{eq:L}
+  & 
 L = \frac{\theta_\mathrm{v}(z) u_\ast^2}{\kappa g
     \left[\theta_\ast + 0.61 \theta(z) q_\ast + 0.61
@@ -48 +48 @@
 #!Latex
 \begin{align}
-  & \label{eq:scales} \theta_\ast = -
+  & \theta_\ast = -
   \frac{\overline{w^{\prime\prime}\theta^{\prime\prime}}_0}{u_\ast},~q_\ast
   = -
@@ -187 +187 @@
 until ''L'' meets a convergence criterion. 
 
-If {{{most_method = 'lookup'}}} is used, a table of ''Ri_\mathrm{b}'' against ''z'',,MO,,/''L'' is created at model start, based on the prescribed values of the roughness lengths. During the model run, ''Ri_\mathrm{b}'' is calculated and the respectively value of ''z'',,MO,,/''L'' is retrieved from the lookup table and using linear interpolation between the discrete values in the table. In order to speed up this method, the value of ''Ri_\mathrm{b}'' from the previous time step is used as initial value. Due to the fact that the lookup table is created at model start, it is essential that the roughness lengths are 1) homogeneous on each processor (limiting this method to homogeneous surface configurations) and should not vary during the simulation (should thus not be used when using dynamic roughness length over water surfaces).
+If {{{most_method = 'lookup'}}} is used, a table of ''Ri_\mathrm{b}'' against ''z'',,MO,,/''L'' is created at model start, based on the prescribed values of the roughness lengths. During the model run, ''Ri,,b,,'' is calculated and the respectively value of ''z'',,MO,,/''L'' is retrieved from the lookup table and using linear interpolation between the discrete values in the table. In order to speed up this method, the value of ''Ri_\mathrm{b}'' from the previous time step is used as initial value. Due to the fact that the lookup table is created at model start, it is essential that the roughness lengths are 1) homogeneous on each processor (limiting this method to homogeneous surface configurations) and should not vary during the simulation (should thus not be used when using dynamic roughness length over water surfaces).
 
 For more details, see [source:palm/trunk/SOURCE/surface_layer_fluxes.f90 surface_layer_fluxes.f90].