Changeset 103 for palm/trunk/DOC/app/chapter_4.1.html

Timestamp:

Jul 30, 2007 10:49:46 AM (17 years ago)

Author:

raasch

Message:

further preliminary changes concerning coupling

File:

• palm/trunk/DOC/app/chapter_4.1.html (modified) (4 diffs)

palm/trunk/DOC/app/chapter_4.1.html

@@ -1880 +1880 @@
 condition must be used for the potential temperature (see <a href="chapter_4.1.html#bc_pt_t">bc_pt_t</a>),
 because otherwise the resolved scale may contribute to
-the top flux so that a constant value cannot be guaranteed.<span style="font-style: italic;"></span>&nbsp;</p>
+the top flux so that a constant flux value cannot be guaranteed.<span style="font-style: italic;"></span>&nbsp;</p>
 <p><span style="font-weight: bold;">Note:</span><br>The
 application of a top heat flux additionally requires the setting of
@@ -1887 +1887 @@
 Prandtl-layer is available at the top boundary so far.</p><p>See
 also <a href="#surface_heatflux">surface_heatflux</a>.</p>
-</td></tr><tr><td style="vertical-align: top;"><a name="top_salinityflux"></a><span style="font-weight: bold;">top_salinityflux</span></td><td style="vertical-align: top;">R</td><td style="vertical-align: top;"><span style="font-style: italic;">no prescribed<br>
+</td></tr><tr><td style="vertical-align: top;"><a name="top_momentumflux_u"></a><span style="font-weight: bold;">top_momentumflux_u</span></td><td style="vertical-align: top;">R</td><td style="vertical-align: top;"><span style="font-style: italic;">no prescribed momentumflux</span></td><td style="vertical-align: top;">Momentum flux along x at the top boundary (in m2/s2).<br><p>If a value is assigned to this parameter, the internal
+two-dimensional u-momentum flux field <span style="font-family: monospace;">uswst</span> is
+initialized with the value of <span style="font-weight: bold;">top_momentumflux_u</span> as
+top (horizontally homogeneous) boundary condition for the u-momentum equation.</p><p><span style="font-weight: bold;">Notes:</span><br>The
+application of a top momentum flux additionally requires the setting of
+initial parameter <a href="chapter_4.1.html#use_top_fluxes">use_top_fluxes</a>
+= .T.. Setting of <span style="font-weight: bold;">top_momentumflux_u</span> requires setting of <a href="#top_momentumflux_v">top_momentumflux_v</a> also.</p><p>A&nbsp;Neumann
+condition should be used for the u velocity component (see <a href="chapter_4.1.html#bc_uv_t">bc_uv_t</a>),
+because otherwise the resolved scale may contribute to
+the top flux so that a constant flux value cannot be guaranteed.<span style="font-style: italic;"></span>&nbsp;</p>
+<span style="font-weight: bold;"></span><p>No
+Prandtl-layer is available at the top boundary so far.</p></td></tr><tr><td style="vertical-align: top;"><a name="top_momentumflux_v"></a><span style="font-weight: bold;">top_momentumflux_v</span></td><td style="vertical-align: top;">R</td><td style="vertical-align: top;"><span style="font-style: italic;">no prescribed momentumflux</span></td><td style="vertical-align: top;">Momentum flux along y at the top boundary (in m2/s2).<br><p>If a value is assigned to this parameter, the internal
+two-dimensional v-momentum flux field <span style="font-family: monospace;">vswst</span> is
+initialized with the value of <span style="font-weight: bold;">top_momentumflux_v</span> as
+top (horizontally homogeneous) boundary condition for the v-momentum equation.</p><p><span style="font-weight: bold;">Notes:</span><br>The
+application of a top momentum flux additionally requires the setting of
+initial parameter <a href="chapter_4.1.html#use_top_fluxes">use_top_fluxes</a>
+= .T.. Setting of <span style="font-weight: bold;">top_momentumflux_v</span> requires setting of <a href="chapter_4.1.html#top_momentumflux_u">top_momentumflux_u</a> also.</p><p>A&nbsp;Neumann
+condition should be used for the v velocity component (see <a href="chapter_4.1.html#bc_uv_t">bc_uv_t</a>),
+because otherwise the resolved scale may contribute to
+the top flux so that a constant flux value cannot be guaranteed.<span style="font-style: italic;"></span>&nbsp;</p>
+<span style="font-weight: bold;"></span><p>No
+Prandtl-layer is available at the top boundary so far.</p></td></tr><tr><td style="vertical-align: top;"><a name="top_salinityflux"></a><span style="font-weight: bold;">top_salinityflux</span></td><td style="vertical-align: top;">R</td><td style="vertical-align: top;"><span style="font-style: italic;">no prescribed<br>
 salinityflux</span></td><td style="vertical-align: top;"><p>Kinematic
 salinity flux at the top boundary, i.e. the sea surface (in psu m/s).&nbsp; </p>
@@ -1896 +1918 @@
 condition must be used for the salinity (see <a href="chapter_4.1.html#bc_sa_t">bc_sa_t</a>),
 because otherwise the resolved scale may contribute to
-the top flux so that a constant value cannot be guaranteed.<span style="font-style: italic;"></span>&nbsp;</p>
+the top flux so that a constant flux value cannot be guaranteed.<span style="font-style: italic;"></span>&nbsp;</p>
 <p><span style="font-weight: bold;">Note:</span><br>The
 application of a salinity flux at the model top additionally requires the setting of
@@ -2077 +2099 @@
 = <i>.TRUE.</i>, the user-assigned top fluxes are used
 instead
-(see <a href="chapter_4.1.html#top_heatflux">top_heatflux</a>).</p><p>Currently,
-only a value for the sensible heatflux can be assigned. In case of <span style="font-weight: bold;">use_top_fluxes</span> = <span style="font-style: italic;">.TRUE.</span>, the latent
+(see <a href="chapter_4.1.html#top_heatflux">top_heatflux</a>, <a href="#top_momentumflux_u">top_momentumflux_u</a>, <a href="#top_momentumflux_v">top_momentumflux_v</a>, <a href="#top_salinityflux">top_salinityflux</a>).</p><p>Currently, no value for the latent heatflux can be assigned. In case of <span style="font-weight: bold;">use_top_fluxes</span> = <span style="font-style: italic;">.TRUE.</span>, the latent
 heat flux at the top will be automatically set to zero.</p></td></tr><tr>
 <td style="vertical-align: top;"> <p><a name="use_ug_for_galilei_tr"></a><b>use_ug_for_galilei_tr</b></p>