Changeset 241 for palm/trunk/DOC


Ignore:
Timestamp:
Feb 19, 2009 4:08:56 PM (13 years ago)
Author:
letzel
Message:
  • Option to predefine a target bulk velocity for conserve_volume_flow
Location:
palm/trunk/DOC
Files:
3 edited

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Unmodified
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Removed
  • palm/trunk/DOC/app/chapter_4.1.html

    r240 r241  
    32563256 <span style="font-weight: bold;">conserve_volume_flow</span>
    32573257= <span style="font-style: italic;">.T.</span>
    3258 guarantees that the volume flow through the xz- or yz-cross-section of
    3259 the total model domain remains constant (equal to the initial value at
    3260 t=0) throughout the run.<br><br>Note that&nbsp;<span style="font-weight: bold;">conserve_volume_flow</span>
     3258guarantees that the volume flow through the xz- and yz-cross-sections of
     3259the total model domain remains constant throughout the run depending on the chosen <a href="#conserve_volume_flow_mode">conserve_volume_flow_mode</a>.<br><br>Note that&nbsp;<span style="font-weight: bold;">conserve_volume_flow</span>
    32613260= <span style="font-style: italic;">.T.</span> requires <a href="#dp_external">dp_external</a> = <span style="font-style: italic;">.F.</span> .<br>
    32623261
     
    32813280
    32823281
    3283  <tr>
     3282 <tr><td style="vertical-align: top;"><span style="font-weight: bold;"><a name="conserve_volume_flow_mode"></a>conserve_volume_flow_mode</span></td><td style="vertical-align: top;">C * 16</td><td style="vertical-align: top;"><span style="font-style: italic;">'default'</span></td><td>Modus of volume flow conservation.<br><br>The following values are allowed:<br><p style="font-style: normal;"><span style="font-style: italic;">'default'</span>
     3283      </p>
     3284
     3285
     3286
     3287
     3288
     3289
     3290 
     3291     
     3292     
     3293     
     3294     
     3295     
     3296     
     3297      <ul><p>Per default, PALM uses&nbsp;<span style="font-style: italic;">'initial_profiles'</span> for cyclic lateral boundary conditions (<a href="#bc_lr">bc_lr</a> = <span style="font-style: italic;">'cyclic'</span> and <a href="#bc_ns">bc_ns</a> = <span style="font-style: italic;">'cyclic'</span>) and&nbsp;<span style="font-style: italic;">'inflow_profile'</span> for non-cyclic lateral boundary conditions (<a href="chapter_4.1.html#bc_lr">bc_lr</a> /= <span style="font-style: italic;">'cyclic'</span> or <a href="chapter_4.1.html#bc_ns">bc_ns</a> /= <span style="font-style: italic;">'cyclic'</span>).</p></ul>
     3298
     3299
     3300
     3301
     3302
     3303
     3304 
     3305     
     3306     
     3307     
     3308     
     3309     
     3310     
     3311      <p style="font-style: italic;">'initial_profiles' </p>
     3312
     3313
     3314
     3315
     3316
     3317
     3318
     3319     
     3320     
     3321     
     3322     
     3323     
     3324     
     3325      <ul><p>The target volume flow&nbsp;is calculated at t=0 from the initial profiles of u and v.&nbsp;This setting is only allowed for&nbsp;cyclic lateral boundary conditions (<a href="chapter_4.1.html#bc_lr">bc_lr</a> = <span style="font-style: italic;">'cyclic'</span> and <a href="chapter_4.1.html#bc_ns">bc_ns</a> = <span style="font-style: italic;">'cyclic'</span>).</p></ul>
     3326
     3327
     3328
     3329
     3330
     3331
     3332 
     3333     
     3334     
     3335     
     3336     
     3337     
     3338     
     3339      <p style="font-style: normal;"><span style="font-style: italic;">'inflow_profile'</span>
     3340      </p>
     3341
     3342
     3343
     3344
     3345
     3346
     3347 
     3348     
     3349     
     3350     
     3351     
     3352     
     3353     
     3354      <ul><p>The target volume flow&nbsp;is&nbsp;calculated at every timestep from the inflow profile of&nbsp;u or v, respectively. This setting&nbsp;is only allowed for&nbsp;non-cyclic lateral boundary conditions (<a href="chapter_4.1.html#bc_lr">bc_lr</a> /= <span style="font-style: italic;">'cyclic'</span> or <a href="chapter_4.1.html#bc_ns">bc_ns</a> /= <span style="font-style: italic;">'cyclic'</span>).</p></ul>
     3355
     3356
     3357
     3358
     3359
     3360
     3361 
     3362     
     3363     
     3364     
     3365     
     3366     
     3367     
     3368      <p style="font-style: italic;">'bulk_velocity' </p>
     3369
     3370
     3371
     3372
     3373
     3374
     3375
     3376     
     3377     
     3378     
     3379     
     3380     
     3381     
     3382      <ul><p>The target volume flow is calculated from a predefined bulk velocity (see <a href="#u_bulk">u_bulk</a> and <a href="#v_bulk">v_bulk</a>). This setting is only allowed for&nbsp;cyclic lateral boundary conditions (<a href="chapter_4.1.html#bc_lr">bc_lr</a> = <span style="font-style: italic;">'cyclic'</span> and <a href="chapter_4.1.html#bc_ns">bc_ns</a> = <span style="font-style: italic;">'cyclic'</span>).</p></ul>
     3383
     3384
     3385
     3386
     3387
     3388
     3389 
     3390     
     3391     
     3392     
     3393     
     3394     
     3395     
     3396      <span style="font-style: italic;"></span>Note that&nbsp;<span style="font-weight: bold;">conserve_volume_flow_mode</span>
     3397only comes into effect if <a href="#conserve_volume_flow">conserve_volume_flow</a> = <span style="font-style: italic;">.T. .</span> </td></tr><tr>
    32843398
    32853399      <td style="vertical-align: top;"><a name="cthf"></a><span style="font-weight: bold;">cthf</span></td>
     
    1485114965for recycling and the width of the layer within&nbsp;the magnitude of
    1485214966the turbulence signal is damped from 100% to 0% can be set with
    14853 parameters <a href="chapter_4.1.html#inflow_damping_height">inflow_damping_height</a> and <a href="chapter_4.1.html#inflow_damping_width">inflow_damping_width</a>.<br><br>The detailed setup for a turbulent inflow is described in <a href="chapter_3.9.html">chapter 3.9</a>.</td></tr><tr>
     14967parameters <a href="chapter_4.1.html#inflow_damping_height">inflow_damping_height</a> and <a href="chapter_4.1.html#inflow_damping_width">inflow_damping_width</a>.<br><br>The detailed setup for a turbulent inflow is described in <a href="chapter_3.9.html">chapter 3.9</a>.</td></tr><tr><td style="vertical-align: top;"><span style="font-weight: bold;"><a name="u_bulk"></a>u_bulk</span></td><td style="vertical-align: top;">R</td><td style="vertical-align: top;"><span style="font-style: italic;">0.0</span></td><td>u-component of the predefined bulk velocity (in m/s).<br><br>This parameter comes into effect if <a href="#conserve_volume_flow">conserve_volume_flow</a> = <span style="font-style: italic;">.T.</span> and <a href="#conserve_volume_flow_mode">conserve_volume_flow_mode</a> = <span style="font-style: italic;">'bulk_velocity'</span>.</td></tr><tr>
    1485414968
    1485514969
     
    1628416398
    1628516399
    16286     <tr>
     16400    <tr><td style="vertical-align: top;"><span style="font-weight: bold;"><a name="v_bulk"></a>v_bulk</span></td><td style="vertical-align: top;">R</td><td style="vertical-align: top;"><span style="font-style: italic;">0.0</span></td><td>v-component of the predefined bulk velocity (in m/s).<br><br>This parameter comes into effect if <a href="chapter_4.1.html#conserve_volume_flow">conserve_volume_flow</a> = <span style="font-style: italic;">.T.</span> and <a href="chapter_4.1.html#conserve_volume_flow_mode">conserve_volume_flow_mode</a> = <span style="font-style: italic;">'bulk_velocity'</span>.</td></tr><tr>
    1628716401
    1628816402
  • palm/trunk/DOC/app/chapter_4.6.html

    r240 r241  
    20902090
    20912091
    2092  <tr>
     2092 <tr><td><a href="chapter_4.1.html#conserve_volume_flow_mode"><span style="font-weight: bold;">conserve_volume_flow_mode</span></a></td><td>I</td><td>C * 16</td><td><span style="font-style: italic;">'default'</span></td><td>Modus of volume flow conservation.</td></tr><tr>
    20932093
    20942094
     
    1390713907
    1390813908
    13909     <tr><td align="undefined" valign="undefined"><a href="chapter_4.1.html#turbulent_inflow"><span style="font-weight: bold;">turbulent_inflow</span></a></td><td align="undefined" valign="undefined">I</td><td align="undefined" valign="undefined">L</td><td align="undefined" valign="undefined"><span style="font-style: italic;">.F.</span></td><td align="undefined" valign="undefined">Generates a turbulent inflow at side boundaries using a turbulence recycling method.</td></tr><tr>
     13909    <tr><td align="undefined" valign="undefined"><a href="chapter_4.1.html#turbulent_inflow"><span style="font-weight: bold;">turbulent_inflow</span></a></td><td align="undefined" valign="undefined">I</td><td align="undefined" valign="undefined">L</td><td align="undefined" valign="undefined"><span style="font-style: italic;">.F.</span></td><td align="undefined" valign="undefined">Generates a turbulent inflow at side boundaries using a turbulence recycling method.</td></tr><tr><td><a href="chapter_4.1.html#u_bulk"><span style="font-weight: bold;">u_bulk</span></a></td><td>I</td><td>R</td><td><span style="font-style: italic;">0.0</span></td><td>u-component of the predefined bulk velocity (in m/s).</td></tr><tr>
    1391013910
    1391113911
     
    1445714457
    1445814458
    14459  <td>.F.</td>
     14459 <td style="font-style: italic;">.F.</td>
    1446014460
    1446114461
     
    1484614846
    1484714847
    14848  <tr>
     14848 <tr><td><a href="chapter_4.1.html#v_bulk"><span style="font-weight: bold;">v_bulk</span></a></td><td>I</td><td>R</td><td><span style="font-style: italic;">0.0</span></td><td>v-component of the predefined bulk velocity (in m/s).</td></tr><tr>
    1484914849
    1485014850
  • palm/trunk/DOC/tec/message_identifiers

    r240 r241  
    235235    PA0152           dp_external is .TRUE. but dpdxy is zero, i.e. the external
    236236                      pressure gradient will not be applied
    237     PA0153           dpdxy is nonzero but dp_external is .FALSE., i.e. the external
    238                       pressure gradient will not be applied
     237    PA0153           dpdxy is nonzero but dp_external is .FALSE., i.e. the
     238                      external pressure gradient will not be applied
     239    PA0154           unknown conserve_volume_flow_mode: ...
     240    PA0155           noncyclic boundary conditions require
     241                      conserve_volume_flow_mode = ''inflow_profile''
     242    PA0156           cyclic boundary conditions require conserve_volume_flow_mode =
     243                      ''initial_profiles'' or ''bulk_velocity''
     244                      requires noncyclic boundary conditions
     245    PA0157           nonzero bulk velocity requires conserve_volume_flow = .T. and
     246                      conserve_volume_flow_mode = ''bulk_velocity''
    239247
    240248    UI0001           The value for "topography_grid_convention" is not set.
    241249                      Its default value is only valid for
    242                       "topography" = ''single_building'', ''single_street_canyon''or
    243                       ''read_from_file'' Choose ''cell_edge'' or
    244                       ''cell_center''.
     250                      "topography" = ''single_building'',
     251                      ''single_street_canyon'' or ''read_from_file''
     252                      Choose ''cell_edge'' or ''cell_center''.
    245253    UI0002           The value for "topography_grid_convention" is not
    246254                      recognized. Choose ''cell_edge'' or ''cell_center''.
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