Home


About us
PALM
PALM-4U
Installation
Release notes
Documentation
Getting Help
Gallery
Developers area

Changes between Version 8 and Version 9 of gallery/movies/cbl


Ignore:
Timestamp:
Jul 7, 2014 12:03:12 AM (11 years ago)
Author:
knoop
Comment:

--

Legend:

Unmodified
Added
Removed
Modified

  • gallery/movies/cbl

    v8 v9  
    33The following four sequences are showing different flow aspects and phenomena of the convective boundary layer. All simulations are driven by a constant and horizontally homogeneous surface sensible (and latent) heat flux. The initial state is an atmosphere at rest with neutral stratification, capped by an inversion at about 800m. Simulations differ in domain size and grid resolution.\\
    44
    5 ||||='''First sequence: 3D view on moist convection (2001)''' =||
    6 {{{#!td style="vertical-align:top; border: 0px solid"
    7 {{{#!html
    8 <embed
    9     type="application/x-shockwave-flash"
    10     id="player"
    11     name="player"
    12     src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
    13     width="512"
    14     height="408"
    15     allowfullscreen="true"
    16     flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl5.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery//movies/cbl5_preview.jpg"
    17 />
    18 }}}
    19 }}}
    20 {{{#!td style="vertical-align:top; border: 0px solid""
    21 '''Project:''' none\\
    22 \\
    23 '''Responsible:''' [[imuk/members/raasch|Siegfried Raasch]]\\
    24 \\
    25 '''Description:''' Particles are released near the surface. The particle color reflects the buoyancy at the current particle position (red: positive, blue: negative). The particle size is proportional to the magnitude of the vertical velocity component. The isososurfaces display areas with a liquid water content larger than 0.2 g/kg, i.e. cumulus clouds. The horizontal domain size in this simulation is too small in order to allow the development of the typical near-surface hexagonal flow pattern (see next two sequences).\\
    26 ||||='''Model Setup'''  =||
    27 ||Total domain size (x|y|z):||2000m x 2000m x 4638m||
    28 ||Grid spacing (x|y|z):||25m x 25m x 25m||
    29 ||Number of grid points (x|y|z):||80 x 80 x 80||
    30 ||Simulated time:||1h||
    31 ||CPU-time:||176h||
    32 ||Number of CPUs:||32||
    33 ||Machine/ processor type:||SGI Altix ICE at HLRN / Intel Xeon Gainestown||
    34 ||Visualization software:||DSVR||
    35 \\
    36 ||||||='''Download'''  =||
    37 ||Video Format  ||File size  ||
    38 ||Flash (.flv)  ||  9.6mb||[[htdocs:gallery/movies/cbl5.flv|Download]]  ||
    39 ||MPEG (.avi)   ||  9.7mb||[[htdocs:gallery/movies/cbl5.avi|Download]]  ||
    40 \\
    41 }}}
    42 
    43 
    44 \\
    45 
    46 
    47 ||||='''Second & Third sequence: horizontal cross-sections (2009)''' =||
    48 {{{#!td style="vertical-align:top; border: 0px solid; width:512px"
    49 {{{#!html
    50 <embed
    51     type="application/x-shockwave-flash"
    52     id="player"
    53     name="player"
    54     src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
    55     width="356"
    56     height="366"
    57     allowfullscreen="true"
    58     flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl_25fps_flash.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl_preview.jpg"
    59 />
    60 <br>
    61 <embed
    62     type="application/x-shockwave-flash"
    63     id="player"
    64     name="player"
    65     src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
    66     width="356"
    67     height="366"
    68     allowfullscreen="true"
    69     flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl2_25fps_flash.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl2_preview.jpg"
    70 />
    71 }}}
    72 }}}
    73 {{{#!td style="vertical-align:top; border: 0px solid""
    74 '''Project:''' [[imuk/projects/2008_05|Numerical Simulation of the interaction between the atmosphere and the wing circulation]]\\
    75 \\
    76 '''Responsible:''' [[imuk/members/helmke|Carolin Helmke]]\\
    77 \\
    78 '''Description:''' \\
    79 Second sequence:\\
    80 Shown is the horizontal near-surface flow at z = 10m in a dry convective boundary layer. The particle color reflects the vertical velocity at the current particle position (red: upward, blue:downward). The near-surface flow is dominated by hexagonal cells with weak downdrafts in their centers and strong narrow updrafts within the lines of convergence between the cells. This flow pattern is sometimes called spoke-like pattern. Big plumes with cumulus clouds at their top can always be found at those centers where several spokes are merging. Although a very high grid resolution has been used, the pixel resolution used here does not allow to see any detailed small-scale flow structures. This sequence shows the last 15 minutes of a model run with 1.5 hours simulated time in total.\\
    81 \\
    82 Third sequence:\\
    83 The simulation and particle features are the same as for the second sequence, but here only a part of the horizontal domain with a size of 400 m x 400 m is shown. The fine grid spacing allows to resolve vortex-like structures which develop within the convergence lines. Some of them are part of dust-devil-like vortices (see next sequence).
    84 ||||='''Model Setup'''  =||
    85 ||Total domain size (x|y|z):||4096.0m x 4096.0m x 1859.7m||
    86 ||Grid spacing (x|y|z):||2m x 2m x 2m||
    87 ||Number of grid points (x|y|z):||2048 x 2048 x 450||
    88 ||Simulated time:||900s||
    89 ||CPU-time:||4.8h||
    90 ||Number of CPUs:||2048||
    91 ||Machine/ processor type:||SGI Altix ICE at HLRN / Intel Xeon Gainestown||
    92 ||Visualization software:||DSVR||
    93 \\
    94 ||||||='''Download'''  =||
    95 ||Video Format  ||File size  ||
    96 ||Flash (.flv)  ||  13.7mb||[[htdocs:gallery/movies/cbl_25fps_flash.flv|Download]] (2nd Sequence)   ||
    97 ||MPEG (.avi)   ||  14.3mb||[[htdocs:gallery/movies/cbl_25fps_mpeg.avi|Download]]  (2nd Sequence)   ||
    98 ||Flash (.flv)  ||   3.1mb||[[htdocs:gallery/movies/cbl2_25fps_flash.flv|Download]] (3nd Sequence)  ||
    99 ||MPEG (.avi)   ||   3.1mb||[[htdocs:gallery/movies/cbl2_25fps_mpeg.avi|Download]] (3rd Sequence)   ||
    100 \\
    101 }}}
    102 
    103 
    104 \\
    105 
    106 
    107 ||||='''Fourth sequence: dust devils (2006)''' =||
    108 {{{#!td style="vertical-align:top; border: 0px solid"
    109 {{{#!html
    110 <embed
    111     type="application/x-shockwave-flash"
    112     id="player"
    113     name="player"
    114     src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
    115     width="512"
    116     height="368"
    117     allowfullscreen="true"
    118     flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/dust_devil.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/dust_devil_preview.jpg"
    119 />
    120 }}}
    121 }}}
    122 {{{#!td style="vertical-align:top; border: 0px solid""
    123 '''Project:''' [[imuk/projects/2006_02|LES of dust devils]]\\
    124 \\
    125 '''Responsible:''' [[imuk/members/franke|Theres Riechelmann]]\\
    126 \\
    127 '''Description:''' \\
    128 This animation displays 3d-views of the lower 150m of the same convective boundary layer as shown before. Particles are released near the surface in those areas, where the dynamic pressure is below a specified threshold of -2 Pa. This allows to visualize dust-devil like vortices, which always have a pressure minimum in their center. The particle color displays the magnitude of horizontal velocity (red: fast, blue: slow). At the end of the sequence, two dust devils with opposite rotation collide and cancel out each other due to conservation of angular momentum.
    129 ||||='''Model Setup'''  =||
    130 ||Total domain size (x|y|z):||768m x 768m x 768m||
    131 ||Grid spacing (x|y|z):||2m x 2m x 2m||
    132 ||Number of grid points (x|y|z):||384 x 384 x 384||
    133 ||Simulated time:||1h||
    134 ||CPU-time:||||
    135 ||Number of CPUs:||||
    136 ||Machine/ processor type:||IBM Regatta / Power 4||
    137 ||Visualization software:||DSVR||
    138 \\
    139 ||||||='''Download'''  =||
    140 ||Video Format  ||File size  ||
    141 ||Flash (.flv)  ||  9.6mb||[[htdocs:gallery/movies/dust_devil.flv|Download]]  ||
    142 ||MPEG (.avi)   ||  9.7mb||[[htdocs:gallery/movies/dust_devil.avi|Download]]  ||
    143 \\
    144 }}}
    145 
    146 
    147 \\
    148 
    149 
    150 ||||='''Fifth sequence: dust devils in the convective boundary layer (2012)''' =||
    151 {{{#!td style="vertical-align:top; border: 0px solid"
    152 {{{#!html
    153 <embed
    154     type="application/x-shockwave-flash"
    155     id="player"
    156     name="player"
    157     src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
    158     width="512"
    159     height="378"
    160     allowfullscreen="true"
    161     flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/dd_flash.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/dd_preview.png"
    162 />
     5
     6
     7||||='''Dust devils in the convective boundary layer (2012)''' =||
     8{{{#!td style="vertical-align:top; border: 0px solid"
     9{{{#!html
     10<iframe width="560" height="315" src="//www.youtube.com/embed/iJIRrk7tKws" frameborder="0" allowfullscreen></iframe>
    16311}}}
    16412}}}
    … …  
    18230||Visualization software:||VAPOR||
    18331||DOI:||[http://dx.doi.org/10.5446/9352 10.5446/9352]||
    184 \\
    185 ||||||='''Download'''  =||
    186 ||Video Format  ||File size  ||
    187 ||Flash (.flv)  ||  5.0mb||[[htdocs:gallery/movies/dd_flash.flv|Download]]  ||
    188 ||MPEG (.avi)   ||  4.8mb||[[htdocs:gallery/movies/dd_mpeg.avi|Download]]  ||
    189 \\
    190 }}}
    191 
    192 
    193 \\
    194 
    195 
    196 
    197 ||||='''Sixth sequence: structure parameter for temperature C,,T,,^2^ (2010)''' =||
     32}}}
     33\\
     34
     35
     36
     37||||='''Structure parameter for temperature C,,T,,^2^ (2010)''' =||
    19838{{{#!td style="vertical-align:top; border: 0px solid"
    19939{{{#!html
    … …  
    22969\\
    23070}}}
     71
     72
     73\\
     74
     75
     76||||='''Horizontal cross-sections (2009)''' =||
     77{{{#!td style="vertical-align:top; border: 0px solid; width:512px"
     78{{{#!html
     79<embed
     80    type="application/x-shockwave-flash"
     81    id="player"
     82    name="player"
     83    src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
     84    width="356"
     85    height="366"
     86    allowfullscreen="true"
     87    flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl_25fps_flash.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl_preview.jpg"
     88/>
     89<br>
     90<embed
     91    type="application/x-shockwave-flash"
     92    id="player"
     93    name="player"
     94    src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
     95    width="356"
     96    height="366"
     97    allowfullscreen="true"
     98    flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl2_25fps_flash.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl2_preview.jpg"
     99/>
     100}}}
     101}}}
     102{{{#!td style="vertical-align:top; border: 0px solid""
     103'''Project:''' [[imuk/projects/2008_05|Numerical Simulation of the interaction between the atmosphere and the wing circulation]]\\
     104\\
     105'''Responsible:''' [[imuk/members/helmke|Carolin Helmke]]\\
     106\\
     107'''Description:''' \\
     108Second sequence:\\
     109Shown is the horizontal near-surface flow at z = 10m in a dry convective boundary layer. The particle color reflects the vertical velocity at the current particle position (red: upward, blue:downward). The near-surface flow is dominated by hexagonal cells with weak downdrafts in their centers and strong narrow updrafts within the lines of convergence between the cells. This flow pattern is sometimes called spoke-like pattern. Big plumes with cumulus clouds at their top can always be found at those centers where several spokes are merging. Although a very high grid resolution has been used, the pixel resolution used here does not allow to see any detailed small-scale flow structures. This sequence shows the last 15 minutes of a model run with 1.5 hours simulated time in total.\\
     110\\
     111Third sequence:\\
     112The simulation and particle features are the same as for the second sequence, but here only a part of the horizontal domain with a size of 400 m x 400 m is shown. The fine grid spacing allows to resolve vortex-like structures which develop within the convergence lines. Some of them are part of dust-devil-like vortices (see next sequence).
     113||||='''Model Setup'''  =||
     114||Total domain size (x|y|z):||4096.0m x 4096.0m x 1859.7m||
     115||Grid spacing (x|y|z):||2m x 2m x 2m||
     116||Number of grid points (x|y|z):||2048 x 2048 x 450||
     117||Simulated time:||900s||
     118||CPU-time:||4.8h||
     119||Number of CPUs:||2048||
     120||Machine/ processor type:||SGI Altix ICE at HLRN / Intel Xeon Gainestown||
     121||Visualization software:||DSVR||
     122\\
     123||||||='''Download'''  =||
     124||Video Format  ||File size  ||
     125||Flash (.flv)  ||  13.7mb||[[htdocs:gallery/movies/cbl_25fps_flash.flv|Download]] (2nd Sequence)   ||
     126||MPEG (.avi)   ||  14.3mb||[[htdocs:gallery/movies/cbl_25fps_mpeg.avi|Download]]  (2nd Sequence)   ||
     127||Flash (.flv)  ||   3.1mb||[[htdocs:gallery/movies/cbl2_25fps_flash.flv|Download]] (3nd Sequence)  ||
     128||MPEG (.avi)   ||   3.1mb||[[htdocs:gallery/movies/cbl2_25fps_mpeg.avi|Download]] (3rd Sequence)   ||
     129\\
     130}}}
     131
     132
     133\\
     134
     135
     136||||='''Dust devils (2006)''' =||
     137{{{#!td style="vertical-align:top; border: 0px solid"
     138{{{#!html
     139<embed
     140    type="application/x-shockwave-flash"
     141    id="player"
     142    name="player"
     143    src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
     144    width="512"
     145    height="368"
     146    allowfullscreen="true"
     147    flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/dust_devil.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/dust_devil_preview.jpg"
     148/>
     149}}}
     150}}}
     151{{{#!td style="vertical-align:top; border: 0px solid""
     152'''Project:''' [[imuk/projects/2006_02|LES of dust devils]]\\
     153\\
     154'''Responsible:''' [[imuk/members/franke|Theres Riechelmann]]\\
     155\\
     156'''Description:''' \\
     157This animation displays 3d-views of the lower 150m of the same convective boundary layer as shown before. Particles are released near the surface in those areas, where the dynamic pressure is below a specified threshold of -2 Pa. This allows to visualize dust-devil like vortices, which always have a pressure minimum in their center. The particle color displays the magnitude of horizontal velocity (red: fast, blue: slow). At the end of the sequence, two dust devils with opposite rotation collide and cancel out each other due to conservation of angular momentum.
     158||||='''Model Setup'''  =||
     159||Total domain size (x|y|z):||768m x 768m x 768m||
     160||Grid spacing (x|y|z):||2m x 2m x 2m||
     161||Number of grid points (x|y|z):||384 x 384 x 384||
     162||Simulated time:||1h||
     163||CPU-time:||||
     164||Number of CPUs:||||
     165||Machine/ processor type:||IBM Regatta / Power 4||
     166||Visualization software:||DSVR||
     167\\
     168||||||='''Download'''  =||
     169||Video Format  ||File size  ||
     170||Flash (.flv)  ||  9.6mb||[[htdocs:gallery/movies/dust_devil.flv|Download]]  ||
     171||MPEG (.avi)   ||  9.7mb||[[htdocs:gallery/movies/dust_devil.avi|Download]]  ||
     172\\
     173}}}
     174
     175
     176\\
     177
     178||||='''3D view on moist convection (2001)''' =||
     179{{{#!td style="vertical-align:top; border: 0px solid"
     180{{{#!html
     181<embed
     182    type="application/x-shockwave-flash"
     183    id="player"
     184    name="player"
     185    src="http://palm.muk.uni-hannover.de/chrome/site/gallery/player.swf"
     186    width="512"
     187    height="408"
     188    allowfullscreen="true"
     189    flashvars="file=http://palm.muk.uni-hannover.de/chrome/site/gallery/movies/cbl5.flv&image=http://palm.muk.uni-hannover.de/chrome/site/gallery//movies/cbl5_preview.jpg"
     190/>
     191}}}
     192}}}
     193{{{#!td style="vertical-align:top; border: 0px solid""
     194'''Project:''' none\\
     195\\
     196'''Responsible:''' [[imuk/members/raasch|Siegfried Raasch]]\\
     197\\
     198'''Description:''' Particles are released near the surface. The particle color reflects the buoyancy at the current particle position (red: positive, blue: negative). The particle size is proportional to the magnitude of the vertical velocity component. The isososurfaces display areas with a liquid water content larger than 0.2 g/kg, i.e. cumulus clouds. The horizontal domain size in this simulation is too small in order to allow the development of the typical near-surface hexagonal flow pattern (see next two sequences).\\
     199||||='''Model Setup'''  =||
     200||Total domain size (x|y|z):||2000m x 2000m x 4638m||
     201||Grid spacing (x|y|z):||25m x 25m x 25m||
     202||Number of grid points (x|y|z):||80 x 80 x 80||
     203||Simulated time:||1h||
     204||CPU-time:||176h||
     205||Number of CPUs:||32||
     206||Machine/ processor type:||SGI Altix ICE at HLRN / Intel Xeon Gainestown||
     207||Visualization software:||DSVR||
     208\\
     209||||||='''Download'''  =||
     210||Video Format  ||File size  ||
     211||Flash (.flv)  ||  9.6mb||[[htdocs:gallery/movies/cbl5.flv|Download]]  ||
     212||MPEG (.avi)   ||  9.7mb||[[htdocs:gallery/movies/cbl5.avi|Download]]  ||
     213\\
     214}}}
     215
                                                                                                                                                                                                                                                                                                                                                                               
  | Impressum | ©Leibniz Universität Hannover |