Changes between Version 15 and Version 16 of gallery/movies/forest

Timestamp:

Jun 24, 2014 5:08:00 PM (11 years ago)

Author:

knoop

Comment:

--

gallery/movies/forest

@@ -2 +2 @@
 [[TracNav(gallery/toc)]]
 ||||='''First sequence (2013)''' =||
-{{{#!td style="vertical-align:top; border: 0px solid"
+{{{#!td rowspan=40 style="vertical-align:top; border: 0px solid"
 {{{#!html
 <iframe width="560" height="315" src="//www.youtube.com/embed/NClfGdfwWTA" frameborder="0" allowfullscreen></iframe>
 }}}
-\\
-\\
 ||||='''Model Setup'''  =||
 ||Total domain size (x|y|z):||2304m x 1152m x 384m||
@@ -30 +28 @@
 The approaching flow is turbulent with different scales of turbulence being randomly distributed. Entering the forest volume, the flow is decelerated and turbulence is efficiently damped by the forest drag. Above the forest, turbulence is effectively generated due to the strong velocity shear near the forest top.
 With increasing distance from the forest edge, the developing turbulence structures grow in size and strength, forming a layer of high turbulence activity, within the flow adjusts to the new surface conditions. This layer represents an internal boundary layer.\\
-
-||||||='''Download'''  =||
-||Video Format  ||File size  ||
-||Flash (.flv)  || 6.0mb||[[http://palm.muk.uni-hannover.de/raw-attachment/wiki/gallery/movies/forest/forest_rotation.flv|Download]] (3D)  ||
-
-{{{#!comment
-||MPEG (.avi)   || 7.8mb||[[htdocs:gallery/movies/forest1.avi|Download]] (3D)  ||
-}}}
-\\
 }}}
 
@@ -46 +35 @@
 <iframe width="560" height="315" src="//www.youtube.com/embed/ooqfh5rxtuY" frameborder="0" allowfullscreen></iframe>
 }}}
-\\
-\\
 ||||='''Model Setup'''  =||
 ||Total domain size (x|y|z):||2304m x 1152m x 384m||
@@ -69 +56 @@
 
 A region of tracer accumulation can be detected inside the forest, at a certain distance from the forest edge. This localized accumulation can be attributed to the horizontal convergence of the flow, resulting from the flow deceleration inside the forest. A reversed flow is even visible in this area, which enhances the convergence effect. Such a flow reversion sets up in dense forests, where the strong streamwise flow deceleration leads to a strong upward mass transport and hence creates a low pressure zone inside the forest. This in turn forces the flow to recirculate in order to compensate the mass loss. Looking at the tracer concentration reveals that the tracer distribution is fairly variable downstream of a forest edge, same as the tracer transport between forest and atmosphere. This adds high complexity to the interpretation of concentration and flux measurements near forest edges.\\
-
-||||||='''Download'''  =||
-||Video Format  ||File size  ||
-||Flash (.flv)  || 6.0mb||[[http://palm.muk.uni-hannover.de/raw-attachment/wiki/gallery/movies/forest/forest_scalar.flv|Download]] (3D)  ||
-
-{{{#!comment
-||MPEG (.avi)   || 7.8mb||[[htdocs:gallery/movies/forest_scalar.avi|Download]] (3D)  ||
 }}}
-\\
-}}}