commit 90a0d0a24994db6f41bb35809a3474e6f295086c
parent b48af16152457ed885860f82ec3c1ffe2de8cf61
Author: Vincent Forest <vincent.forest@meso-star.com>
Date: Thu, 19 May 2022 15:25:45 +0200
htrdr: add images to the urban mod
Diffstat:
3 files changed, 59 insertions(+), 18 deletions(-)
diff --git a/htrdr/mods/Ebudget_Streetcanyon_Broadband.svg b/htrdr/mods/Ebudget_Streetcanyon_Broadband.svg
@@ -0,0 +1 @@
+#$# git-wad 4f01c41f195f3c486c58e5617b4d55e609ad8d9e7961e36dab7d74e1c8e3b8d7 112397
+\ No newline at end of file
diff --git a/htrdr/mods/MRT_map_icif_district_day.svg b/htrdr/mods/MRT_map_icif_district_day.svg
@@ -0,0 +1 @@
+#$# git-wad 0d784883573ec9f6807004c2eee253d09959c61cd61e5dc8d256717503de163c 210511
+\ No newline at end of file
diff --git a/htrdr/mods/htrdr-urban.html.in b/htrdr/mods/htrdr-urban.html.in
@@ -1,29 +1,66 @@
<h2 id="urban"><code style="color: #000000">htrdr</code> Urban</h2>
-<div class="news">
- <ul>
- <li><a href="https://gitlab.com/edstar/htrdr/-/tree/main_urban">Git</a>
- repository</li>
- </ul>
+<div class="img" style="width: 20em">
+ <a href="mods/Rendering_icif_district_spp200.jpg">
+ <img src="mods/Rendering_icif_district_spp200.jpg" alt="icif_district">
+ </a>
+ <div class="caption">
+ Fig. 1 - Rendering in the visible part of the solar spectrum of a
+ procedurally generated dense mid-rise city. The number of pixels is 1500x800,
+ the vertical field of view 70°, and the number of samples per pixel 200.
+ </div>
</div>
<p>The <code>htrdr</code> Urban program is a fork of <code>htrdr</code> 0.6.1
that simulates radiative transfer in scenes composed of an atmospheric gas
mixture, clouds, and a ground with buildings and vegetation. In addition of
-<b>visible or infrared rendering</b> of scenes and calculation of <b>solar or
-ifrared irradiation</b>, <code>htrdr</code> Urban adds the calculation of
-<b>radiative flux density</b> incident on or absorbed by a group of triangles
-belonging to the ground geometry (e.g. building, walls, windows, roofs,
-<i>etc.</i>).</p>
+<b>visible or infrared rendering</b> of virtual scenes and calculation of
+<b>solar or ifrared irradiation</b>, <code>htrdr</code> Urban adds the
+calculation of <b>radiative flux density</b> incident on or absorbed by a group
+of triangles belonging to the ground geometry (e.g. building, walls, windows,
+roofs, <i>etc.</i>). Visit the project repository for more information about
+this modification (features, installation process, use case, <i>etc</i>).
-<div class="img" style="width: 20em">
- <a href="mods/Rendering_icif_district_spp200.jpg">
- <img src="mods/Rendering_icif_district_spp200.jpg" alt="icif_district">
- </a>
- <div class="caption">
- Rendering in the visible part of the solar spectrum of a procedurally
- generated dense mid-rise city. The number of pixels is 1500x800, the vertical
- field of view 70°, and the number of samples per pixel 200.
+<p>The following figures illustrate some of the results obtained with
+<code>htrdr</code> Urban.</p>
+
+<div style="display: inline-block;">
+ <div style="float: left; width: 22em; margin-right: 1em;">
+ <a href="mods/Ebudget_Streetcanyon_Broadband.svg">
+ <img src="mods/Ebudget_Streetcanyon_Broadband.svg" alt="ebudget">
+ </a>
+ <div class="caption">
+ Fig. 2 - Solar radiation budget of infinitely-long street canyon
+ geometries with different aspect ratios (building height divided by street
+ width) simulated with htrdr-urban (MC) and the Town Energy Balance (TEB),
+ which calculates radiative exchange with the radiosity method. The
+ radiation budget consists of the reflected radiation (UP) and the radiation
+ absorbed by the roof (ABS_ROOF), walls (ABS_WALL), and road (ABS_ROAD). All
+ terms have been normalized with the downwelling solar radiation. The plane
+ area building density is 0.5. All surfaces have a Lambertian broadband
+ albedo of 0.5. (left) The downwelling solar radiation consists of only
+ direct radiation. (right) The downwelling solar radiation consists of
+ isotropic diffusive radiation.
+ </div>
+ </div>
+
+ <div style="float: left; width: 26em;">
+ <a href="mods/MRT_map_icif_district_day.svg">
+ <img src="mods/MRT_map_icif_district_day.svg" alt="MRT_day">
+ </a>
+ <div class="caption">
+ Fig. 3 - (left) Spatial distribution (1 m resolution) of the
+ Mean Radiant Temperature (MRT) in a compact mid-rise urban district of
+ 800 m x 800 m horizontal extent during the daytime. A
+ rendering of the district is shown in Fig. 1. The solar elevation angle
+ is 50° and the sky is clear. The sun is located in the west of the
+ district (it shines from left to right) leading to low MRT due to shading on
+ the right of the buildings and high MRT due to reflected solar radiation on
+ the left of the buildings. The temperature of all surfaces is 295 K. The
+ white colour depicts the built areas for which the outdoor MRT is not
+ defined. (right) Standard deviation of the MRT displayed in (left) calculated
+ by the Monte-Carlo method.
+ </div>
</div>
</div>