week 5 Detailed assessment of energy efficiency dominant wind direction
wind shadow casting
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
wsw
wsw
wsw
nsw
w
wsw
wsw
wsw
wsw
wsw
wsw
sw
design with the wind In order to face with wind study is to measure the statistic from 21st June until 21 December of particular year which is during summer and winter. Following that, between June and December, read the wind direction. The wind direction is frequently west-southwest until December, when it turns to southwest. In term of windrose is to get the information data of direction, velocity and frequency attached in figure 5.2.
13-41km/h 37%
bN
NW
NbW
NW
Figure 5.4
Wind Shadow in December
low air circulation
Configuration of Wind Shadow
NE
EbN
WbS
EbS SE
bW
bE
S
SbE
b SE
bS
SW
The wind shadow is gathering data on low air circulation due to low wind pressure. Consideration wind shadow study in June dropped and faced towards east side as the wind direction comes from west-southwest. Meanwhile, in December express the wind shadow up to the north side. However it might effect the site alteration from the southeast site context which take into account the wind shadow filled the site directly wind direction from southwest.
Furthemore, the site in December recieved more low air circulation which might give opportunities as well as sensitives in term of land use and environment towards users. However the A building is protected from winter wind issued by the vegetation at the courtyard which bring the cold wind upward to the site.
bE
bW
WbN
SW
Figure 5.2 Wind Frequency and Velocity data
sw
legend Summer wind Winter wind Shadow guideline Wind Shadow The A Building
breeze
13-41km/h 30%
Figure 5.5
NbE
2-13km/h 54%
NE bN
2-13km/h 64%
wsw
light
0-2km/h 9%
dec
and
dec
0-2km/h 5%
Wind Shadow in June
Fill the wind shadow by aligning the wind direction beside the building from side to side and using a tangent line as a reference to loop the tangent line to show the shadow.
SbW
june
june
calm
Frequency velocity
Figure 5.3
Figure 5.1
Wind Rose and Wind direction data
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