ECOTECT ANALYSIS ASSIGNMENT In order to start analyzing part of the Barcelona neighborhood La Sagrera, first I saved the Rhino file as DXF, but importing it into Ecotect it created problems because the buildings were transformed into lines not as surfaces. I, then, saved the Rhino file as 3DS which automatically saves the buildings as mashes, imported into Ecotect by changing the scale into Import manager from meters to millimeters, and using Modify> Purge coincident triangles I made the file easy to work with.
The next step was uploading the Barcelona weather file.
1.
Shadows and overshadowing To have the shadows of the buildings, I only used Display> Shadows (or simply by using the f10 button). It gives the shadows in specific time and period of the year. In my case it was on the 1st of April, at 13:00. By clicking on Shadows settings> Shadow display> Daily sun path, I was able to manually move the sun during the same day and see how the shadow is changing. By clicking on Shadow range>Show shadow range I was able to see the whole shadow range during the day.
2.
1st of April shadow range
SHADOWS
SHADOWS
1st of April daily sun path
SHADOWS
1st of April 13:00
RESULT:
Solar analysis
SOLAR ANALYSIS
on large surfaces
For the solar analysis on a bigger area I first selected some srfaces of the buildings, and by pressing Ctrl+F9 I checked if the surface normals are pointing outside of the building. Next step is getting into the Solar Access Analysis from the Calculate menu and going through the 7steps, where in the step4 I only used the selected objects. It gave me the solar insolation of the whole surfaces.
SOLAR ANALYSIS
on subdivided surfaces visualize
SOLAR ANALYSIS
on subdivided surfaces 3d editor
For getting more precise information for the insolation of the facades I selected one facades and by choosing the Surface subdivision> Rectangular tiles from the Modify menu I divided the faรงade and go through same process as I did for the bigger areas.
on grid top view
SOLAR ANALYSIS
The Solar analyses on grid starts with the Display Analysis grid from the Analysis grid menu on the right side of the window and setting the grid around the selected objects- in my case all of the buildings. I went to the same procedure in the Solar Access Analysis, only in the step4 I chose the Analysis grid (insolation only), first without and then with the full 3D extends- but on a smaller area since it takes too much time to render.
on grid perspective
SOLAR ANALYSIS
on grid 3d extends
SOLAR ANALYSIS
on grid 3d extends
SOLAR ANALYSIS 3.
Spatial Visibility Analysis
visualize
SPATIAL VISIBILITY S
selected surface
SPATIAL VISIBILITY S
For the spatial visibility I set the grid first around the selected buildings, I selected one of the facades of the buildings and I chose the Space Visibility Analysis from the calculate menu and went through the 4 steps.
4.
Wind Analysis
WIND ANALYSIS
autofiting the grid
In order to start with the wind analysis I first copied the WinAir file into the C drive. Then using Preferences, under the 3rd party tool I checked the AirWin4 Application and clicked to Apply to All Sessions. The next step is setting the grid, using the 3D Air flow from the Auto-Fit grid to objects and adjusting it manually around all the objects. In the grid menu I checked the CFD Cell Blockage and perform the calculation using Covered in Z. Next step is Exporting the WinAir4 (CFD) from Export Manager, inserting the parameters settings changing the speed into 7.00m/s, changing the direction randomly, and checking the Run WinAir Application, Auto-start calculation and Equalize Air flows. In the Grid Manager I checked the Load CFD Data and loaded the Output, selecting it as a new file. I used the Flow vector and the Air Flow Rate to see tha changes.
air flow rate
WIND ANALYSIS
flow vector
WIND ANALYSIS