do have the longitude/latitude location and I also have an hour by hour direct solar radiation values given in W/m^2. So I can generate a solar path and I know the direct radiation. I feel like this should be enough data to carry out a radiation analysis but I can't figure out how to do this be I am unsure how to generate a sky matrix from his data. I was thinking maybe I can create my own custom sky matrix? Or generate an .epw file (Although I have no clue on how to do either of these)?
Given the data that I have (direct solar radiation and location) how can I use the radiation analysis tool ?…
).
Other than a myriad posts related with the above fascinating plug-ins (search the Forum), have a look on this:
http://www.grasshopper3d.com/forum/topics/cytoskeleton-vs-exoskelet...
For using these 3 in response to some "similar" user request (a bit complicated, mind especially with mesh simplification issues) see this: http://www.grasshopper3d.com/forum/topics/solid-model-to-voronoi
See this as well: http://www.grasshopper3d.com/forum/topics/radius-change-by-attracto...
And this: http://www.grasshopper3d.com/forum/topics/3d-voronoi-substraction-w...
Finally for "simplifying" meshes is worth giving MeshLab (free) a spin.…
ously accounts for the thermal resistance in solid conduction through the width of the material. U = R^(-1).... R= L / lambda-solid ( per unit area - m^2 K / W)
The boundary conditions are likely being considered for convection and radiative transfer. Esentially the U-Value as used in the building industry is a coupling for:
Solid Conduction = ( lambda-solid / Length )* (T1 -T2)
Radiative Transfer = (1- reflectance) (irradiance) ... this is a simplification, it can get super complex
Convective Transfer = hahaha I cannot remember this... but it's essentially (Tsurface - T1) / Convective Resistance.
I just want to reiterate that I am not certain of the calculations carried out in therm. However, I am confident that the U-value is a simplification that couples all thermal exchange mechanisms into the reciprocal of a single resistance. U = 1 / R-coupled.
Hope this helps,
Mauricio…
izes like 0.6m, 0.8m, 0.9m and 1.2m are the most "common": In cases where mechanical floors are a must (hospitals for instance) a 2.4/2.4 is quite handy (habitable/mechanical per floor). You can try 1.8/2.7 as well (floor/habitable) since 1.8 floor thickness can host HVAC and some decent W truss size. Also 1.6/2.4 (floor/habitable) is used in small buildings. NOTE: see next.
3. Don't forget to include corrugated metal height + concrete screed height + raised floors height: for the latter, say, something like 0.3m (modules + adjustable mounts + free space for electric stuff [boxes etc]).
4. As regards exteriors, Laurent Buzon is a close friend of mine. Contact him directly on my behalf:
http://www.buzonuk.com/
http://www.google.gr/url?sa=t&rct=j&q=&esrc=s&sourc...
5. LBS Structural ability and "monolithic" floor behavior (humans don't like vibrating habitable spaces) ARE not the same animal.…
e. What is the interesting thing with these? Well since are created by iterating trough the mesh faces (mesh face Normal * d + flip option ... etc etc) ... their enumeration (order) in the resulting wPtsList list ... is exactly the same with the enumeration (order) of the mesh Faces list.
2. So a ff connectivity Tree [Lord way or Sandbox] (where f(ace)-to-f(ace) actually means: neighbor faces(indices) that a given mesh face has) is the only thing that we need in order to achieve this type of "top" struts layout. Spot the extra crude List.Distinct().ToList() "clean" up method (but why bother? he he).
3. The other way ("top" layer struts - option: ballPivot) well ... it does the obvious.
…
o's command 'InterpCrv' manually(white line).
We had one need to make the rhino-InterpCrv curve in grasshopper.
One thing I've tried is using a python script to emulate the rhino-InterpCrv, but didn't get any results,since I didn't know how to define the arrCV1 and arrCVn1 when using the 'AddInterpCurve (knotstyle=1/2)'
knotstyle from the rhino IronPython help
knotstyle
Optional. Number. The knot style to use, and whether the curve should be periodic. If omitted, uniform knots (0) are created.
Value
Description
0
Uniform knots. Parameter spacing between consecutive knots is 1.0.
1
Chord length spacing. Requires dblDegree = 3 with arrCV1 and arrCVn1 specified.
2
Sqrt (chord length). Requires dblDegree = 3 with arrCV1 and arrCVn1 specified.
3
Periodic with uniform spacing.
4
Periodic with chord length spacing. Requires an odd degree value.
5
Periodic with sqrt (chord length) spacing. Requires an odd degree value.
did anyone tried to create a curve like native Rhino from script? or, is there a another GH component that is suitable for smooth curves?
I guess a alternative way will be using rs.Command('InterpCrv'), but wanted to know if there will be a smarter way...…
using the 2D one for now to save computing power. My issues are:
1. How to subdivide a non-rectilinear surface (curved or not) with equal spacing into rectilinear subdivisions, like what happens on most buildings? (What I'm doing now is to use a rectilinear surface (on the Default layer), subdivide it, then manually trim the CW panels.)
130918_tower%20paneling%20test.gh
2. Instead of just specifying the number of divisions in the U and V directions, can I also specify the distance b/w each sub-division?
Sorry I just realized my rhino file is too large to be attached here. If you want to see it, I can use drop-box or something. But the idea is the same regardless which rhino file we use.
Thank you!
Darren…
x 140: 10mm is the plate thickness, using relative coord 0,10,10 in the yz plane
Create a second closed boundary surface
Under intersect/sape/solid diff create the angle ready for baking
numerically the numbers are well, odd
Any help appreciated, i have been using all my fingers and toes to determine that the result thus far is pretty rubbish. I am sure there is a moderately simple explanation.
Oh if its really obvious please be gentle, I w=thought that this was a 2 minute def :(
regards
kenyon…
Added by Kenyon Graham at 3:37pm on December 25, 2015
ndering what number to assign to the "_U_Value" input of the EPWindowMat component. The Honeybee hint tells that it should represent the conductivity of the window in W/mK, and it refers to NFRC's U Factor under winter conditions.
On the other hand here NFRC defines: "U-factor indicates how much energy will be lost from a building through its windows by specifying how many BTUs can pass through one square foot of material in an hour." I'm a bit confused what unit and what number to assign.
2- By knowing a Summer U Value, is it possible to estimate the Winter one?
Best,
A…