LB UTCI Comfort & HB UTCI Comfort - Probe points for CFD results / Custom Recipe

I’ve been using the LB UTCI Comfort component for outdoor UTCI runs, and recently got access to SIMScale to run our CFD analysis…

I’d love to be able to run the UTCI calcs with localized wind conditions on pollination. The HB UTCI recipe doesn’t seem to accept local wind speeds for each test point, rather wind speeds for each hour of the simulation period. First thought was to repeat east test point value for the number of hours of analysis, will the Pollination recipe accept this?

I also found this discussion regarding the honeybee component, but not sure if that has opened up in the pollination recipe: UTCI. Accounting for both external glazing and point-by-point wind speeds - ladybug-tools - Ladybug Tools | Forum

Any recommendations on how to accomplish this? Has anyone created a pollination equivalent for this component? Creating my own recipe seems out of my league at the moment. Is there still plans for a web based recipe builder?


Hi @jakechevriersg, we continued the conversation with the SimScale team and we’re in the process of building an App for this purpose.

That sounds great! Looking forward to seeing that…

In the meantime, it would still be worthwhile to add the Ladybug UTCI recipe or expose the local wind conditions feature on the HB UTCI recipe for others without access to SimScale (aka butterfly users :slight_smile:

Thanks again for such a great platform!

This is supported on the latest version of the recipe. You’ll see that there’s an air-speed-matrices input that is intended for the purpose of specifying detailed air speeds from CFD:

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amazing, thank you for opening this up!

I tried to run a test run (as i have not used the HB equivalent of this recipe before, only the LB workflow), and I started without wind speeds. Unfortunately, I couldn’t get that to run and I’m coming up with this error…

Object reference not set to and instance of an object.

I’ll include my definition here… Frankly, it could be completely wrong for this type of study, but I’m going off of other peoples examples I’ve seen in the past.

Any suggestions would be very much appreciated! (58.7 KB)

Also tried to troubleshoot by using a different recipe… recipe works, but now the pollinate component doesnt…

Hi @jakechevriersg, for the second error you only need to try to login again.

I leave the first one to @chriswmackey to check the definition.

This was a bug that I reported to @mingbo ~4 weeks ago, which he has told me he had fixed around April 1st.

Are you using the latest version of the Pollination Grasshopper plugin, @jakechevriersg ?

If you are and this bug is back somehow, then @mingbo will know the best way to address it. FYI, @mostapha here is a link to the archived issue on Basecamp where we previosly addressed this.

Hi, @jakechevriersg, can you right-click on the component and see what’s the version of the component? If you are using an older version then try to install the latest version of the plugin and try again.

Hi @mostapha… today downloaded and installed the latest version from the website. I am now getting notifications when starting grasshopper:

component ID conflicts for ladybug components:

i hit replace all…

Was the installation location for ladybug changed? It seems i need to get rid of the old version?

thanks again!

Uninstalled all of my Ladybug and Pollination components, then reinstalled with the pollination package so i got it running, i would like to know what happened though, since im sure i’ll get questions about this in the firm…

New issues arise with the download weather component, fed in local files for now…

And then the run failed at the very end… seems like it had trouble with honeybee-vtk… do you think this is on my end? or with the recipe?

Hi @jakechevriersg,

The new installer is supposed to remove the old version by running the following command. Could you try to run this command manually to see if it works? If it doesn’t, then it’d be a question for @chriswmackey to double check.
"C:/Program Files/ladybug_tools/python/python.exe" -m ladybug_rhino remove-gh-components

Thanks @jakechevriersg for reporting the issues, I think the both issues are for @chriswmackey.

A post was split to a new topic: Ladybug_FalseStart from Ironbug is missing

What is the weather URL that you are trying to download? It might be because the URL is not valid anymore.

It is on us, and a bit strange! I will have a look and will ask @devang for help if I can’t figure it out. Here is the link to the run.

@mostapha, this is just a matter of updaing honeybee-vtk. I can do it.

2 posts were split to a new topic: Error with LB Download weather component after using the Pollination installer