#5 Wind Speed Profiles in Ladybug - Ultimate Ladybug Course - LBT 1.6

Ladybug is an open-source plugin for the Grasshopper visual programming environment that provides tools for environmental analysis and simulation. One of the key features of Ladybug is the ability to perform wind speed adjustments for outdoor wind analysis.
When performing outdoor wind analysis, it is important to account for the effect of buildings and other obstacles on wind speed and direction. Ladybug's wind speed adjustment feature allows users to adjust the wind speed based on the height and location of the analysis point, as well as the surrounding buildings and terrain.
The wind speed adjustment feature in Ladybug is based on the concept of wind profiles, which describe how wind speed and direction change with height above the ground. Ladybug uses a simplified version of the logarithmic wind profile, which assumes that wind speed increases logarithmically with height up to a certain height, known as the roughness height. Above the roughness height, wind speed is assumed to be constant.
To perform a wind speed adjustment in Ladybug, users specify the height of the analysis point above ground level, as well as the roughness height and surrounding buildings and terrain. Ladybug then uses the logarithmic wind profile to calculate the expected wind speed at the analysis point, based on the wind speed at a reference height and the roughness height. The wind speed adjustment factor is then calculated as the ratio of the expected wind speed to the measured wind speed at the reference height.
The wind speed adjustment factor can be used to adjust the wind speed for the analysis point, taking into account the effects of surrounding buildings and terrain. This adjustment is particularly important for wind-sensitive applications, such as natural ventilation and wind energy, where accurate wind speed data is critical.
The wind speed adjustment feature in Ladybug is flexible and customizable, allowing users to specify a range of input parameters, such as the reference height, roughness height, and surrounding building and terrain information. Ladybug also provides a range of visualization tools to help users understand and interpret wind speed data, such as wind rose diagrams and animated wind vectors.
In summary, the wind speed adjustment feature in Ladybug provides a powerful tool for outdoor wind analysis, allowing users to account for the effects of surrounding buildings and terrain on wind speed and direction. With this feature, Ladybug enables accurate and reliable analysis for a range of wind-sensitive applications, supporting sustainable and energy-efficient design.
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[@beomsukim4568]

I've looked at a number of wind analyses using Ladybug, and it's difficult to follow them step by step from the beginning because they all show only the details without showing the overall flow. I'd like you to show me the overall composition of the grashopper or upload a file. I don't know how the beginning part was structured.

[@PhilippGalvanDesign]

This video is part of a series: You might want to follow the playlist kzbin.info/aero/PL4Rc2GtLpcNWBnE9B_tj36rtQDVFuPzUu

[@beomsukim4568]

@@PhilippGalvanDesign Thanks for the instruction!

[@akilmansuri6074]

Hi i have doubt in wind speed i am doing my research on high rise apartments Building through generative approach so where can i share script and photo of wind analysis optimisation doubt

[@PhilippGalvanDesign]

You can send me an email to [e-mail] with your script and screenshot.

[@mgdiaz8092]

Hi Philipp, I found your channel a few days ago and it's great, I'm following your tutorials and everything's working. Thank you and congrats for your work. Just a very little issue I just got into, the LB Monthly Chart doesn't allow me to connect the hourly_heat and the hourly_cool data at the same time, when I connect the second one, the first one gets disconnected, only one at a time. I searched but couldn't find the problem, do you have any idea? Thanks in advance!

[@mgdiaz8092]

Hi, just figured it out while watching another of your videos, just needed to press and hold Shift :)

[@PhilippGalvanDesign]

Great! Thanks for letting me know