in a project I have to program in an air system the amount of pressure loss in a valve to control the amount of air that will come out of the air duct. I don’t know how to start and I could use some kind of calculation in Dynamo. If someone can help me it would be great.
Hello and welcome to the forums.
You’re probably going to have to work out the details of what you need before anyone can help you. Depending on what data you have coming from the model and if it’s part of the system, you may be able to do this with just a formula or two in the family and skip Dynamo altogether.
Either way, we need a little more information (and effort) on what you have and what you need. If you can tell us what you need logically we can start to work out what that might look like in Revit and Dynamo.