User Forum of Software BASEMENT

ClaireGilder

User

From: Missoula, Montana, US

Registered: 2023-11-19

Posts: 6

Normal vectors in setup file

I am attempting to interpret the normal vector data provided in Setup.h5 > EdgesAll > NormVect.

The columns appear to be each node in the mesh, but are the rows (labeled 0 & 1) the X Y components of the normal unit vector for that node? Are these vectors normal to the mesh surface (topography)? Are they calculated based on the slope between each cell connected to that node, or is there some other method?

Thanks for any clarity you can provide!

Claire

Lukas Vonwiller

Developer

Registered: 2014-09-04

Posts: 151

Re: Normal vectors in setup file

Hi Claire

EdgesAll > NormVect is the normal unit vector to the edges (not the nodes) of the triangular mesh. The normal unit vector is used internally to determine the flow over an edge. In the setup.h5 there is mainly data defined to setup the simulation internally. In most cases, this data is irrelevant to users.

Hope this helps!
Br, Lukas

ClaireGilder

User

From: Missoula, Montana, US

Registered: 2023-11-19

Posts: 6

Re: Normal vectors in setup file

Thanks for the clarification!