[Ahmed Khattab]

Hi Foamers,

in order to perform a mesh independence study, it is mandatory to use two meshes at least with different spacing, then compare one field or more through the different grids.

my questions is how to get the values of a specific field at a specific point in the two grids specially if the grids are not halved/doubled (ex: h2/h1 =1.5).

thanks,

[anuragm]

Originally Posted by Ahmed Khattab

my questions is how to get the values of a specific field at a specific point in the two grids specially if the grids are not halved/doubled (ex: h2/h1 =1.5).

I do not know the right solution for this as well but how about comparing the interpolated values at this specific point using values at neighboring nodes? Any kind of interpolation would work as long as the definition is consistent across different mesh sizes.

Or perhaps you could look into a more sophisticated method like the Richardson method
https://www.grc.nasa.gov/www/wind/va.../spatconv.html