[Gmsh] Heat flux line

[Hamid Badi]

Hi everybody,

I'm looking for a way (plugin maybe) to plot the heat flux line (known as 
the orthogonal isovalue line) and to prescribe the distances between the 
lines (for a thermal problem, the distance unit is W/m). 

May the heat flux lines be viewed as the isovalues lines of a scalar field 
(may be the magnitude flux) ?

Best regards.
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