normalization tgv error with anlytical

Author: carlodev

src/Commons/ExportUtility.jl

@@ -456,8 +456,8 @@ function compute_error(simcase::TaylorGreen{Periodic}, params::Dict{Symbol,Any},
     ep = ph_analytic - ph #error pressure
 
     #L2 norm error velocity and pressure
-    l2eu = sqrt(sum(∫(eu ⋅ eu) * dΩ)) ./sqrt(sum(∫(uh ⋅ uh) * dΩ))
-    l2ep = sqrt(sum(∫(ep * ep) * dΩ)) ./ sqrt(sum(∫(ph ⋅ ph) * dΩ))
+    l2eu = sqrt(sum(∫(eu ⋅ eu) * dΩ)) ./sqrt(sum(∫(uh_analytic ⋅ uh_analytic) * dΩ))
+    l2ep = sqrt(sum(∫(ep * ep) * dΩ)) ./ sqrt(sum(∫(uh_analytic ⋅ uh_analytic) * dΩ))
 
     ALLOWED_EXPORTS = ["VelocityError", "PressureError"]
     selected_exports = intersect(ALLOWED_EXPORTS, simcase.simulationp.exportp.extra_export)