30        out.addField(out.problem().gridGeometry().coordinationNumber(), 
"coordinationNumber", 
Vtk::FieldType::vertex);
 
   34        out.addVolumeVariable([](
const auto& volVars){ 
return volVars.poreInscribedRadius(); }, 
"poreInscribedRadius");
 
   38        out.addFluxVariable([](
const auto& fluxVars, 
const auto& fluxVarsCache)
 
   39                             { 
return fluxVarsCache.throatInscribedRadius(); }, 
"throatInscribedRadius");
 
   41        out.addFluxVariable([](
const auto& fluxVars, 
const auto& fluxVarsCache)
 
   42                             { 
return fluxVarsCache.throatLength(); }, 
"throatLength");