From ac4e963292776623cfe65e6213e8a4b66bbf5bf5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20He=C3=9F?= <rene.hess@iwr.uni-heidelberg.de>
Date: Wed, 8 Nov 2017 09:57:41 +0100
Subject: [PATCH] Add documentation
---
test/navier-stokes/howto/taylor-green.cc | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/test/navier-stokes/howto/taylor-green.cc b/test/navier-stokes/howto/taylor-green.cc
index d88bf544..218947d3 100644
--- a/test/navier-stokes/howto/taylor-green.cc
+++ b/test/navier-stokes/howto/taylor-green.cc
@@ -254,9 +254,9 @@ void taylor_green (const GV& gv, const Dune::ParameterTree& configuration, std::
while (time < time_end - dt_min*0.5){
osm.apply(time,dt,xold,x);
- // Correct pressure after each step. Implementation not suited for
- // parallel computations so it's turned off for periodic boundary
- // conditions.
+ // Correct pressure after each step. Without this pressure
+ // correction the velocity will be ok but the pressure will be
+ // shifted by a constant.
Dune::PDELab::integrateGridFunction(pdgf,pressure_integral,2);
pressure_integral = gv.comm().sum(pressure_integral);
std::cout << gv.comm().rank() << " palpo pressure_integral before: " << pressure_integral << std::endl;
--
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