From 3de9d48c5c88c0b553ac112033362005d50fbb08 Mon Sep 17 00:00:00 2001 From: kronbichler Date: Tue, 28 Oct 2008 14:33:16 +0000 Subject: [PATCH] Comment the output strategy when using the new time stepping. git-svn-id: https://svn.dealii.org/trunk@17368 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/examples/step-31/step-31.cc | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/deal.II/examples/step-31/step-31.cc b/deal.II/examples/step-31/step-31.cc index dcbdedafee..3724149038 100644 --- a/deal.II/examples/step-31/step-31.cc +++ b/deal.II/examples/step-31/step-31.cc @@ -2427,6 +2427,19 @@ void BoussinesqFlowProblem::output_results () const // the relation between global vector and // local dofs looks like on the present // cell, which concludes this tedious work. + // + // There's one thing worth remembering + // when looking at the output: In our + // algorithm, we first solve for the + // Stokes system at time level n-1 + // and then for the temperature at time + // level n. These are the two + // components we join for output, so what + // one is going to look at has this + // little misalignment. Since output is + // only a qualititative mean anyway, we + // can ignore this $\mathcal{O}(h)$ + // error. { std::vector local_joint_dof_indices (joint_fe.dofs_per_cell); std::vector local_stokes_dof_indices (stokes_fe.dofs_per_cell); -- 2.39.5