From 6de6f8e4c523324e0d9dbed5e13defb9eff0f71e Mon Sep 17 00:00:00 2001 From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d> Date: Wed, 7 May 2008 14:25:42 +0000 Subject: [PATCH] Use h3/h4 tags for headings, since higher tags are reserved for top-level headers. git-svn-id: https://svn.dealii.org/trunk@16043 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/examples/step-31/doc/intro.dox | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/deal.II/examples/step-31/doc/intro.dox b/deal.II/examples/step-31/doc/intro.dox index 733c64d08f..18c9dbb0df 100644 --- a/deal.II/examples/step-31/doc/intro.dox +++ b/deal.II/examples/step-31/doc/intro.dox @@ -1,7 +1,7 @@ <a name="Intro"></a> <h1>Introduction</h1> -<h2>The Boussinesq equations</h2> +<h3>The Boussinesq equations</h3> This program deals with an interesting physical problem: how does a fluid (i.e. a liquid or gas) behave if it experiences differences in @@ -108,7 +108,7 @@ earth's interior and surface structure. -<h2>%Boundary and initial conditions</h2> +<h3>%Boundary and initial conditions</h3> Since the Boussinesq equations are derived under the assumption that inertia of the fluid's motion does not play a role, the flow field is at each time @@ -130,7 +130,7 @@ boundary, or any number of other conditions that are physically reasonable. In this program, we will use no normal flux conditions. -<h2>Solution approach</h2> +<h3>Solution approach</h3> Like the equations solved in @ref step_21 "step-21", we here have a system of differential-algebraic equations (DAE): with respect to the time @@ -158,7 +158,7 @@ although we will have to make adjustments for the change in operator in the top-left corner of the differential operator. -<h3>Time stepping</h3> +<h4>Time stepping</h4> The structure of the problem as a DAE allows us to use the same strategy as we have already used in @ref step_21 "step-21", i.e. we @@ -191,7 +191,7 @@ advection is treated explicitly using the just-computed velocity field. -<h3>Weak form and space discretization</h3> +<h4>Weak form and space discretization</h4> Like solving the mixed Laplace equations, solving the Stokes equations requires us to choose particular pairs of finite elements for @@ -264,7 +264,7 @@ divergence-free: -<h3>Linear solvers</h3> +<h4>Linear solvers</h4> As explained above, our approach to solving the joint system for velocities/pressure on the one hand and temperature on the other is to use an -- 2.39.5