From 8a926c77fe2bcdaf9d306f19e91fec1f312c8aab Mon Sep 17 00:00:00 2001
From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Wed, 6 Jun 2012 14:08:38 +0000
Subject: [PATCH] Announce step-43.

git-svn-id: https://svn.dealii.org/trunk@25607 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/doc/news/changes.h |  9 +++++++--
 deal.II/doc/news/news.html | 14 ++++++++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/deal.II/doc/news/changes.h b/deal.II/doc/news/changes.h
index 62b37298a7..f05035c3d3 100644
--- a/deal.II/doc/news/changes.h
+++ b/deal.II/doc/news/changes.h
@@ -47,6 +47,12 @@ used for boundary indicators.
 
 
 <ol>
+<li>
+New: step-43 is an extension of step-21 that shows efficient methods
+to solve multi-phase flow.
+<br>
+(Chih-Che Chueh, Wolfgang Bangerth, 2012/06/06)
+
 <li>
 New: step-15 has been replaced by a program that demonstrates the
 solution of nonlinear problem (the minimal surface equation) using
@@ -54,7 +60,6 @@ Newton's method.
 <br>
 (Sven Wetterauer, 2012/06/03)
 
-
 <li>
 New: step-48 demonstrates the solution of a nonlinear wave equation
 with an explicit time stepping method. The usage of Gauss-Lobatto
@@ -208,7 +213,7 @@ enabled due to a missing include file in file
 <h3>Specific improvements</h3>
 
 <li> New: The finite element type FE_DGQArbitraryNodes is now
-working also in codimension one spaces. 
+working also in codimension one spaces.
 <br>
 (Luca Heltai, Andrea Mola 2012/06/06)
 
diff --git a/deal.II/doc/news/news.html b/deal.II/doc/news/news.html
index 0642179bd5..4c0b4cc0ee 100644
--- a/deal.II/doc/news/news.html
+++ b/deal.II/doc/news/news.html
@@ -32,6 +32,20 @@
     <a href="../doxygen/deal.II/changes_after_7_1.html">here.</a></p>
 
     <dl>
+      <dt>
+        <strong>2012/06/06: step-43 &mdash; an efficient solver for
+        two-phase flow</strong>
+      </dt>
+      <dd>
+        The step-21 tutorial program was the first program in the
+        deal.II tutorial to demonstrate the solution of two-phase flow
+        problems, but it suffered from the fact that it was very
+        slow. step-43 demonstrates some of the techniques that can be
+        used to make solvers for such problems more efficient and
+        accurate.
+      </dd>
+
+
       <dt>
         <strong>2012/06/03: New step-15</strong>
       </dt>
-- 
2.39.5