Tor Harald Sandve
5cd7468b51
Start using the well model desribed in SPE 12259 "Enhancements to the Strongly Coupled, Fully Implicit Well Model: Wellbore CrossFlow Modeling and Collective Well Control" The new well model uses three well primary variables: (the old one had 4) 1) bhp for rate controlled wells or total_rate for bhp controlled wells 2) flowing fraction of water Fw = g_w * Q_w / (g_w * Q_w + q_o * Q_o + q_g + Q_g) 3) flowing fraction of gas Fg = g_g * Q_g / (g_w * Q_w + q_o * Q_o + q_g + Q_g) where g_g = 0.01 and q_w = q_o = 1; Note 1: This is the starting point of implementing a well model using denseAD The plan is to gradually remove Eigen from the well model and instead use the fluidState object provided by the Ebos simulator Note 2: This is still work in progress and substantial cleaning and testing is still needed. Note 3: Runs SPE1, SPE9 and norne until 950 days.
Open Porous Media Simulators and Automatic Differentiation Library 
CONTENT
opm-simulators contains simulator programs for porous media flow. It also contains a small library for automatic differentiation built on the Eigen linear algebra package which is used by many of the simulators to handle the building of Jacobians. The most important parts are:
- flow.cpp (a fully implicit black-oil simulator)
- AutoDiffBlock.hpp (class for AD on vectorized data with sparse jacobians)
LICENSE
The library is distributed under the GNU General Public License, version 3 or later (GPLv3+).
PLATFORMS
The opm-simulators module is designed to run on Linux platforms. It is also regularly run on Mac OS X. No efforts have been made to ensure that the code will compile and run on windows platforms.
REQUIREMENTS
opm-simulators requires opm-output, opm-core, and all their requirements (see opm-core/README). In addition, opm-simulators requires the Dune modue dune-istl and Eigen, version 3.1 (has not been tested with later versions).
DOWNLOADING
For a read-only download: git clone git://github.com/OPM/opm-simulators.git
If you want to contribute, fork OPM/opm-simulators on github.
BUILDING
See build instructions at http://opm-project.org/?page_id=36
DOCUMENTATION
Efforts have been made to document the code with Doxygen. In order to build the documentation, enter the command
make doc
in the topmost directory. The class AutoDiffBlock is the most important and most well-documented.
REPORTING ISSUES
Issues can be reported in the Git issue tracker online at:
https://github.com/OPM/opm-simulators/issues
To help diagnose build errors, please provide a link to a build log together with the issue description.
You can capture such a log from the build using the `script' utility, e.g.:
LOGFILE=$(date +%Y%m%d-%H%M-)build.log ;
cmake -E cmake_echo_color --cyan --bold "Log file: $LOGFILE" ;
script -q $LOGFILE -c 'cmake ../opm-core -DCMAKE_BUILD_TYPE=Debug' &&
script -q $LOGFILE -a -c 'ionice nice make -j 4 -l 3' ||
cat CMakeCache.txt CMakeFiles/CMake*.log >> $LOGFILE
The resulting file can be uploaded to for instance gist.github.com.