ed02b4a91f
The simulator now handles live gas as well as live oil. The primary variables are Po,Sw and Rs,Rv or Sg depending on fluid condition State 1 Gas only (Undersaturated gas): Po, Sw and Rv State 2 Gas and oil: Po, Sw and Sg State 3 Oil only (Undersaturated oil): Po, Sw and Rs This commit includes: 1. New interfaces for the vapor oil/gas ratios (Rv) 2. Modifications in the equations to handle rvs 3. New definition of ADI variable to handle changing primary variables 4. Modifications in the solution updates to handle changing primary variable 5. Some changes in the appleyard process to sync with Mrsts livegas implementation. NOTE: The implementation is tested on the liveoil cases SPE1 and a simplified SPE9 and produces the same results as the old code. The simulator is not yet able to converge on SPE3 with livegas present. For SPE3 to converge a more robust well implementation is needed. The current simulator reproduce the results of Mrst when a similar well model is used in Mrst as is currently implemented OPM.
Open Porous Media Automatic Differentiation Library
CONTENT
opm-autodiff contains a small library for automatic differentiation built on the Eigen linear algebra package. It also contains some experimental solver and simulator prototypes demonstrating how it can be used. The most important parts are:
- AutoDiffBlock.hpp (class for AD on vectorized data with sparse jacobians)
- AutoDiffHelpers.hpp (various utilities to simplify writing solvers)
- sim_fibo_ad.cpp (prototype fully implicit black-oil simulator)
LICENSE
The library is distributed under the GNU General Public License, version 3 or later (GPLv3+).
PLATFORMS
The opm-autodiff 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-autodiff requires opm-core, and all its requirements (see opm-core/README). In addition, opm-autodiff requires Eigen, version 3.1 (has not been tested with later versions).
DOWNLOADING
For a read-only download: git clone git://github.com/OPM/opm-autodiff.git
If you want to contribute, fork OPM/opm-autodiff on github.
BUILDING
See build instructions in opm-core/README, or at http://opm-project.org/download.php.
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-autodiff/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.