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Timestepper based on userInput

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A new timestepper that reads timesteps from a file generated using
ecl_summary "DECK" TIME
and applies it to the simulator

Also a parameter timestep.initial_step_length (default 1 day) is added
to controll the frist timestep.
This commit is contained in:
Tor Harald Sandve
2016-09-21 09:39:36 +02:00
parent fe53c5f917
commit 380fe6e2fd
4 changed files with 70 additions and 10 deletions
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opm/simulators/timestepping/TimeStepControl.cpp
+39 -4
View File
@@ -23,6 +23,9 @@
#include <cmath>
#include <iostream>
#include <stdexcept>
#include <string>
#include <fstream>
#include <iostream>
#include <opm/common/ErrorMacros.hpp>
#include <opm/core/utility/Units.hpp>
@@ -55,7 +58,7 @@ namespace Opm
}
double SimpleIterationCountTimeStepControl::
computeTimeStepSize( const double dt, const int iterations, const RelativeChangeInterface& /* relativeChange */ ) const
computeTimeStepSize( const double dt, const int iterations, const RelativeChangeInterface& /* relativeChange */, const double /*simulationTimeElapsed */) const
{
double dtEstimate = dt ;
@@ -74,6 +77,38 @@ namespace Opm
return dtEstimate;
}
////////////////////////////////////////////////////////
//
// HardcodedTimeStepControl Implementation
//
////////////////////////////////////////////////////////
HardcodedTimeStepControl::
HardcodedTimeStepControl( const std::string filename)
{
std::ifstream infile (filename);
double time;
std::string line;
std::getline(infile, line); //assumes two lines before the timing starts.
std::getline(infile, line);
while (!infile.eof() ) {
infile >> time; // read the time in days
std::string line;
std::getline(infile, line); // skip the rest of the line
timesteps_.push_back( time * unit::day );
}
}
double HardcodedTimeStepControl::
computeTimeStepSize( const double /*dt */, const int /*iterations */, const RelativeChangeInterface& /* relativeChange */ , const double simulationTimeElapsed) const
{
auto nextTime = std::upper_bound(timesteps_.begin(), timesteps_.end(), simulationTimeElapsed);
double dtEstimate = (*nextTime - simulationTimeElapsed);
return dtEstimate;
}
////////////////////////////////////////////////////////
@@ -90,7 +125,7 @@ namespace Opm
{}
double PIDTimeStepControl::
computeTimeStepSize( const double dt, const int /* iterations */, const RelativeChangeInterface& relChange ) const
computeTimeStepSize( const double dt, const int /* iterations */, const RelativeChangeInterface& relChange, const double /*simulationTimeElapsed */) const
{
// shift errors
for( int i=0; i<2; ++i ) {
@@ -141,9 +176,9 @@ namespace Opm
{}
double PIDAndIterationCountTimeStepControl::
computeTimeStepSize( const double dt, const int iterations, const RelativeChangeInterface& relChange ) const
computeTimeStepSize( const double dt, const int iterations, const RelativeChangeInterface& relChange, const double simulationTimeElapsed ) const
{
double dtEstimate = BaseType :: computeTimeStepSize( dt, iterations, relChange );
double dtEstimate = BaseType :: computeTimeStepSize( dt, iterations, relChange, simulationTimeElapsed);
// further reduce step size if to many iterations were used
if( iterations > target_iterations_ )