OilfieldToolsNet/opm-common
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This commit is contained in:
Atgeirr Flø Rasmussen 2019-03-28 16:14:38 +01:00
parent 215af283e2
commit 322c6fb0ff
4 changed files with 37 additions and 33 deletions
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54
opm/material/common/UniformXTabulated2DFunction.hpp
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@ -44,16 +44,6 @@ namespace Opm {
/*!
* \brief Indicates how interpolation will be performed. Normal interpolation
* is done by interpolating vertically between lines of sample points,
* whereas LeftExtreme or RightExtreme implies guided interpolation, where
* interpolation is done parallel to a guide line. With LeftExtreme
* the lowest Y values will be used for the guide, and the guide line slope
* extends unchanged to infinity. With RightExtreme, the highest Y values
* are used, and the slope decreases linearly down to 0 at Y = 0.
*/
enum class InterpolationGuide { LeftExtreme, RightExtreme, Vertical };
/*!
* \brief Implements a scalar function that depends on two variables and which is sampled
@ -70,7 +60,21 @@ class UniformXTabulated2DFunction
public:
explicit UniformXTabulated2DFunction(const InterpolationGuide iGuide)
/*!
* \brief Indicates how interpolation will be performed.
*
* Normal interpolation is done by interpolating vertically
* between lines of sample points, whereas LeftExtreme or
* RightExtreme implies guided interpolation, where
* interpolation is done parallel to a guide line. With
* LeftExtreme the lowest Y values will be used for the guide,
* and the guide line slope extends unchanged to infinity. With
* RightExtreme, the highest Y values are used, and the slope
* decreases linearly down to 0 (normal interpolation) for y <= 0.
*/
enum class InterpolationPolicy { LeftExtreme, RightExtreme, Vertical };
explicit UniformXTabulated2DFunction(const InterpolationPolicy iGuide)
: interpGuide_(iGuide)
{ }
@ -298,13 +302,13 @@ public:
const Evaluation& alpha = xToAlpha(x, i);
// find upper and lower y value
Evaluation shift = 0.0;
if (interpGuide_ == InterpolationGuide::Vertical) {
if (interpGuide_ == InterpolationPolicy::Vertical) {
// Shift is zero, no need to reset it.
} else {
if (interpGuide_ == InterpolationGuide::LeftExtreme) {
if (interpGuide_ == InterpolationPolicy::LeftExtreme) {
shift = yPos_[i+1] - yPos_[i];
} else {
assert(interpGuide_ == InterpolationGuide::RightExtreme);
assert(interpGuide_ == InterpolationPolicy::RightExtreme);
shift = yPos_[i+1] - yPos_[i];
auto yEnd = yPos_[i]*(1.0 - alpha) + yPos_[i+1]*alpha;
if (yEnd > 0.) {
@ -314,13 +318,13 @@ public:
}
}
}
auto ylower = y - alpha*shift;
auto yupper = y + (1-alpha)*shift;
auto yLower = y - alpha*shift;
auto yUpper = y + (1-alpha)*shift;
unsigned j1 = ySegmentIndex(ylower, i, extrapolate);
unsigned j2 = ySegmentIndex(yupper, i + 1, extrapolate);
const Evaluation& beta1 = yToBeta(ylower, i, j1);
const Evaluation& beta2 = yToBeta(yupper, i + 1, j2);
unsigned j1 = ySegmentIndex(yLower, i, extrapolate);
unsigned j2 = ySegmentIndex(yUpper, i + 1, extrapolate);
const Evaluation& beta1 = yToBeta(yLower, i, j1);
const Evaluation& beta2 = yToBeta(yUpper, i + 1, j2);
// evaluate the two function values for the same y value ...
const Evaluation& s1 = valueAt(i, j1)*(1.0 - beta1) + valueAt(i, j1 + 1)*beta1;
@ -345,8 +349,8 @@ public:
{
if (xPos_.empty() || xPos_.back() < nextX) {
xPos_.push_back(nextX);
yPos_.resize(xPos_.size());
samples_.resize(xPos_.size());
yPos_.push_back(-1e100);
samples_.push_back({});
return xPos_.size() - 1;
}
else if (xPos_.front() > nextX) {
@ -371,7 +375,7 @@ public:
Scalar x = iToX(i);
if (samples_[i].empty() || std::get<1>(samples_[i].back()) < y) {
samples_[i].push_back(SamplePoint(x, y, value));
if (interpGuide_ == InterpolationGuide::RightExtreme) {
if (interpGuide_ == InterpolationPolicy::RightExtreme) {
yPos_[i] = y;
}
return samples_[i].size() - 1;
@ -379,7 +383,7 @@ public:
else if (std::get<1>(samples_[i].front()) > y) {
// slow, but we still don't care...
samples_[i].insert(samples_[i].begin(), SamplePoint(x, y, value));
if (interpGuide_ == InterpolationGuide::LeftExtreme) {
if (interpGuide_ == InterpolationPolicy::LeftExtreme) {
yPos_[i] = y;
}
return 0;
@ -432,7 +436,7 @@ private:
std::vector<Scalar> xPos_;
// the position on the y-axis of the guide point
std::vector<Scalar> yPos_;
InterpolationGuide interpGuide_;
InterpolationPolicy interpGuide_;
};

6
opm/material/fluidsystems/blackoilpvt/LiveOilPvt.hpp
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@ -238,11 +238,11 @@ public:
{
oilReferenceDensity_.resize(numRegions);
gasReferenceDensity_.resize(numRegions);
inverseOilBTable_.resize(numRegions, TabulatedTwoDFunction{InterpolationGuide::LeftExtreme});
inverseOilBMuTable_.resize(numRegions, TabulatedTwoDFunction{InterpolationGuide::LeftExtreme});
inverseOilBTable_.resize(numRegions, TabulatedTwoDFunction{TabulatedTwoDFunction::InterpolationPolicy::LeftExtreme});
inverseOilBMuTable_.resize(numRegions, TabulatedTwoDFunction{TabulatedTwoDFunction::InterpolationPolicy::LeftExtreme});
inverseSaturatedOilBTable_.resize(numRegions);
inverseSaturatedOilBMuTable_.resize(numRegions);
oilMuTable_.resize(numRegions, TabulatedTwoDFunction{InterpolationGuide::LeftExtreme});
oilMuTable_.resize(numRegions, TabulatedTwoDFunction{TabulatedTwoDFunction::InterpolationPolicy::LeftExtreme});
saturatedOilMuTable_.resize(numRegions);
saturatedGasDissolutionFactorTable_.resize(numRegions);
saturationPressure_.resize(numRegions);

6
opm/material/fluidsystems/blackoilpvt/WetGasPvt.hpp
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@ -234,11 +234,11 @@ public:
{
oilReferenceDensity_.resize(numRegions);
gasReferenceDensity_.resize(numRegions);
inverseGasB_.resize(numRegions, TabulatedTwoDFunction{InterpolationGuide::RightExtreme});
inverseGasBMu_.resize(numRegions, TabulatedTwoDFunction{InterpolationGuide::RightExtreme});
inverseGasB_.resize(numRegions, TabulatedTwoDFunction{TabulatedTwoDFunction::InterpolationPolicy::RightExtreme});
inverseGasBMu_.resize(numRegions, TabulatedTwoDFunction{TabulatedTwoDFunction::InterpolationPolicy::RightExtreme});
inverseSaturatedGasB_.resize(numRegions);
inverseSaturatedGasBMu_.resize(numRegions);
gasMu_.resize(numRegions, TabulatedTwoDFunction{InterpolationGuide::RightExtreme});
gasMu_.resize(numRegions, TabulatedTwoDFunction{TabulatedTwoDFunction::InterpolationPolicy::RightExtreme});
saturatedOilVaporizationFactorTable_.resize(numRegions);
saturationPressure_.resize(numRegions);
}

4
tests/test_2dtables.cpp
View File

@ -90,7 +90,7 @@ struct Test
Scalar yMin = -1/2.0;
Scalar yMax = 1/3.0;
unsigned n = 40;
auto tab = std::make_shared<Opm::UniformXTabulated2DFunction<Scalar>>(Opm::InterpolationGuide::Vertical);
auto tab = std::make_shared<Opm::UniformXTabulated2DFunction<Scalar>>(Opm::UniformXTabulated2DFunction<Scalar>::InterpolationPolicy::Vertical);
for (unsigned i = 0; i < m; ++i) {
Scalar x = xMin + Scalar(i)/(m - 1) * (xMax - xMin);
tab->appendXPos(x);
@ -115,7 +115,7 @@ struct Test
Scalar yMin = - 4.0;
Scalar yMax = 5.0;
auto tab = std::make_shared<Opm::UniformXTabulated2DFunction<Scalar>>(Opm::InterpolationGuide::Vertical);
auto tab = std::make_shared<Opm::UniformXTabulated2DFunction<Scalar>>(Opm::UniformXTabulated2DFunction<Scalar>::InterpolationPolicy::Vertical);
for (unsigned i = 0; i < m; ++i) {
Scalar x = xMin + Scalar(i)/(m - 1) * (xMax - xMin);