OilfieldToolsNet/ResInsight
4
0 Fork 0
mirror of https://github.com/OPM/ResInsight.git synced 2026-10-25 06:38:13 -05:00
Code Issues Packages Projects Releases Wiki Activity

VTK GeoMech: read stress/strain as the rows of a 3x3 tensor

Browse Source 
OPM Flow writes each symmetric tensor as three cell arrays
"stress[0]", "stress[1]", "stress[2]", the rows (Si1, Si2, Si3). The
reader took "stress[0]" as (S11, S22, S33) and "stress[1]" as
(S12, S13, S23), so S22, S33 and S13 held the wrong components and
"stress[2]" was ignored. Read the upper triangle from the three rows.

Coordinates are imported with z negated; S13/S23 and E13/E23 now
change sign with it, as U3 already does.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
hnilandClaude Opus 5.5 authored and Kristian Bendiksen committed 2026-10-23 20:27:23 +02:00
1 parent e6dc62a160
commit 03eff53507
3 files changed
+69 -29
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

ApplicationLibCode/GeoMech/GeoMechFileInterface/RifVtkReader.cpp
+27 -29
View File
@@ -664,50 +664,48 @@ void RifVtkReader::readScalarData( RigFemPartCollection*
auto map = propertyDataMap( RigFemResultPosEnum::RIG_ELEMENT );
if ( map == nullptr ) continue;
// Multi-component element results: stress[0/1] -> S_VTK, strain[0/1] -> E_VTK
// Each VTK array contains 3 components per element.
// Mapping:
// stress[0]: S_VTK.S11 (index 0), S_VTK.S22 (index 1), S_VTK.S33 (index 2)
// stress[1]: S_VTK.S12 (index 0), S_VTK.S13 (index 1), S_VTK.S23 (index 2)
// strain[0]: E_VTK.E11 (index 0), E_VTK.E22 (index 1), E_VTK.E33 (index 2)
// strain[1]: E_VTK.E12 (index 0), E_VTK.E13 (index 1), E_VTK.E23 (index 2)
// OPM Flow writes a symmetric 3x3 tensor as three rows "stress[0..2]" of 3 values each.
// The upper triangle is read. z is negated on import, so the xz and yz components change sign.
struct StressStrainMapping
{
std::string vtkName;
std::string fieldName;
std::array<std::string, 3> componentNames;
std::string vtkName;
int column;
std::string fieldName;
std::string componentName;
double sign;
};
using namespace RifVtkFieldNames;
static const std::vector<StressStrainMapping> mappings = {
{ "stress[0]", S, { S11, S22, S33 } },
{ "stress[1]", S, { S12, S13, S23 } },
{ "strain[0]", E, { E11, E22, E33 } },
{ "strain[1]", E, { E12, E13, E23 } },
{ "stress[0]", 0, S, S11, 1.0 },
{ "stress[0]", 1, S, S12, 1.0 },
{ "stress[0]", 2, S, S13, -1.0 },
{ "stress[1]", 1, S, S22, 1.0 },
{ "stress[1]", 2, S, S23, -1.0 },
{ "stress[2]", 2, S, S33, 1.0 },
{ "strain[0]", 0, E, E11, 1.0 },
{ "strain[0]", 1, E, E12, 1.0 },
{ "strain[0]", 2, E, E13, -1.0 },
{ "strain[1]", 1, E, E22, 1.0 },
{ "strain[1]", 2, E, E23, -1.0 },
{ "strain[2]", 2, E, E33, 1.0 },
};
for ( const auto& mapping : mappings )
{
if ( propertyName != mapping.vtkName ) continue;
for ( int compIdx = 0; compIdx < 3; compIdx++ )
std::string internalKey = mapping.fieldName + separator + mapping.componentName;
for ( int partIdx = 0; partIdx < femParts->partCount(); partIdx++ )
{
std::string internalKey = mapping.fieldName + separator + mapping.componentNames[compIdx];
if ( map->count( internalKey ) == 0 ) ( *map )[internalKey] = {};
if ( ( *map )[internalKey].count( stepId ) == 0 ) ( *map )[internalKey][stepId] = {};
for ( int partIdx = 0; partIdx < femParts->partCount(); partIdx++ )
size_t dataSize = femParts->part( partIdx )->elementCount();
std::vector<double> compValues( dataSize, 0.0 );
for ( size_t i = 0; i < dataSize; i++ )
{
size_t dataSize = femParts->part( partIdx )->elementCount();
std::vector<double> compValues( dataSize, 0.0 );
for ( size_t i = 0; i < dataSize; i++ )
{
compValues[i] = values[i * 3 + compIdx];
}
( *map )[internalKey][stepId][partIdx] = compValues;
compValues[i] = mapping.sign * values[i * 3 + mapping.column];
}
( *map )[internalKey][stepId][partIdx] = compValues;
}
}
}