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adapter.py
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adapter.py
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import os
import sys
import numpy as np
import numpy.linalg
#from mpi4py import MPI
from code_aster.Cata.Commands import *
from Utilitai import partition
import precice
np.set_printoptions(threshold=np.inf)
class Adapter:
def __init__(self, preciceConfigFile, participantName, config, MESH, MODEL, MAT, isNonLinear=False):
self.interfaces = []
self.numInterfaces = len(config)
self.MESH = MESH
self.MODEL = MODEL
self.MAT = MAT
self.LOADS = []
self.isNonLinear = isNonLinear
self.participantName = participantName
self.precice = precice.Participant(participantName, preciceConfigFile, 0, 1)
self.configure(config)
def configure(self, config):
L = [None] * self.numInterfaces # Loads
SM = [None] * self.numInterfaces # Shifted meshes
for i in range(self.numInterfaces):
# Shifted mesh (interface nodes displaced by a distance delta in the direction of the surface normal
SM[i] = CREA_MAILLAGE(MAILLAGE=self.MESH, RESTREINT={"GROUP_MA": config[i]["patch"], "GROUP_NO": config[i]["patch"]})
# Create interface
interface = Interface(self.precice, self.participantName, config[i], self.MESH, SM[i], self.MODEL, self.MAT[config[i]["material-id"]], self.isNonLinear)
# Loads
BCs = interface.createBCs()
L[i] = AFFE_CHAR_THER(MODELE=self.MODEL, ECHANGE=BCs)
interface.setLoad(L[i])
self.LOADS.append({'CHARGE': L[i]})
self.interfaces.append(interface)
def initialize(self, INIT_T):
if self.precice.requires_initial_data():
self.writeCouplingData(INIT_T)
self.precice.initialize()
def isCouplingOngoing(self):
return self.precice.is_coupling_ongoing()
def writeCouplingData(self, TEMP):
for interface in self.interfaces:
interface.writeBCs(TEMP)
def readCouplingData(self):
for interface in self.interfaces:
interface.readAndUpdateBCs()
def writeCheckpoint(self):
if self.precice.requires_writing_checkpoint():
# Do nothing
pass
def readCheckpoint(self):
if self.precice.requires_reading_checkpoint():
# Do nothing
pass
def isCouplingTimestepComplete(self):
return self.precice.is_time_window_complete()
def advance(self):
dt = self.precice.get_max_time_step_size()
self.precice.advance(dt)
def finalize(self):
self.precice.finalize()
def getMaxTimeStepSize(self):
return self.precice.get_max_time_step_size()
class Interface:
def __init__(self, precice, participantName, names, MESH, SHMESH, MODEL, MAT, isNonLinear = False):
self.precice = precice
self.participantName = participantName
self.groupName = ""
self.facesMeshName = ""
self.nodesMeshName = ""
self.nodes = []
self.faces = []
self.connectivity = []
self.nodeCoordinates = []
self.faceCenterCoordinates = []
self.normals = None
self.isNonLinear = isNonLinear
self.conductivity = None
self.isConductivityInitialized = False
self.delta = 1e-5
self.preciceNodeIndices = []
self.preciceFaceCenterIndices = []
self.readData = dict()
self.writeDataNames = []
self.MESH = MESH
# Shifted mesh (contains only the interface, and is shifted by delta in the direction opposite to the normal)
self.SHMESH = SHMESH
self.MODEL = MODEL
self.MAT = MAT
self.LOAD = None
self.LOADS = []
self.mesh = partition.MAIL_PY()
self.mesh.FromAster(MESH)
self.configure(names)
def configure(self, names):
self.groupName = names["patch"]
# In Code_Aster, write-data is located at the nodes
self.nodesMeshName = names["write-mesh"]
# and read-data is located at the face centers
self.faceCentersMeshName = names["read-mesh"]
self.computeNormals()
nodes_mesh_dims = self.precice.get_mesh_dimensions(self.nodesMeshName)
face_centers_mesh_dims = self.precice.get_mesh_dimensions(self.faceCentersMeshName)
if nodes_mesh_dims != face_centers_mesh_dims:
raise ValueError("Dimensions of the read mesh and the write mesh do not match")
else:
# Set dimensions to nodes mesh dimensions
dims = nodes_mesh_dims
self.nodeCoordinates = np.array([p for p in self.SHMESH.sdj.COORDO.VALE.get()])
self.nodeCoordinates = np.resize(self.nodeCoordinates, (int(len(self.nodeCoordinates)/dims), dims))
self.shiftMesh()
self.faces = [self.mesh.correspondance_mailles[idx] for idx in self.mesh.gma[self.groupName]]
self.connectivity = [self.mesh.co[idx] for idx in self.mesh.gma[self.groupName]]
self.faceCenterCoordinates = np.array([np.array([self.mesh.cn[node] for node in elem]).mean(0) for elem in self.connectivity])
self.setVertices()
self.setDataNames(names)
def computeNormals(self):
# Get normals at the nodes
DUMMY = AFFE_MODELE(
MAILLAGE=self.SHMESH,
AFFE={
'TOUT': 'OUI',
'PHENOMENE': 'THERMIQUE',
'MODELISATION': '3D',
},
)
N = CREA_CHAMP(
MODELE=DUMMY,
TYPE_CHAM='NOEU_GEOM_R',
GROUP_MA=self.groupName,
OPERATION='NORMALE'
)
self.normals = N.EXTR_COMP().valeurs
dims = self.precice.get_mesh_dimensions(self.nodesMeshName)
self.normals = np.resize(np.array(self.normals), (int(len(self.normals)/dims), dims))
DETRUIRE(CONCEPT=({"NOM": N}, {"NOM": DUMMY}))
def setVertices(self):
# Nodes
self.preciceNodeIndices = self.precice.set_mesh_vertices(self.nodesMeshName, self.nodeCoordinates)
# Face centers
self.preciceFaceCenterIndices = self.precice.set_mesh_vertices(self.faceCentersMeshName, self.faceCenterCoordinates)
def setDataNames(self, names):
for writeDataName in names["write-data"]:
if writeDataName.find("Heat-Transfer-Coefficient-Solid") >= 0:
self.writeDataNames.append(writeDataName)
elif writeDataName.find("Sink-Temperature-Solid") >= 0:
self.writeDataNames.append(writeDataName)
for readDataName in names["read-data"]:
if readDataName.find("Heat-Transfer-Coefficient-Fluid") >= 0:
self.readData[readDataName] = None
elif readDataName.find("Sink-Temperature-Fluid") >= 0:
self.readData[readDataName] = None
def getPreciceNodeIndices(self):
return self.preciceNodeIndices
def getPreciceFaceCenterIndices(self):
return self.preciceFaceCenterIndices
def getNodeCoordinates(self):
return self.nodeCoordinates
def getFaceCenterCoordinates(self):
return self.faceCenterCoordinates
def getNormals(self):
return self.normals
def createBCs(self):
"""
Note: TEMP_EXT and COEF_H need to be initialized with different values, otherwise Code_Aster
will group identical values together, and it will not be possible to apply different BCs
to different element faces. Additionally, COEF_H must be different from 0
(otherwise it will be grouped with a default internal 0).
"""
BCs = [
{'MAILLE': self.faces[j], 'TEMP_EXT': j, 'COEF_H': j+1}
for j in range(len(self.faces))
]
return BCs
def updateBCs(self, temp, hCoeff):
self.LOAD.sdj.CHTH.T_EXT.VALE.changeJeveuxValues(len(temp),
tuple(np.array(range(len(temp))) * 10 + 1),
tuple(temp),
tuple(temp),
1)
self.LOAD.sdj.CHTH.COEFH.VALE.changeJeveuxValues(len(hCoeff),
tuple(np.array(range(1, len(hCoeff)+1)) * 3 + 1),
tuple(hCoeff),
tuple(hCoeff),
1)
def readAndUpdateBCs(self):
dt = self.precice.get_max_time_step_size()
for name in self.readData.keys():
self.readData[name] = self.precice.read_data(self.faceCentersMeshName, name, self.preciceFaceCenterIndices, dt)
self.updateBCs(self.readData["Sink-Temperature-Fluid"], self.readData["Heat-Transfer-Coefficient-Fluid"])
def writeBCs(self, TEMP):
writeTemp, writeHCoeff = self.getBoundaryValues(TEMP)
self.precice.write_data(self.nodesMeshName, self.writeDataNames[0], self.preciceNodeIndices, writeHCoeff)
self.precice.write_data(self.nodesMeshName, self.writeDataNames[1], self.preciceNodeIndices, writeTemp)
def getBoundaryValues(self, T):
# Sink temperature
TPROJ = PROJ_CHAMP(MAILLAGE_1=self.MESH, MAILLAGE_2=self.SHMESH, CHAM_GD=T, METHODE='COLLOCATION')
writeTemp = TPROJ.EXTR_COMP(lgno=[self.groupName]).valeurs
DETRUIRE(CONCEPT=({'NOM': TPROJ}))
# Heat transfer coefficient
self.updateConductivity(writeTemp)
writeHCoeff = np.array(self.conductivity) / self.delta
return writeTemp, writeHCoeff
def setLoad(self, LOAD):
self.LOAD = LOAD
def shiftMesh(self):
dims = self.precice.get_mesh_dimensions(self.nodesMeshName)
coords = [p for p in self.SHMESH.sdj.COORDO.VALE.get()]
for i in range(len(self.normals)):
for c in range(dims):
coords[i*dims + c] = coords[i*dims + c] - self.normals[i][c] * self.delta
self.SHMESH.sdj.COORDO.VALE.changeJeveuxValues(len(coords), tuple(range(1, len(coords)+1)), tuple(coords), tuple(coords), 1)
def updateConductivity(self, T):
if self.isNonLinear:
self.conductivity = [self.MAT.RCVALE("THER_NL", nompar="TEMP", valpar=t, nomres="LAMBDA")[0][0] for t in T]
self.isConductivityInitialized = True
elif not self.isConductivityInitialized:
self.conductivity = [self.MAT.RCVALE("THER", nompar="TEMP", valpar=t, nomres="LAMBDA")[0][0] for t in T]
self.isConductivityInitialized = True
# Note: RCVALE returns ((LAMBDA,),(0,)), therefore we use [0][0] to extract the value of LAMBDA