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Node/element diameters need to be updated with MoveMesh #1182

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merged 2 commits into from
May 15, 2020
Merged

Node/element diameters need to be updated with MoveMesh #1182

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7a993a0
FIX: recompute geometric info to get correct element/node diameters. …
zhang-alvin May 14, 2020
9a1ec42
Merge remote-tracking branch 'upstream/master' into correctMeshInfo_p…
zhang-alvin May 15, 2020
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16 changes: 16 additions & 0 deletions proteus/mprans/MoveMesh.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@
from proteus.Transport import OneLevelTransport, TC_base, NonlinearEquation
from proteus import Quadrature, FemTools, Comm, Archiver, cfemIntegrals
from proteus.Profiling import logEvent, memory
from proteus import cmeshTools
from . import cArgumentsDict

class Coefficients(proteus.TransportCoefficients.TC_base):
Expand All @@ -34,6 +35,7 @@ def __init__(self,
self.gravityStep = True
self.meIndex = meIndex
self.dt_last = None
self.dt_last_last = None
self.solidsList = []
self.nullSpace = nullSpace
if initialize:
Expand Down Expand Up @@ -137,7 +139,21 @@ def postStep(self, t, firstStep=False):
else:
dt = self.dt_last
self.mesh.nodeVelocityArray /= dt
#this is needed for proper restarting
if(self.dt_last is not None):
self.dt_last_last = self.dt_last

self.dt_last = self.model.timeIntegration.dt

#update nodal/element diameters:
#TODO: unclear if this needs to apply to all mesh types
if self.nd == 2:
cmeshTools.computeGeometricInfo_triangle(self.mesh.subdomainMesh.cmesh)
self.mesh.buildFromC(self.mesh.cmesh)
if self.nd == 3:
cmeshTools.computeGeometricInfo_tetrahedron(self.mesh.subdomainMesh.cmesh)
self.mesh.buildFromC(self.mesh.cmesh)

copyInstructions = {'clear_uList': True}
return copyInstructions

Expand Down