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Ebflow tracer diffusion bc #148

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Merged
asalmgren merged 2 commits into from
Jun 3, 2025
Merged

Ebflow tracer diffusion bc #148

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96e0b5b
For eb flow, make tracer diffusion solve uses a Dirichlet BC on the
cgilet Jun 3, 2025
1712a73
Add a tracer to benchmark.eb_flow_const_vely
cgilet Jun 3, 2025
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6 changes: 6 additions & 0 deletions src/diffusion/DiffusionScalarOp.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -231,6 +231,12 @@ DiffusionScalarOp::diffuse_scalar (Vector<MultiFab*> const& tracer,
}
}

if (m_incflo->hasEBFlow()) {
MultiFab phi(*m_incflo->get_tracer_eb()[lev], amrex::make_alias, comp, 1);
m_eb_scal_solve_op->setEBDirichlet(lev, phi, *eta[lev]);
} // else use default homogeneous Neumann on EB


Array<MultiFab,AMREX_SPACEDIM> b = m_incflo->average_scalar_eta_to_faces(lev, comp, *eta[lev]);
m_eb_scal_solve_op->setBCoeffs(lev, GetArrOfConstPtrs(b), MLMG::Location::FaceCentroid);
}
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10 changes: 7 additions & 3 deletions src/setup/incflo_arrays.cpp
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Expand Up @@ -8,15 +8,12 @@ incflo::LevelData::LevelData (amrex::BoxArray const& ba,
incflo* my_incflo)
: velocity (ba, dm, AMREX_SPACEDIM, my_incflo->nghost_state(), MFInfo(), fact),
velocity_o (ba, dm, AMREX_SPACEDIM, my_incflo->nghost_state(), MFInfo(), fact),
velocity_eb (ba, dm, AMREX_SPACEDIM, my_incflo->nghost_state(), MFInfo(), fact),

density (ba, dm, 1 , my_incflo->nghost_state(), MFInfo(), fact),
density_eb (ba, dm, 1 , my_incflo->nghost_state(), MFInfo(), fact),
density_o (ba, dm, 1 , my_incflo->nghost_state(), MFInfo(), fact),
density_nph (ba, dm, 1 , my_incflo->nghost_state(), MFInfo(), fact),

tracer (ba, dm, my_incflo->m_ntrac, my_incflo->nghost_state(), MFInfo(), fact),
tracer_eb (ba, dm, my_incflo->m_ntrac, my_incflo->nghost_state(), MFInfo(), fact),
tracer_o (ba, dm, my_incflo->m_ntrac, my_incflo->nghost_state(), MFInfo(), fact),

mac_phi (ba, dm, 1 , 1 , MFInfo(), fact),
Expand All @@ -31,6 +28,13 @@ incflo::LevelData::LevelData (amrex::BoxArray const& ba,
} else {
p_nd.define(convert(ba,IntVect::TheNodeVector()), dm, 1, 0, MFInfo(), fact);
}
#ifdef AMREX_USE_EB
if (my_incflo->hasEBFlow()) {
velocity_eb.define(ba, dm, AMREX_SPACEDIM, my_incflo->nghost_state(), MFInfo(), fact);
density_eb.define (ba, dm, 1 , my_incflo->nghost_state(), MFInfo(), fact);
tracer_eb.define (ba, dm, my_incflo->m_ntrac, my_incflo->nghost_state(), MFInfo(), fact);
}
#endif
if (my_incflo->m_advection_type != "MOL") {
divtau_o.define(ba, dm, AMREX_SPACEDIM, 0, MFInfo(), fact);
if (my_incflo->m_advect_tracer) {
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4 changes: 4 additions & 0 deletions test_2d/benchmark.eb_flow_const_vely
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Expand Up @@ -28,6 +28,9 @@ incflo.fluid_model = "newtonian" # Fluid model (rheology)
incflo.mu = 0.001 # Dynamic viscosity coefficient
incflo.constant_density = true #

incflo.advect_tracer = true
incflo.mu_s = 0.1

incflo.advection_type = "Godunov"
incflo.redistribution_type = "StateRedist"

Expand Down Expand Up @@ -81,3 +84,4 @@ nodal_proj.verbose = 1 # Nodal Projector
# EB FLOW #
#.......................................#
eb_flow.vel_mag = 0.1
eb_flow.tracer = 1.