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added code for multiple BCs per sideset #42

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Jan 29, 2025
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added code for multiple BCs per sideset #42

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10 changes: 5 additions & 5 deletions examples/ahead/overlap/cuboid/dynamic-opinf-fom/make_op_inf_models.py
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Expand Up @@ -20,13 +20,13 @@
displacement_snapshots[free_dofs[:,:]==False] = 0.

#Get sideset snapshots
sidesets = ["nsx-","nsy-","ssz-","nsz+"]
sidesets = ["nsx--x","nsy--y","ssz-","nsz+-z"]
sideset_snapshots = normaopinf.readers.load_sideset_displacement_csv_files(solution_directory=cur_dir,sidesets=sidesets,solution_id=solution_id,skip_files=1)


tolerance = 1.e-5
# Create bases for sidesets
my_energy_truncater = romtools.vector_space.utils.EnergyBasedTruncater(1. - 1.e-5)
my_energy_truncater = romtools.vector_space.utils.EnergyBasedTruncater(1. - tolerance)

ss_tspace = {}
reduced_sideset_snapshots = {}
for sideset in sidesets:
Expand Down Expand Up @@ -80,7 +80,7 @@
uhat = romtools.rom.optimal_l2_projection(displacement_snapshots,trial_space)
u_ddots = normaopinf.calculus.d2dx2(displacement_snapshots,times)
uhat_ddots = romtools.rom.optimal_l2_projection(u_ddots*1.,trial_space)
l2solver = opinf.lstsq.L2Solver(regularizer=1e-8)
l2solver = opinf.lstsq.L2Solver(regularizer=5e-3)
opinf_model = opinf.models.ContinuousModel("AB",solver=l2solver)

opinf_model.fit(states=uhat, ddts=uhat_ddots,inputs=reduced_stacked_sideset_snapshots)
Expand Down
Binary file modified examples/ahead/overlap/cuboid/dynamic-opinf-rom/opinf-operator.npz
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14 changes: 13 additions & 1 deletion src/ics_bcs.jl
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Expand Up @@ -221,7 +221,19 @@ function apply_bc(model::LinearOpInfRom, bc::SMDirichletBC)
disp_val = model.fom_model.current[bc.offset,node_index] - model.fom_model.reference[bc.offset, node_index]
push!(bc_vector,disp_val)
end
op_name = "B_"*bc.node_set_name

offset = bc.offset
if offset == 1
offset_name = "x"
end
if offset == 2
offset_name = "y"
end
if offset == 3
offset_name = "z"
end

op_name = "B_"*bc.node_set_name * "-" * offset_name
bc_operator = model.opinf_rom[op_name]
# SM Dirichlet BC are only defined on a single x,y,z
model.reduced_boundary_forcing[:] += bc_operator[1,:,:] * bc_vector
Expand Down
31 changes: 22 additions & 9 deletions src/time_integrator.jl
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Expand Up @@ -494,6 +494,8 @@ function write_step_csv(integrator::TimeIntegrator, model::SolidMechanics, sim_i
refe_filename = sim_id_string * "refe" * ".csv"
writedlm_nodal_array(refe_filename, model.reference)
end
free_dofs_filename = sim_id_string * "free_dofs" * index_string * ".csv"
writedlm(free_dofs_filename, model.free_dofs)
curr_filename = sim_id_string * "curr" * index_string * ".csv"
writedlm_nodal_array(curr_filename, model.current)
disp_filename = sim_id_string * "disp" * index_string * ".csv"
Expand All @@ -512,7 +514,7 @@ function write_step_csv(integrator::TimeIntegrator, model::SolidMechanics, sim_i
end
end

function write_sideset_step_csv(params::Dict{Any,Any},integrator::DynamicTimeIntegrator, model::SolidMechanics, sim_id::Integer)
function write_sideset_step_csv(params::Dict{String,Any},integrator::DynamicTimeIntegrator, model::SolidMechanics, sim_id::Integer)
stop = integrator.stop
index_string = "-" * string(stop, pad = 4)
sim_id_string = string(sim_id, pad = 2) * "-"
Expand All @@ -522,20 +524,30 @@ function write_sideset_step_csv(params::Dict{Any,Any},integrator::DynamicTimeInt
for bc ∈ model.boundary_conditions
if (typeof(bc) == SMDirichletBC)
node_set_name = bc.node_set_name
curr_filename = sim_id_string * node_set_name * "curr" * index_string * ".csv"
disp_filename = sim_id_string * node_set_name * "disp" * index_string * ".csv"
velo_filename = sim_id_string * node_set_name * "velo" * index_string * ".csv"
acce_filename = sim_id_string * node_set_name * "acce" * index_string * ".csv"
offset = bc.offset
if offset == 1
offset_name = "x"
end
if offset == 2
offset_name = "y"
end
if offset == 3
offset_name = "z"
end
curr_filename = sim_id_string * node_set_name * "-" * offset_name * "-curr" * index_string * ".csv"
disp_filename = sim_id_string * node_set_name * "-" * offset_name * "-disp" * index_string * ".csv"
velo_filename = sim_id_string * node_set_name * "-" * offset_name * "-velo" * index_string * ".csv"
acce_filename = sim_id_string * node_set_name * "-" * offset_name * "-acce" * index_string * ".csv"
writedlm(curr_filename, model.current[bc.offset,bc.node_set_node_indices])
writedlm(velo_filename, model.velocity[bc.offset,bc.node_set_node_indices])
writedlm(acce_filename, model.acceleration[bc.offset,bc.node_set_node_indices])
writedlm(disp_filename, model.current[bc.offset,bc.node_set_node_indices] - model.reference[bc.offset,bc.node_set_node_indices])
elseif (typeof(bc) == SMOverlapSchwarzBC)
side_set_name = bc.side_set_name
curr_filename = sim_id_string * side_set_name * "curr" * index_string * ".csv"
disp_filename = sim_id_string * side_set_name * "disp" * index_string * ".csv"
velo_filename = sim_id_string * side_set_name * "velo" * index_string * ".csv"
acce_filename = sim_id_string * side_set_name * "acce" * index_string * ".csv"
curr_filename = sim_id_string * side_set_name * "-curr" * index_string * ".csv"
disp_filename = sim_id_string * side_set_name * "-disp" * index_string * ".csv"
velo_filename = sim_id_string * side_set_name * "-velo" * index_string * ".csv"
acce_filename = sim_id_string * side_set_name * "-acce" * index_string * ".csv"
writedlm_nodal_array(curr_filename, model.current[:,bc.side_set_node_indices])
writedlm_nodal_array(velo_filename, model.velocity[:,bc.side_set_node_indices])
writedlm_nodal_array(acce_filename, model.acceleration[:,bc.side_set_node_indices])
Expand All @@ -544,6 +556,7 @@ function write_sideset_step_csv(params::Dict{Any,Any},integrator::DynamicTimeInt
end
end


function write_step_csv(integrator::DynamicTimeIntegrator, model::OpInfModel, sim_id::Integer)
stop = integrator.stop
index_string = "-" * string(stop, pad = 4)
Expand Down
6 changes: 3 additions & 3 deletions test/opinf-schwarz-overlap-cuboid-hex8.jl
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Expand Up @@ -23,7 +23,7 @@
rm("cuboid-2.e")
rm("opinf-operator.npz")
print(model_coarse.reduced_state[1])
@test model_coarse.reduced_state[1] ≈ 0.04374576440784916 rtol = 1.0e-06
@test model_coarse.reduced_state[2] ≈ 0.04374576440786179 rtol = 1.0e-06
@test model_coarse.reduced_state[3] ≈ 0.19557108653526997 rtol = 1.0e-06
@test model_coarse.reduced_state[1] ≈ 0.04508462384388636 rtol = 1.0e-06
@test model_coarse.reduced_state[2] ≈ 0.0450846238438998 rtol = 1.0e-06
@test model_coarse.reduced_state[3] ≈ 0.21766337487648266 rtol = 1.0e-06
end
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