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Scale constraint 93 to have residual in Z.particles/s #4702

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Merged
timothy-nunn merged 1 commit into from
Oct 20, 2026
Merged

Scale constraint 93 to have residual in Z.particles/s #4702

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9 changes: 6 additions & 3 deletions process/core/solver/constraints.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1939,16 +1939,19 @@ def constraint_equation_92(constraint_registration, data):
)


@ConstraintManager.register_constraint(93, "particles/s", "=")
@ConstraintManager.register_constraint(93, "Z.particles/s", "=")
def constraint_equation_93(constraint_registration, data):
"""Fuel-ion equilibrium constraint.

Requires the plasma fuelling rate to equal the fuelling rate required
for fuel-ion equilibrium.

Note the units of the constraint residual (not either variable)
is zetta-particles per second.
"""
return eq(
data.physics.molflow_plasma_fuelling,
data.physics.molflow_plasma_fuelling_equilibrium,
data.physics.molflow_plasma_fuelling / 10**21,
data.physics.molflow_plasma_fuelling_equilibrium / 10**21,
constraint_registration,
)

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