(From #3947 (comment))
Constraint 52's docstring makes reference to models that no longer exist.
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@ConstraintManager.register_constraint(52, "", ">=") |
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def constraint_equation_52(): |
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"""Equation for tritium breeding ratio lower limit |
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author: P B Lloyd, CCFE, Culham Science Centre |
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ftbr: f-value for minimum tritium breeding ratio |
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tbr: tritium breeding ratio (i_blanket_type=2,3 (KIT HCPB/HCLL)) |
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tbrmin: minimum tritium breeding ratio (If i_blanket_type=1, tbrmin=minimum 5-year time-averaged tritium breeding ratio) |
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""" |
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cc = ( |
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1.0 |
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- data_structure.constraint_variables.ftbr |
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* data_structure.fwbs_variables.tbr |
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/ data_structure.constraint_variables.tbrmin |
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) |
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return ConstraintResult( |
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cc, |
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data_structure.constraint_variables.tbrmin * (1.0 - cc), |
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data_structure.constraint_variables.tbrmin * cc, |
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) |
I believe that fwbs_variables.tbr is now only set by the IFE model. We should:
- Update the docstring
- Add a check into the logic that the user is indeed running (the correct type of) IFE.
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fwbs_variables.tbr = ( |
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3.7418 |
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* (1.0 / (1.0 + np.exp(-2.6366 * ife_variables.bldrc)) - 0.5) |
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* li_frac |
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) |
