67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
from __future__ import annotations
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import unittest
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from app.simulation.components.amesim.flow.orifices import AmesimPnvo001FixedOpening
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from app.simulation.core.medium import IdealGasMedium
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from app.simulation.registry import COMPONENT_MODEL_REGISTRY
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class AmesimPnvo001FixedOpeningComponentTests(unittest.TestCase):
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def setUp(self) -> None:
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self.medium = IdealGasMedium()
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def test_default_create_preserves_fixed_opening_contract(self) -> None:
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valve = COMPONENT_MODEL_REGISTRY["amesim_pnvo001_fixed"].create(
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"valve_1",
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self.medium,
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{},
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)
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self.assertIsInstance(valve, AmesimPnvo001FixedOpening)
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self.assertEqual(set(valve.ports), {"port_2", "port_3"})
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self.assertEqual(
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set(valve.parameter_values),
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{"cq", "area0", "Cv", "Kv", "gi", "flowset", "opening"},
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)
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self.assertEqual(valve.opening, 1.0)
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def test_rejects_fractional_flowset(self) -> None:
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with self.assertRaisesRegex(ValueError, "flowset must be an integer"):
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COMPONENT_MODEL_REGISTRY["amesim_pnvo001_fixed"].create(
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"valve_1",
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self.medium,
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{"flowset": 1.5},
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)
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def test_opening_scales_effective_area(self) -> None:
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valve = AmesimPnvo001FixedOpening(
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"valve_1",
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self.medium,
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area0=2.0e-6,
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opening=0.25,
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)
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self.assertAlmostEqual(valve.maximum_area, 2.0e-6)
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self.assertAlmostEqual(valve.effective_area, 0.5e-6)
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self.assertEqual(valve.component_result_values()["xv"], 0.25)
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def test_zero_opening_blocks_flow(self) -> None:
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valve = AmesimPnvo001FixedOpening("valve_1", self.medium, opening=0.0)
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self.assertEqual(valve.mass_flow(500000.0, 100000.0), 0.0)
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def test_mass_flow_is_bidirectional_by_pressure_order(self) -> None:
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valve = AmesimPnvo001FixedOpening("valve_1", self.medium, opening=0.5)
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forward = valve.mass_flow(500000.0, 100000.0)
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reverse = valve.mass_flow(100000.0, 500000.0)
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self.assertGreater(forward, 0.0)
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self.assertLess(reverse, 0.0)
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self.assertAlmostEqual(forward, -reverse)
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if __name__ == "__main__":
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unittest.main()
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