实现test_mql PNL0003与PNL00R管路

tests/test_amesim_pneumatic_line_components.py

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+from __future__ import annotations
+
+import unittest
+
+from PythonModels.components.amesim_pneumatic_line import (
+    AmesimPnl0003Pipe,
+    AmesimPnl00rPipe,
+)
+
+
+class AmesimPnl0003PipeTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.pipe = AmesimPnl0003Pipe(
+            name="pneumatic_88",
+            diameter_mm=20.0,
+            length_m=0.3,
+            relative_roughness=0.045 / 20.0,
+            p1_0=15.3e6,
+            p2_0=15.3e6,
+            T1_0=293.15,
+            T2_0=293.15,
+        )
+
+    def test_initial_state_uses_two_half_volume_compliances(self) -> None:
+        port_1 = self.pipe.properties_1()
+        port_2 = self.pipe.properties_2()
+
+        self.assertAlmostEqual(self.pipe.volume, 9.424777960769381e-5)
+        self.assertAlmostEqual(self.pipe.compliance_volume, self.pipe.volume / 2.0)
+        self.assertEqual(len(self.pipe.get_state_vector()), 4)
+        self.assertAlmostEqual(port_1.p, 15.3e6, delta=1.0e-5)
+        self.assertAlmostEqual(port_2.p, 15.3e6, delta=1.0e-5)
+        self.assertAlmostEqual(port_1.T, 293.15)
+        self.assertAlmostEqual(port_2.T, 293.15)
+
+    def test_center_resistance_flow_follows_end_pressure_gradient(self) -> None:
+        state = self.pipe.get_state_vector()
+        state[0] *= 1.01
+        state[1] *= 1.01
+        self.pipe.set_state_vector(state)
+
+        forward = self.pipe.resistance_mass_flow()
+        state[0] /= 1.01 * 1.01
+        state[1] /= 1.01 * 1.01
+        state[2] *= 1.01
+        state[3] *= 1.01
+        self.pipe.set_state_vector(state)
+        reverse = self.pipe.resistance_mass_flow()
+
+        self.assertGreater(forward, 0.0)
+        self.assertLess(reverse, 0.0)
+
+    def test_connection_derivatives_conserve_internal_center_flow_mass(self) -> None:
+        state = self.pipe.get_state_vector()
+        state[0] *= 1.01
+        state[1] *= 1.01
+        self.pipe.set_state_vector(state)
+
+        d1, d2 = self.pipe.derivatives_from_connections(
+            port_1_m_flow=0.2,
+            connected_h_1=self.pipe.properties_1().h + 1000.0,
+            port_2_m_flow=-0.1,
+            connected_h_2=self.pipe.properties_2().h - 1000.0,
+        )
+
+        self.assertAlmostEqual(d1.m + d2.m, 0.1)
+
+
+class AmesimPnl00rPipeTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.pipe = AmesimPnl00rPipe(
+            name="pneumatic_100",
+            diameter_mm=14.0,
+            length_m=1.0,
+            relative_roughness=0.045 / 14.0,
+        )
+
+    def test_stateless_resistance_flow_follows_pressure_gradient(self) -> None:
+        forward = self.pipe.mass_flow(
+            port_1_pressure_pa=15.31e6,
+            port_1_temperature_k=293.15,
+            port_2_pressure_pa=15.29e6,
+            port_2_temperature_k=293.15,
+        )
+        reverse = self.pipe.mass_flow(
+            port_1_pressure_pa=15.29e6,
+            port_1_temperature_k=293.15,
+            port_2_pressure_pa=15.31e6,
+            port_2_temperature_k=293.15,
+        )
+
+        self.assertGreater(forward, 0.0)
+        self.assertLess(reverse, 0.0)
+        self.assertAlmostEqual(abs(forward), abs(reverse), delta=abs(forward) * 0.01)
+
+    def test_diagnostics_expose_darcy_terms(self) -> None:
+        diagnostics = self.pipe.diagnostics(
+            mass_flow_kg_s=1.0e-4,
+            pressure_pa=15.3e6,
+            temperature_k=293.15,
+        )
+
+        self.assertGreater(diagnostics.reynolds_number, 0.0)
+        self.assertGreater(diagnostics.gas_velocity_m_s, 0.0)
+        self.assertGreater(diagnostics.pressure_drop_pa, 0.0)
+
+
+if __name__ == "__main__":
+    unittest.main()