对齐Amesim氦气PR物性与PNVO流量

tests/test_amesim_pnvo001_fixed_component.py

@@ -3,6 +3,9 @@ from __future__ import annotations
 import unittest
 
 from app.simulation.components.amesim.flow.orifices import AmesimPnvo001FixedOpening
+from app.simulation.components.amesim.media.mediums import (
+    AmesimHeliumPengRobinsonMedium,
+)
 from app.simulation.core.medium import IdealGasMedium
 from app.simulation.registry import COMPONENT_MODEL_REGISTRY
 
@@ -61,6 +64,86 @@ class AmesimPnvo001FixedOpeningComponentTests(unittest.TestCase):
         self.assertLess(reverse, 0.0)
         self.assertAlmostEqual(forward, -reverse)
 
+    def test_mass_flow_uses_connected_enthalpy_from_the_upstream_side(self) -> None:
+        valve = AmesimPnvo001FixedOpening("valve_1", self.medium, opening=0.5)
+        hot_h = self.medium.specific_enthalpy(600.0)
+        cold_h = self.medium.specific_enthalpy(200.0)
+
+        valve.update_stream_outflows({"port_2": hot_h, "port_3": cold_h})
+
+        self.assertEqual(valve.port_2.h_outflow, cold_h)
+        self.assertEqual(valve.port_3.h_outflow, hot_h)
+        self.assertAlmostEqual(
+            valve.mass_flow(500000.0, 100000.0),
+            valve._one_way_mass_flow(
+                upstream_pressure=500000.0,
+                downstream_pressure=100000.0,
+                upstream_temperature=600.0,
+            ),
+        )
+        self.assertAlmostEqual(
+            valve.mass_flow(100000.0, 500000.0),
+            -valve._one_way_mass_flow(
+                upstream_pressure=500000.0,
+                downstream_pressure=100000.0,
+                upstream_temperature=200.0,
+            ),
+        )
+
+
+    def test_helium_flow_uses_pressure_enthalpy_and_real_gas_factor(self) -> None:
+        medium = AmesimHeliumPengRobinsonMedium()
+        valve = AmesimPnvo001FixedOpening(
+            "valve_1",
+            medium,
+            cq=0.45,
+            area0=78.5e-6,
+            opening=1.0,
+        )
+        upstream_pressure = 15_201_996.778497815
+        downstream_pressure = 405_072.8123335606
+        upstream_temperature = 292.3997890954483
+        valve.port_2.p = upstream_pressure
+        valve.port_3.p = downstream_pressure
+        upstream_enthalpy = medium.specific_enthalpy_at_pressure(
+            upstream_pressure,
+            upstream_temperature,
+        )
+        valve.update_stream_outflows(
+            {
+                "port_2": upstream_enthalpy,
+                "port_3": medium.specific_enthalpy_at_pressure(
+                    downstream_pressure,
+                    393.46713105173205,
+                ),
+            }
+        )
+
+        self.assertLess(upstream_enthalpy, 0.0)
+        self.assertAlmostEqual(
+            valve._upstream_temperature("port_2"),
+            upstream_temperature,
+            delta=1.0e-8,
+        )
+
+        self.assertAlmostEqual(
+            valve.mass_flow(upstream_pressure, downstream_pressure),
+            0.49551308906777447,
+            delta=1.0e-9,
+        )
+        results = valve.component_result_values()
+
+        self.assertAlmostEqual(
+            results["cm"],
+            0.015778323343746598,
+            delta=1.0e-11,
+        )
+        self.assertAlmostEqual(
+            results["gasvel"],
+            894.7011595213406,
+            delta=1.0e-8,
+        )
+
 
 if __name__ == "__main__":
     unittest.main()