对齐PNL0002上游温度并稳定热流体闭合

tests/test_amesim_pnl0002_pnl0003_component.py

@@ -45,6 +45,80 @@ class AmesimPnl0002ComponentTests(unittest.TestCase):
         self.assertGreater(forward, 0.0)
         self.assertLess(reverse, 0.0)
 
+    def test_external_upstream_flow_uses_connected_stream_temperature(self) -> None:
+        pipe = AmesimPnl0002("pnl_2", self.medium, p0=100000.0, T0=350.0)
+        center = pipe.properties()
+        external_pressure = 15.3e6
+        external_temperature = 293.15
+        external_h = self.medium.specific_enthalpy_at_pressure(
+            external_pressure,
+            external_temperature,
+        )
+        pipe.update_stream_outflows(
+            {"port_1": external_h, "port_2": center.h}
+        )
+
+        flow = pipe.port_mass_flow(
+            external_pressure,
+            center.p,
+            center.T,
+            port_name="port_1",
+        )
+        expected = pipe.mass_flow(
+            external_pressure,
+            center.p,
+            external_temperature,
+        )
+        center_temperature_flow = pipe.mass_flow(
+            external_pressure,
+            center.p,
+            center.T,
+        )
+
+        self.assertAlmostEqual(flow, expected)
+        self.assertNotAlmostEqual(flow, center_temperature_flow)
+
+    def test_missing_stream_cache_preserves_center_temperature_fallback(self) -> None:
+        pipe = AmesimPnl0002("pnl_2", self.medium, p0=100000.0, T0=350.0)
+        center = pipe.properties()
+        external_pressure = 15.3e6
+
+        flow = pipe.port_mass_flow(
+            external_pressure,
+            center.p,
+            center.T,
+            port_name="port_1",
+        )
+
+        self.assertAlmostEqual(
+            flow,
+            pipe.mass_flow(external_pressure, center.p, center.T),
+        )
+
+    def test_center_upstream_flow_keeps_center_temperature(self) -> None:
+        pipe = AmesimPnl0002("pnl_2", self.medium, p0=15.3e6, T0=350.0)
+        center = pipe.properties()
+        external_pressure = 1.0e5
+        external_h = self.medium.specific_enthalpy_at_pressure(
+            external_pressure,
+            293.15,
+        )
+        pipe.update_stream_outflows(
+            {"port_1": external_h, "port_2": center.h}
+        )
+
+        flow = pipe.port_mass_flow(
+            external_pressure,
+            center.p,
+            center.T,
+            port_name="port_1",
+        )
+
+        self.assertAlmostEqual(
+            flow,
+            pipe.mass_flow(external_pressure, center.p, center.T),
+        )
+
     def test_pressure_flow_residuals_use_two_port_resistances(self) -> None:
         pipe = AmesimPnl0002("pnl_2", self.medium, p0=100000.0, T0=293.15)
         center = pipe.properties()

tests/test_component_catalog.py

@@ -464,7 +464,10 @@ class ComponentCatalogTests(unittest.TestCase):
             with self.subTest(model_type=model_type):
                 component = self.components[model_type]
                 model_parameters = parameters(model_type)
-                self.assertEqual(component["modelVersion"], "0.2.0")
+                expected_version = (
+                    "0.3.0" if model_type == "amesim_pnl0002" else "0.2.0"
+                )
+                self.assertEqual(component["modelVersion"], expected_version)
                 self.assertEqual(model_parameters["mode"]["editor"], "choice")
                 self.assertEqual(model_parameters["mode"]["options"], thermal_options)
                 self.assertEqual(

tests/test_pressure_flow_solver_initialization.py

@@ -11,6 +11,8 @@ from app.simulation.components.amesim.flow.orifices import (
 )
 from app.simulation.components.amesim.flow.pipes import AmesimPnl00r
 from app.simulation.components.amesim.flow.pipes import AmesimPnl0001
+from app.simulation.components.amesim.flow.pipes import AmesimPnl0002
+from app.simulation.components.amesim.junctions.nodes import AmesimPn3Node2
 from app.simulation.components.amesim.media.mediums import (
     AmesimHeliumPengRobinsonMedium,
 )
@@ -142,6 +144,49 @@ class PressureFlowSolverInitializationTests(unittest.TestCase):
         )
         self.assertAlmostEqual(valve.port_3.m_flow, -valve.port_2.m_flow, places=12)
 
+    def test_stream_dependent_pipe_flow_closes_with_junction_mixing_in_one_rhs(self) -> None:
+        medium = IdealGasMedium()
+        hot = Cylinder("hot", medium, V=0.1, p0=500_000.0, T0=400.0)
+        cold = Cylinder("cold", medium, V=0.1, p0=500_000.0, T0=250.0)
+        sink = Tank("sink", medium, V=0.1, p0=100_000.0, T0=300.0)
+        hot_line = AmesimPnl00r("hot_line", medium, diam=0.01, le=0.5)
+        cold_line = AmesimPnl00r("cold_line", medium, diam=0.01, le=0.5)
+        junction = AmesimPn3Node2("junction")
+        pipe = AmesimPnl0002(
+            "pipe",
+            medium,
+            diam=0.01,
+            le=1.0,
+            p0=200_000.0,
+            T0=300.0,
+        )
+        network = SimulationNetwork("stream-flow-fixed-point")
+        for component in (
+            hot,
+            cold,
+            sink,
+            hot_line,
+            cold_line,
+            junction,
+            pipe,
+        ):
+            network.add_component(component)
+        network.connect("hot", "port_b", "hot_line", "port_1")
+        network.connect("hot_line", "port_2", "junction", "port_1")
+        network.connect("cold", "port_b", "cold_line", "port_1")
+        network.connect("cold_line", "port_2", "junction", "port_3")
+        network.connect("junction", "port_2", "pipe", "port_1")
+        network.connect("pipe", "port_2", "sink", "port_a")
+
+        system = GenericFluidSystem(network)
+        state = system.consistent_initial_state_vector()
+        first = system.rhs(0.0, state)
+        second = system.rhs(0.0, state)
+
+        self.assertGreater(system.max_thermofluid_iterations, 1)
+        for first_value, second_value in zip(first, second):
+            self.assertAlmostEqual(first_value, second_value, places=10)
+
     def test_current_storage_pressure_reseeds_stale_orifice_ports_and_flow(self) -> None:
         network, medium, high, low, valve = self._near_equal_pressure_network()
         solver = PressureFlowSolver(network, max_evaluations=10)