接入test_mql pneumatic_69传输焓RHS

PythonModels/components/amesim_pneumatic_line.py

@@ -343,10 +343,10 @@ class AmesimPnl0001Pipe(_DarcyPipeResistanceMixin, DynamicComponent):
         connected_h_2: float,
     ) -> VolumeState:
         internal = self.properties()
-        # PNL0001 is a fixed-volume distributed line store. Its transported
-        # energy variable therefore follows specific internal energy, not the
-        # chamber-style stagnation enthalpy contract. For this ideal gas,
-        # h = gamma * u. Outflow always carries the local u.
+        # Default first-pass PNL0001 behavior uses the historical internal-energy
+        # approximation. AMESim-specific transport-enthalpy corrections are kept
+        # behind derivatives_from_transport_enthalpy_connections so they can be
+        # applied only where validated against baseline data.
         inlet_u_1 = (
             connected_h_1 / self.gas.gamma
             if port_1_m_flow > 0.0
@@ -367,6 +367,27 @@ class AmesimPnl0001Pipe(_DarcyPipeResistanceMixin, DynamicComponent):
             U=port_1_m_flow * inlet_u_1 + port_2_m_flow * inlet_u_2 + heat_flow,
         )
 
+    def derivatives_from_transport_enthalpy_connections(
+        self,
+        *,
+        port_1_m_flow: float,
+        connected_h_1: float,
+        port_2_m_flow: float,
+        connected_h_2: float,
+    ) -> VolumeState:
+        internal = self.properties()
+        inlet_h_1 = connected_h_1 if port_1_m_flow > 0.0 else internal.h
+        inlet_h_2 = connected_h_2 if port_2_m_flow > 0.0 else internal.h
+        heat_flow = (
+            self.heat_transfer_coefficient
+            * self.heat_transfer_area
+            * (self.external_temperature - internal.T)
+        )
+        return VolumeState(
+            m=port_1_m_flow + port_2_m_flow,
+            U=port_1_m_flow * inlet_h_1 + port_2_m_flow * inlet_h_2 + heat_flow,
+        )
+
 
 class AmesimPnl0003Pipe(_DarcyPipeResistanceMixin, DynamicComponent):
     """First-pass AMESim ``PNL0003`` (C-R-C) pipe.