补充pn2pipefr候选流量诊断

tests/test_amesim_pnl0001_pipe.py

@@ -39,6 +39,24 @@ class AmesimPnl0001PipeTests(unittest.TestCase):
         self.assertLess(reverse, 0.0)
         self.assertAlmostEqual(abs(forward), abs(reverse), delta=abs(forward) * 0.01)
 
+    def test_pn2pipefr_candidate_flow_follows_pressure_gradient(self) -> None:
+        forward = self.pipe.pn2pipefr_mass_flow(
+            port_1_pressure_pa=15.31e6,
+            port_1_temperature_k=293.15,
+            port_2_pressure_pa=15.3e6,
+            port_2_temperature_k=293.15,
+        )
+        reverse = self.pipe.pn2pipefr_mass_flow(
+            port_1_pressure_pa=15.29e6,
+            port_1_temperature_k=293.15,
+            port_2_pressure_pa=15.3e6,
+            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_calibrated_linear_conductance_overrides_darcy_flow(self) -> None:
         pipe = AmesimPnl0001Pipe(
             name="linear",

tests/test_run_test_mql_full_state_comparison.py

@@ -257,6 +257,8 @@ class RunTestMqlFullStateComparisonScriptTests(unittest.TestCase):
                     amesim_pressure_drop_pa=1297629.6,
                     current_darcy_pressure_drop_pa=422633.2,
                     pressure_drop_multiplier=3.07,
+                    candidate_pn2pipefr_dm1_g_s=424.2,
+                    candidate_pn2pipefr_to_amesim_dm1_ratio=1.01,
                     amesim_linear_conductance_kg_s_sqrt_k_per_pa=5.56e-6,
                     python_linear_conductance_kg_s_sqrt_k_per_pa=1.06e-5,
                     python_to_amesim_linear_conductance_ratio=1.91,
@@ -319,6 +321,8 @@ class RunTestMqlFullStateComparisonScriptTests(unittest.TestCase):
         self.assertIn("pressure_loss@pneumatic_69", summary)
         self.assertIn("cm=0.0159", summary)
         self.assertIn("dp_multiplier=3.07", summary)
+        self.assertIn("candidate_pn2pipefr_dm1=424.2", summary)
+        self.assertIn("candidate_pn2pipefr_ratio=1.01", summary)
         self.assertIn("amesim_linear_k=5.56e-06", summary)
         self.assertIn("python_linear_k=1.06e-05", summary)
         self.assertIn("linear_k_ratio=1.91", summary)