对齐PNVO近等压层流平滑

2026-08-05 12:59:05 +00:00
1 parent e9fc855a1c
commit 40c72422ff
@@ -144,6 +144,96 @@ class AmesimPnvo001FixedOpeningComponentTests(unittest.TestCase):
            delta=1.0e-8,
        )

+    def test_helium_laminar_transition_matches_amesim_baseline(self) -> None:
+        medium = AmesimHeliumPengRobinsonMedium()
+        valve = AmesimPnvo001FixedOpening(
+            "valve_1",
+            medium,
+            cq=0.45,
+            area0=78.5e-6,
+            opening=1.0,
+        )
+        cases = (
+            # p_up [PaA], p_down [PaA], T_up [K], dm [g/s], Cm, velocity [m/s]
+            (
+                10_837_357.913884956,
+                10_835_428.362241976,
+                255.45507181057303,
+                9.770711291393273,
+                4.07922685863417e-4,
+                13.951480313568323,
+            ),
+            (
+                10_735_827.842429036,
+                10_735_543.135671863,
+                254.49635939397584,
+                3.4711877823059916,
+                1.4601624857015259e-4,
+                4.982778680076626,
+            ),
+            (
+                10_703_773.135050302,
+                10_703_621.857082237,
+                254.1925398502598,
+                1.53560321377487,
+                6.475023461883112e-5,
+                2.208065833961227,
+            ),
+            (
+                10_682_359.261700785,
+                10_682_301.022976216,
+                253.98926908210996,
+                0.25626141624058846,
+                1.0822847918204546e-5,
+                0.36890236539556787,
+            ),
+            (
+                10_678_100.351449525,
+                10_678_093.704329137,
+                253.94881208705195,
+                0.0033658306146710985,
+                1.421965896377586e-7,
+                0.004846389527047451,
+            ),
+        )
+
+        for (
+            p_up,
+            p_down,
+            T_up,
+            expected_dm,
+            expected_cm,
+            expected_velocity,
+        ) in cases:
+            with self.subTest(pressure_difference=p_up - p_down):
+                mass_flow_parameter, gas_velocity = (
+                    valve._one_way_flow_characteristics(
+                        upstream_pressure=p_up,
+                        downstream_pressure=p_down,
+                        upstream_temperature=T_up,
+                    )
+                )
+                mass_flow_g_s = (
+                    valve._one_way_mass_flow(
+                        upstream_pressure=p_up,
+                        downstream_pressure=p_down,
+                        upstream_temperature=T_up,
+                    )
+                    * 1.0e3
+                )
+
+                self.assertAlmostEqual(mass_flow_g_s, expected_dm, delta=1.0e-11)
+                self.assertAlmostEqual(
+                    mass_flow_parameter,
+                    expected_cm,
+                    delta=1.0e-15,
+                )
+                self.assertAlmostEqual(
+                    gas_velocity,
+                    expected_velocity,
+                    delta=5.0e-10,
+                )
+

 if __name__ == "__main__":
    unittest.main()