补充氦气Peng-Robinson物性库

tests/test_test_mql_config.py

@@ -16,6 +16,8 @@ class TestMqlConfigTest(unittest.TestCase):
         self.assertEqual(config.global_parameters["Pdq"], 1.0)
         self.assertEqual(config.global_parameters["V"], 15.0)
         self.assertEqual(config.global_parameters["cf"], 0.45)
+        self.assertEqual(config.fluid.name, "helium")
+        self.assertAlmostEqual(config.fluid.specific_gas_constant, 2077.3, delta=0.5)
 
     def test_resolves_amesim_parameter_expressions(self) -> None:
         variables = {"D2": 20.0, "P0": 153.0, "cf": 0.45}