[thermo] Add convenience class for liquid-water-IAPWS95

data/liquidvapor.yaml

@@ -25,6 +25,18 @@ phases:
     T: 300.0
     P: 1.01325e+05
   pure-fluid-name: water
+- name: liquid-water
+  elements: [O, H]
+  species: [H2O]
+  thermo: liquid-water-IAPWS95
+  transport: water
+  state:
+    T: 300.0
+    P: 1.01325e+05
+  note: |-
+    Phase definition based on "The IAPWS Formulation 1995 for the
+    Thermodynamic Properties of Ordinary Water Substance for General and
+    Scientific Use," J. Phys. Chem. Ref. Dat, 31, 387, 2002.
 - name: nitrogen
   thermo: pure-fluid
   elements: [N]

interfaces/cython/cantera/liquidvapor.py

@@ -15,6 +15,19 @@ def Water():
     return WaterWithTransport('liquidvapor.yaml', 'water', transport_model='Water')
 
 
+def LiquidWater():
+    """
+    Create a `PureFluid` object using the IAPWS Formulation 1995 for
+    thermodynamic properties and the `WaterTransport` class for viscosity
+    and thermal conductivity.
+    """
+    class WaterWithTransport(PureFluid, _cantera.Transport):
+        __slots__ = ()
+
+    return WaterWithTransport('liquidvapor.yaml', 'liquid-water',
+                              transport_model='Water')
+
+
 def Nitrogen():
     """Create a `PureFluid` object using the equation of state for nitrogen."""
     return PureFluid('liquidvapor.yaml', 'nitrogen')