added example info; swapped legacy CLI example

Author: markleader

README.md

@@ -105,6 +105,16 @@ with:
 The Python binding to CEA has been successfully compiled and executed on macOS,
 Linux, and Windows systems.
 
+## Examples
+
+Legacy CLI (classic `.inp` deck - run this from the `build/source` directory):
+
+    ./cea ../samples/example1
+
+Python example (runs the H2/O2 case after installing the Python bindings):
+
+    python source/bind/python/cea/samples/h2_02.py
+
 
 ## Manual Database Generation
 CEA requires thermodynamic and transport property databases. When using the

samples/example1.inp

@@ -0,0 +1,25 @@
+#  EXAMPLE 1:
+#     (a)  Assigned-temperature-and-pressure problem (tp).
+#     (b)  Reactants are H2 and Air.  Since "exploded" formulas are not given,
+#          these formulas will be taken from the thermodynamic data library,
+#          thermo.lib.
+#     (c)  Calculations are for two equivalence ratios (r,eq.ratio =1,1.5).
+#     (d)  Assigned pressures are 1, 0.1, and 0.01 atm (p(atm)=1,.1,.01).
+#     (e)  Assigned temperatures are 3000 and 2000 K (t(k)=3000,2000).
+#     (f)  'only' dataset is used to restrict possible products.
+#     (g)  Energy units in the final tables are in calories (calories).
+
+# 'problem' dataset:
+   problem case=Example-1 tp  p(atm)=1,.1,.01,t(k)=3000,2000,
+             r,eq.ratio=1,1.5
+# 'reactants' dataset:
+   reac
+     fuel= H2  moles = 1.
+     oxid= Air moles = 1.
+# 'only' dataset:
+   only  Ar    C   CO  CO2  H   H2   H2O  HNO   HO2   HNO2  HNO3  N   NH
+      NO   N2   N2O3  O  O2  OH  O3
+# 'output' dataset:
+   output calories
+# 'end' dataset
+   end