Changes to the case file to support new rotational system

Author: danieljvickers

examples/2D_ibm_airfoil/case.py

@@ -94,7 +94,7 @@
             "patch_ib(1)%t": 0.15,
             "patch_ib(1)%p": 0.4,
             "patch_ib(1)%m": 0.02,
-            "patch_ib(1)%angles(3)": -0.5235987756, # 30 degrees clockwise rotation, in radians
+            "patch_ib(1)%angles(3)": -0.5235987756,  # 30 degrees clockwise rotation, in radians
             # Fluids Physical Parameters
             # Use the same stiffness as the air bubble
             "fluid_pp(1)%gamma": 1.0e00 / (gam_a - 1.0e00),  # 2.50 (Not 1.40)