2D flows over a NACA 643-618 at Re=64,200 at a=8.64°, 11.24°, and 13.84° are simulated numerically using FLUENT. Spatial and temporal resolution studies indicate the need for a sufficiently fine spatial and temporal resolution to properly capture the dominant flow features (e.g. vortex shedding, bubble bursting). At a=8.64°, a long laminar separation bubble (LSB) containing a small counter rotating region is present. Vortex shedding results in immediate roll up and separation from the surface of the airfoil; there is no vortex pairing. Vortex shedding and bubble flapping is determined by correlating probe data and instantaneous flow fields. A discernable fundamental frequency, corresponding to vortex shedding, is present in aerodynamic coefficients data and vorticity probe data. Vertical and horizontal flapping is noticeable. The periodicity of the flow is further supported through the local intermittency measure (LIM); LIM is dominated by an intermittency value of one, indicating perfect periodicity. Time averaging is well posed and independent of time interval. Intermittent bubble bursting and vortex shedding is present at a=11.24°. The LSB changes from a short to a long bubble. A low frequency bubble bursting is detected from aerodynamic coefficient data and probe data. Bubble bursting is quasi-periodic with a clistribution of frequency around 5.542 Hz, indicative of intermittency. At short or long bubble instances, the primary reattachment and vortex sheddling outline has time dependent shape, motion, and location. Vortex shedding involves vortex pairing at time dependent locations. Location dependent vortex shedding frequencies and associated frequency distribution in the probe data and aerodynamic coefficient demonstrates intermittent vortex shedding. LIM is dominated by regions of peak intermittency at low frequencies and high frequencies, indicating a high degree of intermittency. Low frequency LIM is in agreement with the vorticity magnitude spikes encountered in probe data for probes located in the vicinity of the LSB. Time averaged pressure and skin friction coefficient distributions for different time intervals produce different results; time averaging is ill-posed as the averages are time interval dependent. Flow at a=13.84, may be considered as a transition of the behavior exhibited at a=11.24° to higher angle of attack.