Post-Processing Method Using Ellipsoidal Equation for Particle Tracking Velocimetry Measurement Results

(Extension to Unsteady Flow/Mismatched Vector Detection/Application to Experimental Data)

Abstract

Our previous study confirmed that ellipsoidal differential equations can be used to interpolate particle tracking velocimetry (PTV) measurement results. In the preset study, we deal with extensions of the equations; to time serial processing and to the detection of mismatched vectors. The performance of these algorithms is evaluated by using the flow around a rectangular cylinder and a vortex flow. Furthermore, the actual advantages of utilization of these methods are discussed by applying them to the experimental result of sudden vortex generation due to the collision of a circular cylinder with a flat wall.