The purpose of the present paper is to study experimentally a free impinging axisymmetric jet on a moving surface. Comparisons of the experimental data and the numerical simulations using Star CD software have been made in order to validate the numerical

A previously reported stereoscopic tracking velocimetry (STV) is further refined and applied to measure directional solidification. The flow involves complicated three-dimensional (3-D) convection, being subject to both buoyancy and surface tension forces in addition to conjugate conduction. For our STV, the 3-D tracking of numerous particles is the most important and challenging process. Here, the performances of the tracking algorithms, which are based on artificial neural networks, are first presented with a brief summary of the STV principles. The 3-D experiment measurements of the convective phenomena are then discussed together with the results from two-dimensional numerical modeling for qualitative comparison.