|
| Abstract No.: |
|
| Title: |
Accuracy of 2D particle image velocimetry measurements in thermal spraying processes
|
|
| Authors: |
Lars Rockstroh* / Stuttgart University /
Institute of Parallel and Distributed Systems, Germany
Simeon Wahl / Institute Institute of Parallel and Distributed Systems, Germany
Sven Simon/ Institute Institute of Parallel and Distributed Systems, Germany
Rainer Gadow/ Institute for Manufacturing Technologies of Ceramic Components and Composites, Germany
|
|
| Abstract: |
2D Particle Image Velocimetry (2D PIV) is one of the most commonly used methods for measuring particle velocities in thermal spraying processes due to its basic measurement setup and the extensive measurement volume compared to methods based on point sensors. The accuracy of PIV in general depends on the measurement algorithm and the error of the imaging system. However, in the case of 2D PIV, accuracy is further reduced due to the fact that 2D methods measure only two of the three velocity vector components while ignoring the third component. In this paper, the reliability of 2D PIV measurement algorithms and the error contribution of the imaging system are investigated based on an analysis tool previously presented. The error contribution of measuring only two of the three velocity vector components with 2D methods is quantified and it is shown that this error contribution is within acceptable limits for thermal spraying processes.
|
|