5th International Symposium on Particle Image Velocimetry, PIV'03

Abstract

The advent of particle image velocimetry (PIV) in the late 20th century brought about a paradigm change in the technique of flow field measurement,from point measurement to field measurement. This revolution is a result of the recent advances in computers, video cameras, optics and lasers and a deeper understanding of the theory of image processing, and such advances continue by keeping pace with leading-edge technologies such as biotechnology, nanotechnology and so forth. Recently, the PIV technique has been extended in new directions such as stereoscopic PIV, holographic PIV, dynamic PIV, micro PIV and simultaneous PLIF/PIV techniques.This special issue contains research dealing with many of the most recent developments in PIV. The papers were selected from more than 120 papers presented at the 5th International Symposium on Particle Image Velocimetry (PIV'03) held in Busan, Korea, during 22–24 September 2003. Special thanks are due to the invited speakers who have contributed their original work to this special issue,which will enhance the academic reputation of Measurement Science and Technology (MST).Fourteen papers were selected by the Scientific Committee of PIV'03. After the standard refereeing process of MST, nine papers were finally accepted for publication. The selected papers can be categorized into three groups: new PIV algorithms and evaluation methods, three-dimensional velocity field measurement techniques and micro/bio PIV applications. As a new PIV technique, Lecuona et al introduced PIV evaluation algorithms for industrial applications having high shear flow structures. Billy et al used a single-pixel-based cross-correlation method for measuring flow inside a microchannel. Foucaut et al carried out PIV optimization using spectral analysis for the study of turbulent flows. Doh et al applied a 3D PTV method to the wake behind a sphere using three CCD cameras. Hori and Sakakibara developed a high-speed scanning stereoscopic PIV system and applied it to a turbulent round jet. In addition, Watanabe et al measured leading-edge vortices on a cranked arrow wing using a stereoscopic PIV technique. In the field of micro/bio applications, S K Kim and Chung investigated airflow in the nasal cavity using tomographic PIV techniques. B J Kim et al carried out micro PIV measurement of two-fluid flow with different refractive indices, Kang et al visualized flow inside a small evaporating droplet.We wish to thank the editors of MST for making it possible to publish thisspecial issue from PIV'03. We also wish to thank the authors for their careful and insightful work and their cooperation in preparing their revised papers. Finally, we hope that readers will find this special issue to be a useful compilation of the state-of-the-art in PIV.