|
Organizers |
PIV Animation of Turbulent Flows from 2-D Inclined Rectangular Prisms
by
Young-Ho Lee
School of Mechanical Engineering, Korea Maritime University
Coauthors: Jang-Woon Choi (Image Information technology Co.), Yu-Chung IM (Graduate School, KMU), Geun-Taek Song (Graduate School, KMU)
Fully developed turbulent wake flows from two-dimensional rectangular prisms(D/H=1, 2, 3) with several inclined angle of attacks were recorded for PIV analysis by using circular free surface water channel. Reynold number is 20,000.
High-resolution CCD camera was adopted for image acquisition on NTSC format. Continuous PIV data were obtained via cross-correlation identification by frame by frame analysis. Animation procedure not relying on commercial post-processor was developed and its deta ils are mentioned. Various animation AVI file images such as velocity vector distribution, vorticity shedding pattern and streaklines were produced and they are displayed directly on PC monitor in real-time sense. Intrinsic understanding of complicated bl uff body turbulent flows is easily accessible through this original animation in-line software. And some recent PIV works made by Flow Informatics Lab in Korea Maritime University will be introduced.
Date received: January 29, 1999
Copyright © 1999 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cacp-20.