Three-dimensional measurement of fluid flow by stereoscopic tracking velocimetry

David J. Lee; Soyoung Stephen Cha

doi:10.1117/12.509499

29 April 2003 Three-dimensional measurement of fluid flow by steroscopic tracking

David J. Lee, Soyoung Stephen Cha

Proceedings Volume 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002; (2003) https://doi.org/10.1117/12.509499
Event: Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, 2002, Beijing, China

Abstract

Convective motion in fluid dynamics and heat transfer is the most important phenomenon to be understood since it can greatly influence the performances of fluid and heat transfer systems in various manners. With the advances of modern technologies, new diagnostics for mapping 3D convective flow is veyr necessary for fundamentals of flow physics. Especially, modern computational modeling has been greatly advanced to demand 3D convective-flow diagnostics in order to verify and tune the methodologies and approaches. Conventional velocimetry is either pointwise or 2D. If available, 3D gross-field velocimetry can allow us unprecedented physical insight as well as the needed data for validation of numerical codes and understanding of funamental flow physics. In an effort to meet the need of 3D flow diagnostics, we have developed stereoscopic tracking velocimetry (STV). STV is based on the simultaneous stereoscopic monitoring of numerous particles dispersed in a carrier fluid. It can thus provide time-sequence velocity maps of an entire flow field. Here we briefly present the methodology of STV and its experimental measurement results of 3D flow fields including the traditional flow involving a free jet and the directional solidification for material processing.

Citation Download Citation

David J. Lee and Soyoung Stephen Cha "Three-dimensional measurement of fluid flow by steroscopic tracking", Proc. SPIE 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, (29 April 2003); https://doi.org/10.1117/12.509499

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