Velocity Field Analysis for Edge Turbulence Imaging
نویسنده
چکیده
Submitted for the DPP07 Meeting of The American Physical Society Velocity Field Analysis for Edge Turbulence Imaging B.T. BROWN, T. MUNSAT, Center for Integrated Plasma Studies, University of Colorado, C. HOLLAND, G. TYNAN, Dept. Mechanical and Aerospace Engineering, UCSD — Techniques for extracting time-resolved 2-D velocity maps have been developed for turbulence imaging diagnostics. A hybrid technique combining optical flow and local pattern matching has been implemented to overcome the individual limitations of each when used with data of limited temporal and/or spatial resolution. The codes have been validated for a variety of test patterns of convective flow, including highly sheared cases. Recent work includes detailed consideration of the velocity divergence in the 2-D plane, and its significance to the derived results. We present comparison and validation studies to various artificial datasets with known velocity profiles, including sets with significant curl. Benjamin Brown University of Colorado Date submitted: 20 Jul 2007 Electronic form version 1.4
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