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Particle Image Velocimetry and Thermometry for Two‐Phase Flow Problems
Author(s) -
KOWALEWSKI TOMASZ A.
Publication year - 2002
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.2002.tb04575.x
Subject(s) - particle image velocimetry , particle tracking velocimetry , tracking (education) , velocimetry , computation , flow (mathematics) , image processing , mechanics , phase (matter) , two phase flow , bubble , fluid mechanics , flow velocity , computer science , materials science , physics , image (mathematics) , artificial intelligence , algorithm , turbulence , psychology , pedagogy , quantum mechanics
A bstract : Image processing in fluid mechanics has become an important quantitative tool for flow analysis. The feasibility of simultaneous measurements of instantaneous velocity and temperature fields, as well as for tracking interfaces, creates a functional tool to describe thermally driven flows accompanied by phase change. The information thus gathered is essential for the verification and validation of computation models. The paper reviews the image processing methods developed by the author and his coworkers to analyze typical problems of two‐phase flow. Simultaneous measurement of temperature and velocity fields, obtained by using liquid crystal tracers, are applied to elucidate solidification and growing vapor bubble problems.