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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN Печать: 1065-3090
ISSN Онлайн: 1940-4336

Выпуски:
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Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v1.i4.90
pages 371-384

COMPARISON BETWEEN CLASSICAL AND THREE-COLOR PIV IN A WAKE FLOW

Antonio Cenedese
Department of Hydraulics Transportations and Roads, "Sapienza" University of Rome, Via Eudossiana 18, 00184 Rome, Italy
Giovanni Paolo Romano
Department of Mechanics and Aeronautics, University "La Sapienza" Roma, 00184 Rome, Italy

Краткое описание

The image analysis of flow tracers, particle image velocimetry, or PIV, is performed with two methods: classical, based on the individuation of successive positions of tracers on multiex-posed frames, and a new method in which tracer particle displacements are identified by means of two dots connected by a streakline. Such a pattern is obtained by overlapping, in the investigated section, three sheets of different colors. Many advantages are retained: simple displacement detection, direction identification, ambiguity elimination, and high dynamical and angular ranges. Classical and new methods are compared in the near wake of a car model into a water channel flow.