Vortex ring evolution in an impulsively started jet using digital particle image velocimetry and continuous wavelet analysis

被引：30
|
作者：
Schram, C [1 ]
Riethmuller, ML [1 ]
机构：
[1] Von Karman Inst Fluid Dynam, B-1640 Rhode St Genese, Belgium
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2001年 / 12卷 / 09期
关键词：
fluid flow velocity; vorticity; particle image velocimeter; flow diagnostics;
D O I：
10.1088/0957-0233/12/9/306
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Digital particle image velocimetry and wavelet analysis are combined in this work in order to study the characteristics of the leading vortex ring generated in an impulsively starting jet flow. The wavelet analysis allows one, by virtue of its properties of selectivity in space and scale, to detect coherent structures and to compute their position and size and, through further processing, their convection velocity and circulation. It has been observed that the energy of the leading vortex ring continuously increases even after it has pinched off from the jet shear layer generating it.
引用
收藏
页码：1413 / 1421
页数：9
相关论文
共 50 条
  • [41] Experimental investigation into the vortex formation in the wake of an oscillating cylinder using particle image velocimetry
    de Wilde, J. J.
    Huijsmans, R. H. M.
    Tukker, J.
    PROCEEDINGS OF THE SIXTEENTH (2006) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 3, 2006, : 798 - 805
  • [42] Measurements of the orthogonal blade-vortex interaction using a particle image velocimetry technique
    Green, RB
    Doolan, CJ
    Cannon, RM
    EXPERIMENTS IN FLUIDS, 2000, 29 (04) : 369 - 379
  • [43] Vortex Measurement at Bell-Shaped Pump Inlet Using Particle Image Velocimetry
    Batcha, Muhammad Azhar Alcbar
    Norizan, Tajul Aiiffm
    Abidin, Zulkhairi Zainol
    Harun, Zambri, I
    Mohtar, Wan Hanna Melini Wan
    JURNAL KEJURUTERAAN, 2018, 30 (02): : 209 - 217
  • [44] Flow analysis of vortex generators on wing sections by stereoscopic particle image velocimetry measurements
    Velte, C. M.
    Hansen, M. O. L.
    Cavar, D.
    ENVIRONMENTAL RESEARCH LETTERS, 2008, 3 (01)
  • [45] Locomotor forces on a swimming fish: Three-dimensional vortex wake dynamics quantified using digital particle image velocimetry
    Drucker, EG
    Lauder, GV
    JOURNAL OF EXPERIMENTAL BIOLOGY, 1999, 202 (18): : 2393 - 2412
  • [46] Using Particle Image Velocimetry to Visualize Jet Impingement Flow Mechanics on Modified Surfaces
    Smith, Aaron H.
    Bhavnani, Sushil H.
    Knight, Roy W.
    IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, 2024, 14 (04): : 585 - 592
  • [47] Analysis of turbulence energy spectrum by using particle image velocimetry
    Hoque, Mohammad Mainul
    Sathe, Mayur J.
    Joshi, Jyeshtharaj B.
    Evans, Geoffrey M.
    10TH INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING (ICME 2013), 2014, 90 : 320 - 326
  • [48] Investigation into the hydrodynamics of gas-solid fluidized beds using particle image velocimetry coupled with digital image analysis
    Laverman, Jan Albert
    Roghair, Ivo
    Annaland, Martin van Sint
    Kuipers, Hans
    CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2008, 86 (03): : 523 - 535
  • [49] A study on a lobed jet mixing flow by using stereoscopic particle image velocimetry technique
    Hu, H
    Saga, T
    Kobayashi, T
    Taniguchi, N
    PHYSICS OF FLUIDS, 2001, 13 (11) : 3425 - 3441
  • [50] High accuracy measurement of unsteady flows using digital particle image velocimetry
    Funes-Gallanzi, M
    OPTICS AND LASER TECHNOLOGY, 1998, 30 (6-7): : 349 - 359
12345