129940 20240116090136.0 doi 10.1007/s00348-019-2841-z sideral 115766 ART-2020-115766 eng López, Ana M. Universidad de Zaragoza (orcid)0000-0002-8451-0942 Advances in interferometric techniques for the analysis of the three-dimensional flow in a lid-driven cylindrical cavity 2020 Abstract: In this work, a qualitative and quantitative characterization of the three-dimensional flow in a lid-driven cylindrical cavity with different optical techniques is presented. Mach–Zehnder interferometry and photographic techniques have been used for a qualitative description of some flow features. However, the real challenge is to obtain quantitative measurements, as the cavity dimensions and geometry prevent the application of 3D digital techniques for measuring the flow velocity in the whole cavity with enough spatial resolution. Digital in-line holography was applied to the measure of the vortex-breakdown bubble that appears near the cavity bottom at Re = 2000. A 22 × 22 × 80 mm3 volume was recorded, its longest dimension parallel to the camera optical axis. This large volume in a liquid fluid combined with a high particle density forces us to develop new analysis strategies. Holograms have been analyzed using a new method, called Adaptive Cross Correlation with Tracking From Beginning, which includes the use of the reconstructed complex amplitude for particle localization. Particle tracking is based on the three-dimensional cross correlation of three-dimensional interrogation windows. The particle set defined in the first hologram is always used to find the particle position in subsequent holograms. This method provides an accurate 3D velocity map and the vortex-breakdown bubble spatial structure. Experimental and numerical data show a very good agreement. A new criterion for determining the accuracy in the particle position along the optical axis is introduced, achieving a spatial resolution of 0.1 mm. This tracking method can be applied not only to laminar flows but also to turbulent flows. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA-FEDER/Construyendo Europa desde Aragón info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-17R info:eu-repo/grantAgreement/ES/MINECO/DPI2016-75791-C2-2-P/1-P info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 2.48 2020 MECHANICS 65 / 135 = 0.481 2020 Q2 T2 ENGINEERING, MECHANICAL 58 / 133 = 0.436 2020 Q2 T2 1.01 2020 Computational Mechanics 2020 Q1 Physics and Astronomy (miscellaneous) 2020 Q1 Mechanics of Materials 2020 Q1 Fluid Flow and Transfer Processes 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Lobera, Julia Universidad de Zaragoza (orcid)0000-0001-7930-272X Andrés, Nieves Universidad de Zaragoza (orcid)0000-0003-2639-3562 Arroyo, M.Pilar Universidad de Zaragoza (orcid)0000-0001-5935-897X Palero, Virginia Universidad de Zaragoza (orcid)0000-0003-1955-6714 Sancho, Irene Vernet, Antón Pallarés, Jordi 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 5008 800 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Teoría Señal y Comunicac. 61, 1 (2020), 10 [14 pp.] Exp. fluids EXPERIMENTS IN FLUIDS 0723-4864 1666077 http://zaguan.unizar.es/record/129940/files/texto_completo.pdf Postprint 2057040 http://zaguan.unizar.es/record/129940/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:129940 articulos driver 2024-01-16-08:24:16 ARTICLE