119946 20250422120332.0 doi 10.1007/s00348-022-03497-4 sideral 130634 ART-2022-130634 eng Lobera, Julia Universidad de Zaragoza (orcid)0000-0001-7930-272X Large field Digital Image Plane Holography with a double cavity high speed laser 2022 Access copy available to the general public Unrestricted The three velocity components in a fluid plane can be measured by applying Digital Image Plane Holography. This technique is limited by the laser coherence length, which reduces its application with high speed lasers that, generally, have a very short coherence length. In addition, the use of a double cavity can also imply a small wavelength difference between the two laser beams. In this work, we present an improved Optical Path Length Enlarging Device that allows the velocity measurement, in a 2D field whose width is four times larger than the laser coherence length. The optical set-up and the procedure for measuring in a larger field (ten times the laser coherence length) were optimized, and the issues derived from the laser spatial and temporal coherence and wavelength changes were analyzed and solved. Digital Image Plane Holography with the Optical Path Length Enlarging Device and Particle Image Velocimetry were applied for measuring the whole velocity field in the central plane of a cylindrical cavity with a rotating lid, for two Reynolds numbers (800 and 2000), showing both of them a very good agreement with the numerical simulations. info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-17R info:eu-repo/grantAgreement/ES/MICINN/PID2020-113303GB-C22 info:eu-repo/grantAgreement/ES/MINECO/CTQ2013-46799-C2-2-P/1-P info:eu-repo/grantAgreement/ES/MINECO/DPI2016-75791-C2-2-P/1-P info:eu-repo/grantAgreement/ES/UZ/UZ2020-CIE-04 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.4 2022 MECHANICS 70 / 137 = 0.511 2022 Q3 T2 ENGINEERING, MECHANICAL 71 / 136 = 0.522 2022 Q3 T2 0.764 2022 Computational Mechanics 2022 Q1 Physics and Astronomy (miscellaneous) 2022 Q1 Mechanics of Materials 2022 Q1 Fluid Flow and Transfer Processes 2022 Q1 4.9 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Arroyo, Mª Pilar Universidad de Zaragoza (orcid)0000-0001-5935-897X Roche, Eva Mª (orcid)0000-0003-1183-7052 Andrés, Nieves Universidad de Zaragoza (orcid)0000-0003-2639-3562 Sancho, Irene Vernet, Antón Pallarés, Jordi Palero, Virginia Universidad de Zaragoza (orcid)0000-0003-1955-6714 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 63, 9 (2022), 150 [17 pp.] Exp. fluids EXPERIMENTS IN FLUIDS 0723-4864 7960030 http://zaguan.unizar.es/record/119946/files/texto_completo.pdf Versión publicada 1859523 http://zaguan.unizar.es/record/119946/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:119946 articulos driver 2025-04-22-12:01:40 ARTICLE