doi:10.1016/j.powtec.2015.11.035engJulián, I.González, D.Herguido, J.Menéndez, M.Use of a-shapes for the measurement of 3D bubbles in fluidized beds from two-fluid model simulationsART-2016-93197A geometrical technique based on shape construction was employed to reconstruct the simulated domain of 3D bubbles in a gas-solid fluidized bed, from two-fluid model (TFM) simulations. The Delaunay triangulation of the cloud of points that represent volume fraction iso-surfaces in transient TFM simulations was filtered by means of the so-called a-shapes, allowing a topologically accurate description of 3D bubbles within a fluidized bed. Consequently, individual 3D bubble properties such as size and velocity were measured. Simulated bubble characteristics were further compared to those measured on pseudo-2D bed facilities by image techniques in order to illustrate the effect of the bed geometry on the bubbling behavior under mimicked operational conditions.2016http://zaguan.unizar.es/record/5835310.1016/j.powtec.2015.11.035http://zaguan.unizar.es/record/58353oai:zaguan.unizar.es:58353info:eu-repo/grantAgreement/ES/MINECO/ENE2013-44350-RPOWDER TECHNOLOGY 288 (2016), 409-421by-nc-ndhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccess