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Title: Numerical solution of three-dimensional rectangular submerged jets with the evidence of the undisturbed region of flow
Authors: Angelino, Matteo
Boghi, Andrea
Gori, Fabio
Issue Date: 2016
Publisher: © Taylor and Francis
Citation: ANGELINO, M., BOGHI, A. and GORI, F., 2016. Numerical solution of three-dimensional rectangular submerged jets with the evidence of the undisturbed region of flow. Numerical Heat Transfer, Part A: Applications, 70 (8), pp. 815-830.
Abstract: The evolution of turbulent rectangular submerged free jets has been investigated numerically with a two-dimensional (2D) approach by the present authors and, by using the large eddy simulations (LES) at several Reynolds numbers. The average numerical results confirmed the presence of the undisturbed region of flow (URF) located between the slot exit and the beginning of the potential core region (PCR) previously observed experimentally at the University of Rome “Tor Vergata” by Gori and coworkers. The 2D study of the present authors carried out under the conditions previously investigated in the literature, showed that the URF has a self-similar behavior, and proposed a new law for the evolution of the momentum. The present paper extends the LES to three-dimensional (3D) rectangular submerged free jets, in the range from Re = 5,000 to Re = 40,000, showing that the self-similar behavior of URF is also present in the 3D numerical simulations, as well as in the PCR and in the fully developed region (FDR).
Description: This is an Accepted Manuscript of an article published by Taylor & Francis in Numerical Heat Transfer, Part A: Applications on 20th September 2016, available online: http://www.tandfonline.com/10.1080/10407782.2016.1214494.
Sponsor: This project has been supported by CINECA/CASPUR with grant number std12-038.
Version: Accepted for publication
DOI: 10.1080/10407782.2016.1214494
URI: https://dspace.lboro.ac.uk/2134/22847
Publisher Link: http://dx.doi.org/10.1080/10407782.2016.1214494
ISSN: 1040-7782
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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