Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN Печать: 1065-3090
ISSN Онлайн: 1940-4336

Том 27, 2020 Том 26, 2019 Том 25, 2018 Том 24, 2017 Том 23, 2016 Том 22, 2015 Том 21, 2014 Том 20, 2013 Том 19, 2012 Том 18, 2011 Том 17, 2010 Том 16, 2009 Том 15, 2008 Том 14, 2007 Том 13, 2006 Том 12, 2005 Том 11, 2004 Том 10, 2003 Том 9, 2002 Том 8, 2001 Том 7, 2000 Том 6, 1999 Том 5, 1998 Том 4, 1997 Том 3, 1996 Том 2, 1995 Том 1, 1993

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v9.i1.20
14 pages


Julien Reveillon
CORIA UMR 6614, University of Rouen, Technopole du Madrillet, BP 12, 76801 Saint-Etienne-du-Rouvray Cedex, France
K. Canneviere
University of Rouen, UMR CNRS 6614 CORIA, Avenue de l’Universite - BP 8, FR-76801 Saint Etienne du Rouvray Cedex, France

Краткое описание

The objective of this paper is to show the effect of a solid (or nonvaporizing) dipersed phase on the turbulent structures of an impinging jet. Direct numerical simulation (DNS) has been carried out to fully describe the turbulence evolution from the jet destabilization up to the breakup of the structures. A Lagrangian solver has been coupled to the DNS code to describe precisely the interactions between the particles and the gas. Two kinds of particles have been considered: (1) incident particles that are embedded in the jet at the injection level. These particles modify strongly the turbulence characteristics and increase heat transfer from the jet; (2) when incident particles are impacting on the wall, very small ejecta (particles of carbon) may be emitted and, in this case, heat fluxes decrease because of strong turbulent mixing close to the wall. Creation of small swirling structures as well as core of recirculation close to the wall could be detected thanks to numerical visualization of nonstationary flows.