Aerodynamics of Axisymmetric Counterflowing Jets

Carpio Huertas, Jaime and Liñán Martínez, Amable and Sánchez, Antonio L. and Williams, Forman A. (2017). Aerodynamics of Axisymmetric Counterflowing Jets. "Combustion and Flame", v. 177 ; pp. 137-143. ISSN 0010-2180. https://doi.org/10.1016/j.combustflame.2016.12.005.

Description

Title: Aerodynamics of Axisymmetric Counterflowing Jets
Author/s:
  • Carpio Huertas, Jaime
  • Liñán Martínez, Amable
  • Sánchez, Antonio L.
  • Williams, Forman A.
Item Type: Article
Título de Revista/Publicación: Combustion and Flame
Date: March 2017
Volume: 177
Subjects:
Freetext Keywords: Counterflow combustor, Strain rate, Impinging jets
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (683kB) | Preview

Abstract

The laminar flow resulting from impingement of two steadily fed low-Mach-number gaseous jets issu- ing into a stagnant atmosphere from coaxial cylindrical ducts at moderately large Reynolds numbers,often used in combustion experiments, is studied through numerical integrations of the Navier-Stokes equations. In the Reynolds-number range addressed, [50,1000], the flow of the approaching jets is nearlyinviscid, with viscous effects and mixing being restricted to the thin mixing layers surrounding the jetsand to a thin layer located at the separating stream surface. The analysis of the main inviscid flow showsthat only two parameters, based on the scales associated with the radius and the velocity profiles of thetwo feed streams, are needed to characterize the flow, namely, the ratio of the inter-jet separation dis- tance to the duct radius and the ratio of momentum fluxes of the jets. The numerical results for uniformand Poiseuille velocity profiles provide, in particular, the value of the strain rate at the stagnation pointfor use in the analysis of experimental studies of counterflow premixed and diffusion flames.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainCSD2010-00010UnspecifiedUnspecifiedUnspecified
Government of SpainMTM2015-67030-PUnspecifiedUnspecifiedUnspecified

More information

Item ID: 49803
DC Identifier: http://oa.upm.es/49803/
OAI Identifier: oai:oa.upm.es:49803
DOI: 10.1016/j.combustflame.2016.12.005
Official URL: https://www.sciencedirect.com/science/article/pii/S0010218016303686?via%3Dihub
Deposited by: Memoria Investigacion
Deposited on: 19 Apr 2018 17:03
Last Modified: 01 Apr 2019 22:30
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM