Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Heat Transfer Research
Factor de Impacto: 0.404 Factor de Impacto de 5 años: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN En Línea: 2162-6561

Volumes:
Volumen 50, 2019 Volumen 49, 2018 Volumen 48, 2017 Volumen 47, 2016 Volumen 46, 2015 Volumen 45, 2014 Volumen 44, 2013 Volumen 43, 2012 Volumen 42, 2011 Volumen 41, 2010 Volumen 40, 2009 Volumen 39, 2008 Volumen 38, 2007 Volumen 37, 2006 Volumen 36, 2005 Volumen 35, 2004 Volumen 34, 2003 Volumen 33, 2002 Volumen 32, 2001 Volumen 31, 2000 Volumen 30, 1999 Volumen 29, 1998 Volumen 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v41.i8.70
pages 889-900

Experimental Study of Heat Transfer from Impinging Jet with Upstream and Downstream Crossflow

Daniel Thibault
Laboratoire d'Etudes Thermiques - UMR CNRS 6608 ENSMA - University of Poitiers, BP 40109 - 86961 Chasseneuil Cedex France
Matthieu Fenot
Institut Pprime, Departement Fluides, Thermique et Combustion. Laboratoire d'Etudes Thermiques - UMR CNRS 6608 ENSMA - University of Poitiers, BP 40109 - 86961 Chasseneuil Cedex France
Gildas Lalizel
Institut Pprime, Departement Fluides, Thermique et Combustion. Laboratoire d'Etudes Thermiques - UMR CNRS 6608 ENSMA - University of Poitiers, BP 40109 - 86961 Chasseneuil Cedex France
Eva Dorignac
Institut Pprime, Departement Fluides, Thermique et Combustion. Axe COST. ENSMA - Universite de Poitiers - BP 40109. 1, avenue Clement ADER. 86961 Futuroscope CHASSENEUIL cedex

SINOPSIS

Numerous geometrical and flow parameters can affect the heat transfer in the impinging jet cooling methods. In this study, a configuration close to a real case of vane cooling was adopted. It consists of a main crossflow flowing into an injection hole of diameter D perpendicular to the main flow through a thin plate of thickness t equal to D and the Reynolds number of the injection is fixed to 23,000. A secondary crossflow with a Reynolds number of 1000 is fixed between the exit of the jet and the impingement region, to simulate the flow stream evacuation from the leading edge to the trailing edge of the vane. This geometry is very different from a jet issued from a long pipe as described in many previous studies. The flow field of the jet in the present case has a three-dimensional behavior due to its complex geometry. High levels of turbulence at the exit of the nozzle are observed with Particle Image Velocimetry measurements. The fields of the reference temperature and convective heat transfer coefficient on the impingement surface are calculated from infrared thermography measurements. The results show a significant drop of the heat transfer in such geometry.


Articles with similar content:

EXPERIMENTAL STUDY OF HEAT TRANSFER FROM IMPINGING JET WITH UPSTREAM AND DOWNSTREAM CROSSFLOW
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2009, issue
Eva Dorignac, Daniel Thibault, Matthieu Fenot, Gildas Lalizel
Influence of pressure fluctuations distribution on local heat transfer on flat surface impinged by turbulent free jet
ICHMT DIGITAL LIBRARY ONLINE, Vol.2, 2004, issue
Leon Boguslawski
HEAT TRANSFER IN ANNULAR DUCTS WITH FREELY DECAYING SWIRL FLOW
International Heat Transfer Conference 9, Vol.5, 1990, issue
B.L. Button, K. Jambunathan , R.J. Edwards
FLUID FLOW AND HEAT TRANSFER CHARACTERISTICS OF A SWIRL JET IMPINGING ON A FLAT PLATE
International Heat Transfer Conference 13, Vol.0, 2006, issue
Juliana Kuhlmann Abrantes, Luis Fernando A. Azevedo
IMPINGING JET: EXPERIMENTAL ANALYSIS OF FLOW FIELD AND HEAT TRANSFER FOR ASSESSMENT OF TURBULENCE MODELS
International Heat Transfer Conference 13, Vol.0, 2006, issue
Andre Giovannini, N. S. Kim