Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Moiré-Fourier deflectometry for local heat transfer measurement over a backward-facing step
Año:2014
Áreas de investigación
  • Ingeniería mecánica, aeronaútica y naval
Datos
Descripción
This paper explores the possibility of using the Moire-Fourier deflectometry for measuring the local heat transfer coefficient inside small confined flows (micro-channels) and their relevance for checking theoretical models. This optical technique, supplemented with a digital image processing method of fringes, is applied for studying the local heat transfer over a backward facing step. The experimental results are compared with numerical results obtained from a commercial code, which has been contrasted with relevant solutions from the literature and bulk fluid temperature measurements at the inlet and outlet sections. In order to show the possibilities of the experimental technique, the influence of assuming an adiabatic wall on the numerical heat-transfer model is examined and the degree of agreement is discussed. As a result, the paper shows that the proposed Moiré-Fourier technique is a simple experimental setup suitable for temperature measurements with an accuracy similar to the thermocouples but with a spatial resolution near 0.01 mm.
Internacional
Si
JCR del ISI
Si
Título de la revista
International Journal of Thermal Sciences
ISSN
1290-0729
Factor de impacto JCR
2,563
Información de impacto
Volumen
77
DOI
http://dx.doi.org/10.1016/j.ijthermalsci.2013.11.0
Número de revista
Desde la página
244
Hasta la página
251
Mes
MARZO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Gregorio Lopez Juste (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Mecánica de Fluidos y Propulsión Aeroespacial
S2i 2017 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)