Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Moiré-Fourier deflectometry for local heat transfer measurement over a backward-facing step
Year:2014
Research Areas
  • Mechanical aeronautics and naval engineering
Information
Abstract
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.
International
Si
JCR
Si
Title
International Journal of Thermal Sciences
ISBN
1290-0729
Impact factor JCR
2,563
Impact info
Volume
77
http://dx.doi.org/10.1016/j.ijthermalsci.2013.11.0
Journal number
From page
244
To page
251
Month
MARZO
Ranking
Participants
  • Autor: Gregorio Lopez Juste (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Mecánica de Fluidos y Propulsión Aeroespacial
S2i 2020 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)