Library Subscription: Guest
ICHMT DL Home Current Year Archives Executive Committee International Centre for Heat and Mass Transfer


DOI: 10.1615/ICHMT.2008.CHT.300
20 pages

Guilherme Araujo Lima Da Silva
Escola Politecnica da Universidade de São Paulo, São Paulo, Brazil

Otavio de Mattos Silvares
Escola Politecnica da Universidade de São Paulo, São Paulo; Instituto Mauá de Tecnologia, São Caetano, Brazil

Euryale Jorge Godoy de Jesus Zerbini
Escola Politecnica da Universidade de São Paulo, São Paulo, Brazil


The heated airfoil operating under icing conditions has some important characteristics that differentiates the problem from the case of adiabatic airfoil subjected to ice growth. In presence of thermal ice protection, the hypothesis of flow over isothermal surfaces, which is assumed by most classic icing codes, may not represent the operation satisfactorily. The present paper implemented successfully two modeling strategies that considers streamwise surface temperature variations in thermal boundary-layer evaluation by integral procedure: 1) solution of the approximated enthalpy thickness integral equation assuming flow over a non-isothermal surface; 2) application of superposition principle to thermal boundary-layer solutions to represent the effects of flow over a surface with non-uniform temperature distribution. The numerical results were compared with isothermal model results as well as the experimental results of flat plate in a wind tunnel and two NACA aifoils, the 0012 and the 652-0016, operating in icing tunnel under clear air and icing conditions. The streamwise surface temperature gradient, water evaporation rate variation and the presence of laminar-turbulent transition, when occurring within the protected area, are effects that are represented adequately by the mathematical models.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH