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


DOI: 10.1615/ICHMT.2008.CHT.1750
18 pages

Daniele Suzzi
The Virtual Vehicle Competence Center (ViF), Graz, Austria

Christian Rauch
Christian Rauch Research e.U.

Sebastian Jagsch
MAGNA STEYR Fahrzeugtechnik AG & Co. KG, Graz, Austria

Raimund A. Almbauer
Graz University of Technology, Institute for Internal Combustion Engines and Thermodynamics, Graz, Austria


The prediction of local surface temperatures is gaining a key role in the development of passengers and heavy duty vehicles. Computational methods could provide many advantages in the prototyping development and the geometry optimization phases. Nevertheless, physical and numerical reliable CFD solutions are strongly related to time costs, which represent a critical point in the product development cycle.
The aim of this paper is to analyze the interaction of different computational parameters on the prediction of heat transfer phenomena. In the environment of a commercial CFD code mesh resolution, wall functions, turbulence, and radiation models are being considered with respect to industrial requirements.
At first, the influence of boundary layer thickness and turbulence models is taken into account. The chosen test case is represented by an impinging jet on a flat surface. The simultaneous effects of free and wall jet, stagnation point, boundary layer, and transition represent a comprehensive environment for the testing of convective heat flux.
The combined effects of convection and radiation are then investigated. A low speed wind tunnel containing a heated tube representative of an exhaust is selected as benchmark. Experimental data on the test rig heat shield temperature are compared to simulation results according to a variation of computational parameters.

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