Abonnement à la biblothèque: Guest
Page d'accueil ICHMT DL Année en cours Archives Comité de direction Centre international pour le transfert de chaleur et de masse

Unsteady heat transfer of multiple impinging jets

DOI: 10.1615/ICHMT.2015.THMT-15.610
pages 323-326

M. Draksler
Reactor Engineering Division, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia

Bostjan Koncar
Josef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia

L. Cizelj
Reactor Engineering Division, Jozef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia

Bojan Niceno
Laboratory for Thermal Hydraulics, Department of Nuclear Energy and Safety, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland


This paper discusses the instantaneous heat transfer characteristics of multiple impinging jets where the interconnection between the instantaneous flow features near the target wall and the local heat transfer enhancement is investigated in particular. Based on the large eddy simulation results of the selected experimental case with 13 impinging jets at Reynolds number around 20000, two key mechanisms that contribute to unsteady heat transfer augmentations were identified.

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