Suscripción a Biblioteca: Guest
Página principal de la Biblioteca Digital de ICHMT Año actual Archivos Comité Ejecutivo Centro Internacional de Transferencia de Calor y Masa


DOI: 10.1615/ICHMT.2015.IntSympAdvComputHeatTransf.20
pages 12-23

Muhammad Ali Rob Sharif
Aerospace Engineering and Mechanics Department, The University of Alabama, Tuscaloosa, Alabama, USA


Detailed numerical investigation of round turbulent submerged swirling jet impingement heat transfer from a heated plane circular surface is conducted. The axisymmetric flow domain is bounded by the hot impingement surface and a concentric circular jet, impinging normally on to the surface. The flow and geometric parameters are the Reynolds number at the jet exit, the swirl number, and the separation distance from the jet exit to the target plate. The computations are performed using the ANSYS FLUENT commercial CFD code using the SST k-ω turbulence model. Various combinations of the flow and geometric parameters are considered and the resulting heat transfer process is critically analysed and the findings are presented. It is observed from the present analysis that swirl negatively affects the heat transfer for the range of jet to target distance and swirl number considered. For any particular separation distance, the local and average Nusselt number distribution shows a decreasing trend with increasing swirl number. The average Nusselt number decreases by 4 to 7% as the swirl number is increased to 0.77.

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