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

Low Reynolds number effects on jets issuing from round and elliptic orifices

DOI: 10.1615/ICHMT.2015.THMT-15.340
pages 215-218

S.S. Aleyasin
1Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB, Canada, R3T 5V6

Mark F. Tachie
Department of Mechanical and Manufacturing Engineering, University of Manitoba, Winnipeg MB, R3T 5V6 Canada

M. Koupriyanov
Price Industries Limited, 638 Raleigh St., Winnipeg, MB, Canada R2K 3Z9

T. Epp
Price Industries Limited, 638 Raleigh St., Winnipeg, MB, Canada R2K 3Z9


An experimental study was undertaken to investigate Reynolds number effects on mixing characteristics and turbulent transport phenomena in the near and intermediate regions of free orifice jets. The cross-sections examined were round, ellipses with aspect ratio 2 and 3. For each orifice cross-section, detailed velocity measurements were made at 4 Reynolds numbers: 2500, 4300, 8500 and 17000 using a particle image velocimetry. The results show different characteristics in the major and minor planes of ellipses with aspect ratio 2 and 3 including spread rate. Also an increase in Reynolds number leads to a narrower jet. Furthermore, the streamwise locations of axis-switching points of both elliptic nozzles are almost independent of Reynolds number not only for half-velocity width but also for the other velocity widths.

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