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

Investigation of flow pulsation phenomena in a sub-channel geometry using Detached Eddy Simulation approach

DOI: 10.1615/ICHMT.2009.TurbulHeatMassTransf.250
page 13

D. Home
Department of Mechanical Engineering, Thermal Processing Laboratory, McMaster University, Hamilton, Ontario L8S4L7, Canada

Marilyn F. Lightstone
Department of Mechanical Engineering, McMaster University, Hamilton, Ontario L8S4L7, Canada

Mohamed S. Hamed
Thermal Processing Laboratory (TPL), Department of Mechanical Engineering, McMaster University, Canada

Abstract

This abstract provides a summary of work-in-progress on using the Detached Eddy Simulation (DES) based turbulence modeling approach to investigate the flow pulsation phenomena in a twin rectangular sub-channel geometry. The objectives of the present research work are: (i) numerical identification of the flow pulsation phenomena by resolving the effects of large-scale pulsating flow, (ii) understanding the dynamics of the flow pulsation phenomena and formulating a detailed description of the flow field, (iii) numerical identification of the turbulent structures present in the flow field and (iv) identifying the physical mechanism(s) responsible for the cause of the flow pulsations. The effect of channel length was studied for the base line case. It was found, that the model could correctly predict high levels of turbulence intensity in the near-gap region. Alternate patterns of high velocities being directed on either side of the gap was observed, which leads to efficient cross-flow mixing.

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