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Giovanni Lo Iacono
Rothamsted Research

Paul G. Tucker
Fluid Dynamics Research Centre, School of Engineering, The University of Warwick, Coventry; Whittle laboratory, University of Cambridge, UK


Large Eddy Simulation (LES) is used to study dilute flow particle deposition in a ribbed channel. For the particles, a Lagrangian approach is adopted. The extension of this from spherical to cylindrical particles is shown. For validation purposes simulations of particle motion in homogeneous, isotropic turbulence, a mixing layer and channel flow are conducted. In this way much of the main flow physics components present in a ribbed duct are separately covered. Ribbed channel calculations are performed for different mass and shaped particles, and gravity directions. Results show that spherical particles tend to accumulate on the vertical rib wall facing the flow direction. The region downstream the rib tends to be particle free. In addition, it is found that lighter particles tend to be trapped in recirculations adjacent to the vertical rib surfaces. Heavier particles tend to deposit or to escape towards the central region of the duct. Cylindrical particles avoid the corner recirculations. Instead, they deposit or move towards the inter-rib central channel region.

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