Abo Bibliothek: Guest
ICHMT DL Home Aktuelles Jahr Archive Vorstand International Centre for Heat and Mass Transfer

Recent developments in turbulent combustion modeling: automated progress variables definition − Ignition combustion regimes after rapid compression

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.40
pages 37-48

Luc Vervisch
CORIA - CNRS & INSA Rouen, BP 8, 76801 Saint-Etienne-du-Rouvray, France

Y.-S. Niu
CORIA - CNRS & INSA Rouen, BP 8, 76801 Saint-Etienne-du-Rouvray, France

Guillaume Lodier
CORIA - CNRS & INSA Rouen, BP 8, 76801 Saint-Etienne-du-Rouvray, France

Pascale Domingo
CORIA - CNRS & INSA Rouen, BP 8, 76801 Saint-Etienne-du-Rouvray, France


Two recent findings in relation with turbulent combustion modeling are discussed. The first concerns the projection, in a space of low-dimension, of the numerous degrees of freedom pertaining to the description of chemistry of hydrocarbon flames. From an analysis of chemical trajectories observed in canonical flame problems, a set of inequalities is derived and solved to determine the optimal composition-space projection. The second point deals with ignition after rapid compression, the major ignition regimes usually observed (quasi-homogeneous or fragmented) are revisited from Direct Numerical Simulation of a rapid compression machine. The outcome is an ignition diagram to delineate between regimes, this diagram is based on mixing characteristic times and the chemical ignition delay.

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