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Title: Multiple mapping conditioning of velocity in turbulent jet flames

Abstract

Multiple mapping conditioning (MMC) has emerged as a new approach to model turbulent reacting flows. This study revises the standard MMC closure for velocity in turbulent jet flows from linearity in the reference space to linearity in the composition space. This modeling amendment ensures that the standard velocity model in conditional moment closure studies can now be used for MMC computation as well. A simplified model for the velocity-dependence of MMC drift coefficients is derived without loss of generality and is implemented for the revised velocity closure. Modeling results have been corroborated against the Direct Numerical Simulation database of a spatially evolving, planar turbulent jet flame. The revised model shows marked improvement over standard MMC closure in predicting velocity statistics close to the nozzle. (author)

Authors:
 [1];  [2]
  1. Mechanical Engineering Department, Imperial College, London SW7 2AZ (United Kingdom)
  2. Institut fuer Technische Verbrennung, Universitaet Stuttgart, 70174 Stuttgart (Germany)
Publication Date:
OSTI Identifier:
21350365
Resource Type:
Journal Article
Journal Name:
Combustion and Flame
Additional Journal Information:
Journal Volume: 157; Journal Issue: 10; Other Information: Elsevier Ltd. All rights reserved; Journal ID: ISSN 0010-2180
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COMPUTERIZED SIMULATION; VELOCITY; JETS; FLAMES; MAPPING; EVALUATION; CALCULATION METHODS; TURBULENCE; Jet flames; Mapping closure; Velocity modelling

Citation Formats

Vaishnavi, P., and Kronenburg, A. Multiple mapping conditioning of velocity in turbulent jet flames. United States: N. p., 2010. Web. doi:10.1016/J.COMBUSTFLAME.2010.06.007.
Vaishnavi, P., & Kronenburg, A. Multiple mapping conditioning of velocity in turbulent jet flames. United States. doi:10.1016/J.COMBUSTFLAME.2010.06.007.
Vaishnavi, P., and Kronenburg, A. Fri . "Multiple mapping conditioning of velocity in turbulent jet flames". United States. doi:10.1016/J.COMBUSTFLAME.2010.06.007.
@article{osti_21350365,
title = {Multiple mapping conditioning of velocity in turbulent jet flames},
author = {Vaishnavi, P. and Kronenburg, A.},
abstractNote = {Multiple mapping conditioning (MMC) has emerged as a new approach to model turbulent reacting flows. This study revises the standard MMC closure for velocity in turbulent jet flows from linearity in the reference space to linearity in the composition space. This modeling amendment ensures that the standard velocity model in conditional moment closure studies can now be used for MMC computation as well. A simplified model for the velocity-dependence of MMC drift coefficients is derived without loss of generality and is implemented for the revised velocity closure. Modeling results have been corroborated against the Direct Numerical Simulation database of a spatially evolving, planar turbulent jet flame. The revised model shows marked improvement over standard MMC closure in predicting velocity statistics close to the nozzle. (author)},
doi = {10.1016/J.COMBUSTFLAME.2010.06.007},
journal = {Combustion and Flame},
issn = {0010-2180},
number = 10,
volume = 157,
place = {United States},
year = {2010},
month = {10}
}