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  1. Journal of the Brazilian Society of Mechanical Sciences and Engineering
  2. Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38
  3. Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38, Issue 8, December 2016
  4. Computational assessment of methane-air reduced chemical kinetic mechanisms for soot production studies
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Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 40
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 39
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38, Issue 8, December 2016
Free vibration analysis of FGM nanoplate with porosities resting on Winkler Pasternak elastic foundations based on two-variable refined plate theories
Estimation of muscular forces from SSA smoothed sEMG signals calibrated by inverse dynamics-based physiological static optimization
Computational assessment of methane-air reduced chemical kinetic mechanisms for soot production studies
Effects of equal spark timing on performance emission and combustion characteristics of SI engine using hydrogen and CNG blends
Application of fuzzy C-means method and classification model of optimized K-nearest neighbor for fault diagnosis of bearing
New method for railway track quality identification through the safety dynamic performance of instrumented railway vehicle
An analytical procedure for transient response determination of annular FSDT and CPT nanoplates via nonlocal elasticity theory
CFD analysis of solar air collector equipped with flexible ribs
Throughflow and quadratic drag effects on the onset of convection in a Forchheimer-extended Darcy porous medium layer saturated by a nanofluid
Analysis of the operating pressure and GDL geometrical configuration effect on PEM fuel cell performance
Application of Galerkin and Collocation method to the electrohydrodynamic flow analysis in a circular cylindrical conduit
Homotopy simulation of micro-scale flow between rotating disks
Flow separation control over airfoils using DBD plasma body force
Steady flow of Burgers’ nanofluid over a stretching surface with heat generation/absorption
Effects of trailing edge bluntness on airfoil tonal noise at low Reynolds numbers
Ion slip effect on unsteady Couette flow of a dusty fluid in the presence of uniform suction and injection with heat transfer
Computational study of the air flow dynamics in an induced draft cooling tower
Comparison of accuracy stability using a thermal compensator and grating ruler
Analysis of the hard turning of AISI H13 steel with ceramic tools based on tool geometry: surface roughness, tool wear and their relation
Experimental study on accuracy and surface quality of TC2 in LS-WEDM multiple cuts
Cutting temperature analysis considering the improved Oxley’s predictive machining theory
Residual stress relief of welded joints by mechanical vibrations
A non-ideally excited pendulum controlled by SDRE technique
Production strategy optimization based on iterative discrete Latin hypercube
Safety issues associated with the use and operation of natural gas vehicles: learning from accidents in Pakistan
Potential application of Six Sigma tool in the integrated product development process
Comparing DEA and principal component analysis in the multiobjective optimization of P-GMAW process
Experimental investigation of the effect of double cold expansion on the residual stresses distribution and on the fatigue life of rivet hole
Soret and Dufour effects on hydromagnetic flow of viscoelastic fluid over porous oscillatory stretching sheet with thermal radiation
Non-stationary electro-thermo-mechanical creep response and smart deformation control of thick-walled sphere made of polyvinylidene fluoride
Stress intensity factor of semi-elliptical surface crack in a thermo-mechanically loaded cylinder with hoop wrapped FGM layer
Bending and buckling analysis of corrugated composite sandwich plates
Buckling analysis of double-orthotropic nanoplates embedded in elastic media based on non-local two-variable refined plate theory using the GDQ method
Free vibration analysis of sigmoid functionally graded nanobeams based on a modified couple stress theory with general shear deformation theory
Pneutronic speed governor for small hydropower plants: a new application for pneumatics
Thermo-mechanical analysis of a cylindrical tube under internal shock loading using numerical solution
Slot jet impingement heat transfer for the cases of moving plate and moving nozzle
Vibrational problems of timber beams with knots considering uncertainties
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38, Issue 7, October 2016
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38, Issue 5, June 2016
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38, Issue 4, April 2016
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38, Issue 3, March 2016
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38, Issue 2, February 2016
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 38, Issue 1, January 2016
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 37
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 36
Journal of the Brazilian Society of Mechanical Sciences and Engineering : Volume 35

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Computational assessment of methane-air reduced chemical kinetic mechanisms for soot production studies

Content Provider SpringerLink
Author Celis, Cesar Figueira da Silva, Luís Fernando
Copyright Year 2016
Abstract Accurate predictions of minor chemical species and radicals are crucial for determining the production of pollutants such as soot. Reduced chemical kinetic mechanisms compromise their accuracy in favor of a lower computational cost. When using these reduced mechanisms then, it is important to assess both the accuracy of the results obtained, and the amount of computational time saved. This work describes such an assessment of seven methane-air reduced chemical kinetic mechanisms to be used for carrying out soot formation studies. The reduced mechanisms evaluated involve different numbers of chemical species and reaction steps. The assessment is carried out using partially stirred reactors, with and without in situ adaptive tabulation-based chemistry acceleration techniques, by comparing the results with detailed chemical kinetics baseline computations. In terms of accuracy, for equivalence ratios featuring significant amounts of soot (above ~1.5), and considering only those mechanisms that are readily used with the soot model utilized, the reduced mechanisms results show that major species are in general predicted reasonably well (~0–10 % discrepancies). Larger discrepancies between detailed and reduced mechanisms results (~0.2–16 %) are observed, however, when predicting minor species. The in situ adaptive tabulation technique used in this work leads to further reductions in the accuracy of the minor species predicted, i.e., to further increases in discrepancies (~0.1–7 %). Regarding the computational cost, the results show that savings of up to 57 % can be obtained when using the reduced mechanisms analyzed. The use of chemistry acceleration techniques results in further cost reductions ranging from 1 to 43 %. Additionally, discrepancies in the predictions of soot volume fraction of the order of 4–11 % are observed when using reduced mechanisms. The results obtained in this work emphasize overall the need of carefully selecting the reduced mechanism that is more suitable for a given application.
Starting Page 2225
Ending Page 2244
Page Count 20
File Format PDF
ISSN 16785878
Journal Journal of the Brazilian Society of Mechanical Sciences and Engineering
Volume Number 38
Issue Number 8
e-ISSN 18063691
Language English
Publisher Springer Berlin Heidelberg
Publisher Date 2016-02-16
Publisher Place Berlin, Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Partially stirred reactors Reduced chemical kinetic mechanisms Methane-air combustion Mechanical Engineering
Content Type Text
Resource Type Article
Subject Applied Mathematics Industrial and Manufacturing Engineering Automotive Engineering Mechanical Engineering Aerospace Engineering
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