Low Mach Number Flames

Camille Jordan Institute - Claude

Description

Splitting Techniques for Low Mach Number Flames Context Background Numerical Difficulties Strategies Splitting Aim of splitting Standard analysis Stiffness Laminar Premixed Counter-Flow Flames simulations Modelisation Splitting : chemical correction Numerical results Conclusion Operator Splitting Techniques for Multi-Scale Reacting Waves And Application to Low Mach Number Flames with Complex Chemistry S. Descombes 2 T. Dumont 1, J. Beaulaurier 3 F. Laurent-Nègre 3 V. Louvet 1 M. Massot 3 1Camille Jordan Institute - Claude Bernard Lyon 1 University - France 2J. Dieudonné Laboratory, Nice-Sophia Antipolis University - France 3EM2C Laboratory - Ecole Centrale Paris - France 12th International Conference on Numerical Combustion

• counter-flow flames


• standard analysis


• context background


• ?? dynamics


• operator splitting


• numerical results


• space multi-scales

Sujets

• Laboratory
• Antipolis
• France 2
• Massot

Informations

• Publié par: profil-urra-2012
• Nombre de lectures: 33
• Langue: Deutsch

Extrait

OMpuletir-aStocralSeplRitetiancgtiTnegchWnaivqeusesAfnodr

ApplicationtoLowMachNumberFlames
withComplexChemistry

S.Descombes
2
T.Dumont
1
,J.Beaulaurier
3
F.Laurent-Nègre
3
V.Louvet
1
M.Massot
3

1
CamilleJordanInstitute-ClaudeBernardLyon1University-France
2
J.DieudonnéLaboratory,Nice-SophiaAntipolisUniversity-France
3
EM2CLaboratory-EcoleCentraleParis-France

12thInternationalConferenceonNumericalCombustion

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4

Conclusion

3

LaminarPremixedCounter-Flowflamessimulations
Premixedcounter-flowflamesmodel
Applicationofsplittingmethod:chemicalcorrection
NumericalResults

2

Operatorsplittingandstiffness
Aimofsplittingmethods
Standardnumericalanalysisofoperatorsplitting
Stiffnesscomesintoplay

ContextandMotivation
ApplicationBackground
Numericalandcomputationaldifficulties
NumericalStrategies

1

Outline

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Conclusion

3

LaminarPremixedCounter-Flowflamessimulations
Premixedcounter-flowflamesmodel
Applicationofsplittingmethod:chemicalcorrection
NumericalResults

2

Operatorsplittingandstiffness
Aimofsplittingmethods
Standardnumericalanalysisofoperatorsplitting
Stiffnesscomesintoplay

ContextandMotivation
ApplicationBackground
Numericalandcomputationaldifficulties
NumericalStrategies

1

Outline

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(spiralwaves,scrollwaves,...)
,
exampleinmedicine

fFlames

s→,complexchemistry
→,→,

eApplicationBackground:Numericalsimulation
ofunsteadyreactivephenomena

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oFlames

CChemical“waves”
(spiralwaves,scrollwaves,...)
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exampleinmedicine

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,
→
Solutionwith
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,
→
Timeandspace
multi-scales

tApplicationBackground:Numericalsimulation
ofunsteadyreactivephenomena

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Chemical“waves”
(spiralwaves,scrollwaves,...)
,
exampleinmedicine

Flames

→,complexchemistry
,
→
Solutionwith
highg
,
→
Timeandspace
multi-scales

ApplicationBackground:Numericalsimulation
ofunsteadyreactivephenomena

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noisulcnoCstluserlaciremuNnoitcerroclacimehc:gnittilpSnoitasiledoMsnoitalumissemalFwolF-retnuoCdeximerPranimaLssenffitSsisylanadradnatSgnittilpsfomiAgnittilpSseigetartSseitlucfifiDlaciremuNdnuorgkcaBtxetnoCsemalFrebmuNhcaMwoLrofseuqinhceTgnittilpSChemical“waves”
(spiralwaves,scrollwaves,...)
,
exampleinmedicine

Flames

→,complexchemistry
,
→
Solutionwith
highg
,
→
Timeandspace
multi-scales

ApplicationBackground:Numericalsimulation
ofunsteadyreactivephenomena

smelborpstneidar:snoitcaerdnaseicepsynamgnivlovniscimanyD)stnatullop,scimanyd,seitilibatsnI(
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→,spectrumandlargespatialgradientsonmulti-dimensional
configuration

iSpatialStiffness

tDifficulties
tobetreated:

tNumericalandcomputationaldifficulties

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NhcaMwoLrofseuqinhceTgnittilpSnoitarugfinoclanoisnemid-itlumnostneidarglaitapsegralSpatialStiffness

dDifficulties
tobetreated:

nNumericalandcomputationaldifficulties

aResolvingalargescalespectrum

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configuration

PagodaFlame(D.Durox,S.Ducruix,S.Candel)

Resolvingalargescalespectrum

SpatialStiffness

Difficulties
tobetreated:

Numericalandcomputationaldifficulties

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