A Regime Diagram for Autoignition of Homogeneous Reactant Mixtures with Turbulent Velocity and Temperature Fluctuations

Handle URI:
http://hdl.handle.net/10754/350277
Title:
A Regime Diagram for Autoignition of Homogeneous Reactant Mixtures with Turbulent Velocity and Temperature Fluctuations
Authors:
Im, Hong G. ( 0000-0001-7080-1266 ) ; Pal, Pinaki; Wooldridge, Margaret S.; Mansfield, Andrew B.
Abstract:
A theoretical scaling analysis is conducted to propose a diagram to predict weak and strong ignition regimes for a compositionally homogeneous reactant mixture with turbulent velocity and temperature fluctuations. The diagram provides guidance on expected ignition behavior based on the thermo-chemical properties of the mixture and the flow/scalar field conditions. The analysis is an extension of the original Zeldovich’s analysis by combining the turbulent flow and scalar characteristics in terms of the characteristic Damköhler and Reynolds numbers of the system, thereby providing unified and comprehensive understanding of the physical and chemical mechanisms controlling ignition characteristics. Estimated parameters for existing experimental measurements in a rapid compression facility show that the regime diagram predicts the observed ignition characteristics with good fidelity.
KAUST Department:
Clean Combustion Research Center
Citation:
A Regime Diagram for Autoignition of Homogeneous Reactant Mixtures with Turbulent Velocity and Temperature Fluctuations 2015:150402072307000 Combustion Science and Technology
Journal:
Combustion Science and Technology
Issue Date:
2-Apr-2015
DOI:
10.1080/00102202.2015.1034355
Type:
Article
ISSN:
0010-2202; 1563-521X
Additional Links:
http://www.tandfonline.com/doi/full/10.1080/00102202.2015.1034355
Appears in Collections:
Articles; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorIm, Hong G.en
dc.contributor.authorPal, Pinakien
dc.contributor.authorWooldridge, Margaret S.en
dc.contributor.authorMansfield, Andrew B.en
dc.date.accessioned2015-04-08T12:32:48Zen
dc.date.available2015-04-08T12:32:48Zen
dc.date.issued2015-04-02en
dc.identifier.citationA Regime Diagram for Autoignition of Homogeneous Reactant Mixtures with Turbulent Velocity and Temperature Fluctuations 2015:150402072307000 Combustion Science and Technologyen
dc.identifier.issn0010-2202en
dc.identifier.issn1563-521Xen
dc.identifier.doi10.1080/00102202.2015.1034355en
dc.identifier.urihttp://hdl.handle.net/10754/350277en
dc.description.abstractA theoretical scaling analysis is conducted to propose a diagram to predict weak and strong ignition regimes for a compositionally homogeneous reactant mixture with turbulent velocity and temperature fluctuations. The diagram provides guidance on expected ignition behavior based on the thermo-chemical properties of the mixture and the flow/scalar field conditions. The analysis is an extension of the original Zeldovich’s analysis by combining the turbulent flow and scalar characteristics in terms of the characteristic Damköhler and Reynolds numbers of the system, thereby providing unified and comprehensive understanding of the physical and chemical mechanisms controlling ignition characteristics. Estimated parameters for existing experimental measurements in a rapid compression facility show that the regime diagram predicts the observed ignition characteristics with good fidelity.en
dc.relation.urlhttp://www.tandfonline.com/doi/full/10.1080/00102202.2015.1034355en
dc.rightsThis is an Accepted Manuscript of an article published by Taylor & Francis in Combustion Science and Technology on April 02, 2015, available online: http://wwww.tandfonline.com/10.1080/00102202.2015.1034355.en
dc.titleA Regime Diagram for Autoignition of Homogeneous Reactant Mixtures with Turbulent Velocity and Temperature Fluctuationsen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.identifier.journalCombustion Science and Technologyen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Mechanical Engineering, University of Michigan, 2350 Hayward Street, Ann Arbor, MI 48109-2125, USAen
dc.contributor.institutionDepartment of Aerospace Engineering, University of Michigan, 1320 Beal Avenue, Ann Arbor, MI 48109-2140, USAen
kaust.authorIm, Hong G.en
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