Premixed Turbulent Combustion Flowfield Measurements Using PIV and LST and Their Application to Flamelet Modelling of Engine Combustion

Paper #:
  • 922322

Published:
  • 1992-10-01
Citation:
Armstrong, N. and Bray, K., "Premixed Turbulent Combustion Flowfield Measurements Using PIV and LST and Their Application to Flamelet Modelling of Engine Combustion," SAE Technical Paper 922322, 1992, https://doi.org/10.4271/922322.
Pages:
14
Abstract:
Flamelet modelling of premixed turbulent combustion can be applied to spark-ignition engine combustion. To address and validate several modelling criteria, two measurement techniques are used in a burner flame to study the interaction between turbulent flowfields and combustion for subsequent application to engine combustion. Particle Image Velocimetry and Light Sheet Tomography are used together to measure conditional velocities simultaneously in reactant and product mixtures. Correlations of velocity and reaction scalar fluctuations indicate that counter-gradient turbulent diffusion must be accounted for when modelling this flowfield. Comparisons of spatial averaging of instantaneous and ensemble-averaged data are made and the application of similar techniques to engine combustion is discussed.
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