2013/06/20 by Alessandro Coclite, Coclite, Alessandro, G. Pascazio +7
Chemical Engineering · Engineering · Physics and Astronomy · #Advanced Combustion Engine Technologies #Combustion and flame dynamics #FOS: Physical sciences #Fire dynamics and safety research #Fluid Dynamics (physics.flu-dyn) #Radiative Heat Transfer Studies #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.1306.4863
AIMETA 2013 conference
arxiv created 2013/06/20 · openalex publication_date 2013/06/20 · arxiv updated 2013/06/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper provides an extension of the standard flamelet progress variable (FPV) approach for turbulent combustion, applying the statistically most likely distribution (SMLD) framework to the joint PDF of the mixture fraction, Z, and the progress variable, C. In this way one does not need to make any assumption about the statistical correlation between Z and C and about the behaviour of the mixture fraction, as required in previous FPV models. In fact, for state-of-the-art models, with the assumption of very-fast-chemistry,Z is widely accepted to behave as a passive scalar characterized by a β-distribution function. Instead, the model proposed here, evaluates the most probable joint distribution of Z and C without any assumption on their behaviour and provides an effective tool to verify the adequateness of widely used hypotheses, such as their statistical independence. The model is validated versus three well-known test cases, namely, the Sandia flames. The results are compared with those obtained by the standard FPV approach, analysing the role of the PDF functional form on turbulent combustion simulations.