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Large eddy simulation of the Delft Adelaide Flame III using a quadrature-based method of moments

Ferraro, Federica ; Gierth, Sandro ; Salenbauch, Steffen ; Han, Wang ; Hasse, Christian (2022):
Large eddy simulation of the Delft Adelaide Flame III using a quadrature-based method of moments. (Postprint)
Darmstadt, European Combustion Meeting 2021, Naples, Italy and virtual, 14.-15.04.2021, DOI: 10.26083/tuprints-00022572,
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Item Type: Conference or Workshop Item
Origin: Secondary publication
Status: Postprint
Title: Large eddy simulation of the Delft Adelaide Flame III using a quadrature-based method of moments
Language: English
Abstract:

In this work, the recently developed split-based Extended Quadrate Method of Moments (S-EQMOM) is combined with a LES/presumed PDF-based flamelet/progress variable approach to achieve the predictions of soot particle size distributions in a turbulent non-premixed jet flame. The advantage of the S-EQMOM is that a continuous soot particle number density function (NDF) is able to be reconstructed by superimposing kernel density functions (KDFs) of presumed shape (gamma or log-normal distribution) that interact through the particle coagulation. Moreover, the S-EQMOM primary nodes are determined individually for each KDF yielding improvement in the numerical robustness compared to classical EQMOM. The above numerical framework is employed to predict soot particle formation in the Delft Adelaide flame III, which is a benchmark flame of the International Sooting Flame (ISF) workshop. The target flame is featured by low/high sooting propensity/intermittency and by relatively comprehensive flow/scalar/soot data available for validating the model framework. Simulation results are compared with the experimental results and discussed for both the gas phase and the particulate phase. A satisfactory quantitative agreement has been obtained especially in terms of soot volume fraction. The ability of the S-EQMOM to provide information on particle size distribution indicates a dominant unimodal distribution along the flame centerline.

Place of Publication: Darmstadt
Uncontrolled Keywords: Soot formation, Split-based Extended Quadrature Method of Moments, Large Eddy Simulation, Delft Adelaide Flame III
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 16 Department of Mechanical Engineering > Simulation of reactive Thermo-Fluid Systems (STFS)
TU-Projects: EC/H2020|821418|ESTiMatE
Event Title: European Combustion Meeting 2021
Event Location: Naples, Italy and virtual
Event Dates: 14.-15.04.2021
Date Deposited: 31 Oct 2022 13:34
Last Modified: 31 Oct 2022 13:34
DOI: 10.26083/tuprints-00022572
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-225721
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/22572
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