Koob, Philipp ; Ferraro, Federica ; Nicolai, Hendrik ; Eggels, Ruud ; Staufer, Max ; Hasse, Christian (2023)
Large eddy simulation of soot formation in a real aero-engine combustor using tabulated chemistry and a quadrature-based method of moments.
In: Journal of Engineering for Gas Turbines and Power, 146 (1)
doi: 10.1115/1.4063376
Article, Bibliographie
This is the latest version of this item.
Abstract
Considering the increasingly stringent targets for aircraft emissions, computational fluid dynamics (CFD) is becoming a viable tool for improving future aero-engine combustors. However, predicting pollutant formation remains challenging. In particular, directly solving the evolution of soot particles is numerically expensive. To reduce the computational cost but retain detailed physical modeling, quadrature-based moments methods can be efficiently employed to approximate the particle number density function (NDF). An example is the recently developed split-based extended quadrature method of moments (S-EQMOM), which enables a continuous description of the soot particles' NDF, essential to consider particle oxidation accurately. This model has shown promising results in laminar premixed flames up to turbulent laboratory scale configurations. However, the application to large-scale applications are still scarce. In this work, the S-EQMOM model is applied to the Rolls-Royce BR710 aero-engine combustor to investigate the soot evolution process in practically relevant configurations. For this, the soot model is embedded into a high-fidelity simulation framework, consisting of large eddy simulation for the turbulent flow and mixing and the flamelet-generated manifold method for chemistry reduction. An additional transport equation for polycyclic aromatic hydrocarbons is solved to model their slow chemistry and the transition from the gaseous phase to the solid phase. Simulations are performed for different operating conditions (idle, approach, climb, takeoff) to validate the model using experimental data. Subsequently, the results are analyzed to provide insights into the complex interactions of hydrodynamics, mixing, chemistry, and soot formation.
| Item Type: | Article |
|---|---|
| Erschienen: | 2023 |
| Creators: | Koob, Philipp ; Ferraro, Federica ; Nicolai, Hendrik ; Eggels, Ruud ; Staufer, Max ; Hasse, Christian |
| Type of entry: | Bibliographie |
| Title: | Large eddy simulation of soot formation in a real aero-engine combustor using tabulated chemistry and a quadrature-based method of moments |
| Language: | English |
| Date: | November 2023 |
| Place of Publication: | New York, NY |
| Publisher: | ASME |
| Journal or Publication Title: | Journal of Engineering for Gas Turbines and Power |
| Volume of the journal: | 146 |
| Issue Number: | 1 |
| Collation: | 8 Seiten |
| DOI: | 10.1115/1.4063376 |
| Corresponding Links: | |
| Abstract: | Considering the increasingly stringent targets for aircraft emissions, computational fluid dynamics (CFD) is becoming a viable tool for improving future aero-engine combustors. However, predicting pollutant formation remains challenging. In particular, directly solving the evolution of soot particles is numerically expensive. To reduce the computational cost but retain detailed physical modeling, quadrature-based moments methods can be efficiently employed to approximate the particle number density function (NDF). An example is the recently developed split-based extended quadrature method of moments (S-EQMOM), which enables a continuous description of the soot particles' NDF, essential to consider particle oxidation accurately. This model has shown promising results in laminar premixed flames up to turbulent laboratory scale configurations. However, the application to large-scale applications are still scarce. In this work, the S-EQMOM model is applied to the Rolls-Royce BR710 aero-engine combustor to investigate the soot evolution process in practically relevant configurations. For this, the soot model is embedded into a high-fidelity simulation framework, consisting of large eddy simulation for the turbulent flow and mixing and the flamelet-generated manifold method for chemistry reduction. An additional transport equation for polycyclic aromatic hydrocarbons is solved to model their slow chemistry and the transition from the gaseous phase to the solid phase. Simulations are performed for different operating conditions (idle, approach, climb, takeoff) to validate the model using experimental data. Subsequently, the results are analyzed to provide insights into the complex interactions of hydrodynamics, mixing, chemistry, and soot formation. |
| Additional Information: | Artikel-ID: 011015 |
| Divisions: | 16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Rolls-Royce University Technology Center Combustor Turbine Interaction (UTC) 16 Department of Mechanical Engineering > Simulation of reactive Thermo-Fluid Systems (STFS) |
| TU-Projects: | EC/H2020|821418|ESTiMatE |
| Date Deposited: | 08 Dec 2023 12:38 |
| Last Modified: | 16 Jan 2024 06:59 |
| PPN: | 51392955X |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Available Versions of this Item
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Large Eddy Simulation of Soot Formation in a Real Aero-Engine Combustor Using Tabulated Chemistry and a Quadrature-Based Method of Moments. (deposited 15 Jan 2024 13:13)
- Large eddy simulation of soot formation in a real aero-engine combustor using tabulated chemistry and a quadrature-based method of moments. (deposited 08 Dec 2023 12:38) [Currently Displayed]
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