Schedule
MINDS SEMINAR
MINDS Seminar Series | Jooyoung Hahn (Slovak University of Technology) - Advanced Finite Volume Method for G-equation in Turbulent Combustion
MINDS SEMINAR
period : 2024-11-04 ~ 2024-11-04
time : 16:00:00 ~ 17:00:00
개최 장소 : Math Bldg 208 & Online streaming (Zoom)
Topic : Advanced Finite Volume Method for G-equation in Turbulent Combustion
개요
| Date | 2024-11-04 ~ 2024-11-04 | Time | 16:00:00 ~ 17:00:00 |
| Speaker | Jooyoung Hahn | Affiliation | Slovak University of Technology |
| Place | Math Bldg 208 & Online streaming (Zoom) | Streaming link | ID : 688 896 1076 / PW : 54321 |
| Topic | Advanced Finite Volume Method for G-equation in Turbulent Combustion | ||
| Contents | In this talk, we introduce a cell-centered finite volume method specifically designed to address the challenges of numerically solving the G-equation in premixed turbulent combustion scenarios. The G-equation, that is, level set equation, incorporates advective, normal, and curvature terms to model the f lame front propagation. The proposed algorithm, distinctively developed for polyhedral meshes, demonstrates significant advancements over traditional level set solvers. Key highlights of the approach from a numerical perspective include: 1. Enhanced Convergence: The method achieves second order convergence on polyhedral meshes when the temporal and spatial step sizes are reduced proportionally, showcasing improved accuracy in capturing com plex surface evolution. 2. Simplified Parallel Computing: Utilizing a domain decomposition strategy with a 1-ring face neighborhood structure, our method integrates seamlessly with existing cell-centered finite volume frameworks, facilitating straightforward parallel implementation. 3. Relaxed Time Step Constraints: By incorporating a semi-implicit scheme, our method mitigates the stringent time step limitations imposed by the CFL condition, enhancing computational efficiency. Throughout the presentation, we discuss thoroughly various numerical examples that validate the performance and numerical properties of the proposed algorithm, with a particular focus on handling each velocity term in the G-equation. The presentation will highlight the technical innovations and practical implications of our method in the context of general surface evolution. (It has received funding from the European Union ́s Horizon 2020 Research and Innovation Programme under the Programme SASPRO 2 COFUND Marie Sklodowska-Curie grant agreement No. 945478.) | ||
MinDS
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2024-10-02 08:44 ·
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