Active control study in a flow in a model combustion chamber with LES

We conducted the mesh convergence study for an isothermal incompressible air flow in a model combustion chamber with Turbomeca swirler of D = 37 mm using Large-eddy simulations (LES). Simulation were conducted using 4 different meshes ranging from 4 to 24 × 10 6 cells at the Reynolds number Re = 15...

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Bibliographic Details
Published in:E3S web of conferences 2024, Vol.578, p.1027
Main Authors: Palkin, Egor, Kundashkin, Alexander, Hrebtov, Mikhail, Mullyadzhanov, Rustam
Format: Article
Language:English
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Summary:We conducted the mesh convergence study for an isothermal incompressible air flow in a model combustion chamber with Turbomeca swirler of D = 37 mm using Large-eddy simulations (LES). Simulation were conducted using 4 different meshes ranging from 4 to 24 × 10 6 cells at the Reynolds number Re = 15 632 with additional air injection of 4.4 % of the main volumetric flow rate from an circular slot. The results revealed that high spanwise slot resolution in the vicinity of the slot is crucial, particularly, for achieving convergence of radial velocity pulsations. Additionally, we analyzed the pressure signal and its spectral characteristics to demonstrate the effectiveness of the circular slot injection in reducing pressure pulsations associated with the precessing vortex core (PVC).
ISSN:2267-1242
2267-1242
DOI:10.1051/e3sconf/202457801027