| Issue |
E3S Web Conf.
Volume 578, 2024
XL Siberian Thermophysical Seminar (STS-40)
|
|
|---|---|---|
| Article Number | 01027 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/e3sconf/202457801027 | |
| Published online | 14 October 2024 | |
Active control study in a flow in a model combustion chamber with LES
1 Institute of Thermophysics SB RAS, 630090 Novosibirsk, Russia
2 Novosibirsk State University, 630090 Novosibirsk, Russia
* Corresponding author: palkinev89@gmail.com
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 × 106 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).
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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