What is it about?
Study of transverse pressure oscillations in high pressure combustor is a key aspect of complex reacting systems design. The present study sets the first attempt to investigate the role of a transverse forcing in a multi-injectors combustor using a characteristics-based model.
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Why is it important?
A new approach recently developed is used to force the system. This approach is of particular interest because it allows also to specify admittance boundary conditions at a particular surface, leading to the interesting possibility to implement hybrid Large-Eddy simulations (LES) with Reduced-Order models (ROM) that can help to save computational time for complex cases.
Perspectives
This article represents the baseline for more complex simulations that will be conducted soon. One important improvement for this application will be the real-gas thermodynamics, that accounts for very-high pressure systems. The extension of this approach to supercritical fluids, along with the modeling of acoustic cavities using admittance boundary conditions will be an important contribution in the simulations of complex systems using hybrid LES-ROM approach.
Principio Tudisco
Georgia Institute of Technology
Read the Original
This page is a summary of: Numerical Investigation of Transverse Forcing in a Multi-Element, Shear-Coaxial, High Pressure Combustor, January 2016, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2016-2155.
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