LES Study of Active Valve Resonant Pulse Combustor

Joel Lisanti, Xuren Zhu, Thibault Guiberti, William L. Roberts

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work describes the methodology and progress towards numerical simulation of an active valve resonant pulse combustor. The study is being conducted using a reacting, large eddy simulation with dynamic mesh capability to handle the valve motion. To date results have not reached full resonant operation but preliminary analysis suggest that the simulation is moving towards a resonant state. Pressure oscillations within the simulated combustor are shown to shift in phase towards resonance for each of the three most recently completed cycles. Phasing of reverse flow into the exit plane of the combustor is consistent with the wave structure of resonant operation and the location and phasing of heat release is also shifting towards the expectations for resonance. Future work will include validating the simulated operation with experimental results, calculation of the device Rayleigh efficiency, and analysis of the cycle to cycle flame re-ignition.
Original languageEnglish (US)
Title of host publicationAIAA Scitech 2021 Forum
PublisherAmerican Institute of Aeronautics and Astronautics
Pages1-10
Number of pages10
ISBN (Print)9781624106095
DOIs
StatePublished - Jan 4 2021

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