Self-sustained shock-wave oscillation mechanisms of transonic airfoil buffet

Yuma Fukushima, Soshi Kawai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)


In this study, a buffet flow field obtained from the high fidelity wall-modeled large eddy simulation [1] is investigated to understand the self-sustained shock-wave oscillation mechanisms. Dominant phenomena in the transonic buffet are identified by the frequency weighted power spectrum density distribution. The fluctuations are decomposed into high-and low-frequency flow components, corresponding to high-frequency acoustic-wave-generation related physics and low-frequency shock-oscillation related breathing motion by phase-averaged operations. From the analysis, the buffet phenomena are simplified as based on the low-frequency breathing motion.

Original languageEnglish
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
Publication statusPublished - 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: 2019 Jan 72019 Jan 11

Publication series

NameAIAA Scitech 2019 Forum


ConferenceAIAA Scitech Forum, 2019
Country/TerritoryUnited States
CitySan Diego


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