Direct Aeroacoustic Simulation with Volume Penalization Method
Abstract
Flow and acoustic fields around a circular cylinder and a cascade of flat plates are clarified by direct simulations with a volume penalization method, which is a useful method to predict flow and acoustic fields around a complex geometry in a flow. The predicted results are compared with our experimental results or those of literatures. It is also clarified that the acoustic resonance occurs between the plates for a cascade of flat plates. The phase-averaged predicted flow fields present that the vortices shed from neighboring plates is synchronized in an anti-phase mode. As a result, the intense standing waves are generated between plates.
Keywords
Aerodynamic noise, Direct aeroacoustic simulation, Volume penalization method, Cascade of flat plates, Circular cylinder
Publication Date
DOI
10.12783/dtcse/cmsam2016/3568
10.12783/dtcse/cmsam2016/3568
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