Abstract
In this paper we investigate the distortion of an unsteady flow through a two-dimensional sudden area expansion using LargeEddy Simulations. We perform a series of numerical experiments at various Mach numbers (Mb = (0.1, 0.5)) based on the inlet volume flow rate and fixed O(1) contraction ratio. At Mb = 0.1, we find that the transverse components of the auto-correlation of the two-point time-delayed velocity correlation tensor de-correlates slower in the downstream expansion compared to the channel section. We discuss this result in the context of classical and rapid-distortion theory.
Original language | English |
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Number of pages | 2 |
Publication status | Published - 28 Oct 2020 |
Event | Seventeenth International Conference on Flow Dynamics - Virtual Conference and Tohoku University, Sendai, Japan Duration: 28 Oct 2020 → 30 Oct 2020 http://www.ifs.tohoku.ac.jp/icfd2020/ |
Conference
Conference | Seventeenth International Conference on Flow Dynamics |
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Abbreviated title | ICFD17 2020 |
Country/Territory | Japan |
City | Sendai |
Period | 28/10/20 → 30/10/20 |
Internet address |
Keywords
- aeroacoustics
- trailing edge noise
- rapid-distortion theory
- optimization