Large-Eddy simulation of non-homogeneous turbulence subjected to sudden distortion
Afsar, Mohammed and Kokkinakis, Ioannis and Stirrat, Sarah (2020) Large-Eddy simulation of non-homogeneous turbulence subjected to sudden distortion. In: Seventeenth International Conference on Flow Dynamics, 2020-10-28 - 2020-10-30, Virtual Conference and Tohoku University.
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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.
ORCID iDs
Afsar, Mohammed ORCID: https://orcid.org/0000-0002-7417-2089, Kokkinakis, Ioannis ORCID: https://orcid.org/0000-0001-9694-3764 and Stirrat, Sarah;-
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Item type: Conference or Workshop Item(Paper) ID code: 77456 Dates: DateEvent28 October 2020Published1 September 2020AcceptedSubjects: Technology > Motor vehicles. Aeronautics. Astronautics Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Strategic Research Themes > Ocean, Air and SpaceDepositing user: Pure Administrator Date deposited: 18 Aug 2021 10:25 Last modified: 22 Sep 2024 00:33 URI: https://strathprints.strath.ac.uk/id/eprint/77456