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Subgrid-scale (SGS) models for large-eddy simulation (LES) define the formalism of an effective eddy-viscosity model. The aim of this work is to quantify and compare different SGS models with experimental data. The first model investigated here is Smagorinsky model (SM), which is the earliest SGS model employed in LES, and given the Smagorinsky coefficient. The second model is dynamic model (DM),...
Numerical approach using the large-eddy simulation based on the compressible hydrodynamic equations is developed and employed in simulating on turbulent flow around a system of two flappers and a stationary foil. Similar conclusions concerning the mean flow profiles and turbulent intensity can be found in the simulation of flow around the flapper and foil system. Extensive studies are conducted on...
The sound generated during the production of sibilant [s] results from the impact of a turbulent jet on the incisors. Physical modeling of this phenomenon depends on the characterization of the properties of the turbulent flow within the vocal tract and of the acoustic sources resulting from the presence of an obstacle in the path of the flow. The properties of the flow-induced noise strongly depend...
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