Volume 132, Number 1, October 2020
|Number of page(s)||7|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||03 November 2020|
Langevin models for non-homogeneous turbulent flows: Determination of the coefficients
Department of Mathematics, University of Wyoming - Laramie, WY 82071-0333, USA
Received: 28 June 2020
Accepted: 13 October 2020
Stochastic turbulence models are supposed to significantly support future computational fluid dynamics developments via the design of realizable, stable dynamic simulation methods and by providing a basis for uncertainty quantification. However, there is the nontrivial question of how such stochastic models can be designed for general non-homogeneous and non-stationary flows. Two new approaches are presented for that. Analyses of the performance of these methods in comparison to the conventionally applied method reveal remarkable differences and advantages.
PACS: 47.27.-i – Turbulent flows / 05.10.Gg – Stochastic analysis methods (Fokker-Planck, Langevin, etc.) / 47.27.E- – Turbulence simulation and modeling
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