Work

Reynolds stress decay modeling informed by anisotropically forced homogeneous turbulence

Year: 2024

Type: article

Abstract: We specifically focus on the terms responsible for decay of the Reynolds stresses which can be isolated and evaluated separately from other terms in a canonical setup of homogeneous turbulence. We show that by using anisotropic forcing of the momentum equation we can access states of turbulence traditionally not probed in a triply-periodic domain. We then consider a variety of model forms for which these data allow us to perform a robust selection of model coefficients and select an optimal model that extends to cubic terms when expressed in terms of the principal coordinate Reynolds stresses.

Source: Physical Review Fluids

DOI: 10.1103/physrevfluids.9.094608

Authors: Ty Homan, Omkar B. Shende, Ali Mani

Institution: Stanford University

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, National Aeronautics and Space Administration, Nuclear Safety and Security Commission, Office of Naval Research

Awards: G142956359, Graduate Research Fellowship Program (GRFP), G2911450482, Graduate Research Fellowship Program (GRFP), G636022427