Work

Statistics in a Backscatter Eddy Viscosity Turbulence Model

Year: 2025

Type: article

Abstract: ABSTRACT This article addresses two significant drawbacks of an eddy viscosity turbulence model: the issue of excessive dissipation relative to energy input and the lack of a universal parameter specification. Considering the Baldwin–Lomax model with backscatter effects, we first prove the existence and uniqueness of global weak solutions under mild conditions. Our next result shows that this model maintains energy dissipation rates consistent with energy input, thereby avoiding over‐dissipation and aligning with phenomenology. Additionally, we propose a range for the model's mixing length.

Source: Numerical Methods for Partial Differential Equations

DOI: 10.1002/num.70026

Authors: Ali Pakzad, Farjana Siddiqua

Institutions: California State University, Northridge, Georgia Institute of Technology

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4413614874

FWCI:

Cites: 47

Cited by:

Related to: 10