Evaluation of Explicit Algebraic Reynolds Stress Models for Turbulent Flow Simulations

Author(s)

Silva, Thamires das Chagas ; Azevedo, Joao Luiz F.

• Document type: Journal article
• Source: AIAA AVIATION FORUM AND ASCEND 2024; v. N/A, p. 17-pg., 2024-01-01.

Abstract

Two explicit algebraic Reynolds stress models (EARSMs) are evaluated in the present work to simulate turbulent flows around aeronautical configurations. The paper solves the 3-D Reynolds-averaged Navier-Stokes (RANS) equations, coupled with appropriate turbulence closure models. Equations are discretized using a cell-centered, finite volume method for general unstructured grids. The main thrust of the work is to study the possible improvement in the representation of flight conditions in which there are shock waves, interaction between shock waves and boundary layers, or flows with separation. The present work is part of an effort concerned with evaluating the effects of more advanced turbulence models in the solution of such flows, at the same time that providing for a cost-effective flow simulation capability that could be used by industry. The test cases addressed in the paper, although still somewhat simplified, demonstrate that there is potential for improvement in the representation of transonic flows with shock waves with the use of the nonlinear turbulence models. (AU)

• FAPESP's process: 21/11258-5 - Engineering Research Center for the Aerial Mobility of the Future (ERC-AMF)
• Grantee: Domingos Alves Rade
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 23/09177-2 - Nonlinear eddy-viscosity model coupled to laminar-turbulent transition model
• Grantee: Thamires das Chagas Silva
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry
• Grantee: Francisco Louzada Neto
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC