Statistics of turbulent boundary layers computed by LES of a NACA0012 airfoil

Author(s)

Nogueira, Gabriel B. ; Ricciardi, Tulio R. ; Wolf, William R.

• Document type: Journal article
• Source: AIAA SCITECH 2021 FORUM; v. N/A, p. 13-pg., 2021-01-01.

Abstract

In this work, we perform wall-resolved large eddy simulations to analyze the statistics of airfoil turbulent boundary layers. The impact of different tripping arrangements is assessed for a baseline Reynolds number Re-c = 408,000 based on the airfoil chord. The tripping configurations include two and three-dimensional square profiles and a random tripping composed of several spanwise wavenumbers with phase variations. A study of anisotropy is presented through analysis of the Lumley triangle, Reynolds stress anisotropy tensor, scatter plots of velocity components and probability density functions. The role of different tripping configurations is also discussed for budgets of turbulent kinetic energy. An initial assessment of different Reynolds number flows computed using the random tripping is also presented. (AU)

• FAPESP's process: 13/08293-7 - CCES - Center for Computational Engineering and Sciences
• Grantee: Munir Salomao Skaf
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
• 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
• FAPESP's process: 18/11835-0 - Numerical investigation of aircraft landing gear noise
• Grantee: Tulio Rodarte Ricciardi
• Support Opportunities: Scholarships in Brazil - Doctorate