Aerodynamic design optimization: Challenges and perspectives

JRRA Martins - Computers & Fluids, 2022 - Elsevier
Antony Jameson pioneered CFD-based aerodynamic design optimization in the late 1980s.
In addition to developing the fundamental theory, Jameson implemented that theory in …

Natural laminar-flow airfoil optimization design using a discrete adjoint approach

Y Shi, CA Mader, S He, GLO Halila, JRRA Martins - AIAA Journal, 2020 - arc.aiaa.org
Natural laminar-flow wings are one of the most promising technologies for reducing fuel
burn and emissions for commercial aviation. However, there is a lack of tools for performing …

Adjoint-based aerodynamic shape optimization including transition to turbulence effects

GLO Halila, JRRA Martins, KJ Fidkowski - Aerospace Science and …, 2020 - Elsevier
The inclusion of transition to turbulence effects in aerodynamic shape optimization makes it
possible to use it as a tool for the design of airframes with laminar flow. Modified Reynolds …

A two-equation local-correlation-based laminar-turbulent transition modeling scheme for external aerodynamics

K Liu, Y Wang, WP Song, ZH Han - Aerospace Science and Technology, 2020 - Elsevier
A local-correlation-based laminar-turbulent transition model has been developed for
external aerodynamic problems and coupled with the Spalart-Allmaras (S− A) turbulence …

Smooth local correlation-based transition model for the Spalart–Allmaras turbulence model

MGH Piotrowski, DW Zingg - AIAA Journal, 2021 - arc.aiaa.org
A smooth version of the γ-R˜ e θ t local correlation-based transition model (LM2015) for the
Spalart–Allmaras (SA) turbulence model is presented. The LM2015 model with helicity …

Cost-effective and high-fidelity method for turbulent transition in compressible boundary layer

J Lim, M Kim, S Kim, S Jee, D Park - Aerospace Science and Technology, 2021 - Elsevier
An efficient high-fidelity simulation approach is investigated for laminar-to-turbulent
transition in compressible boundary layer flow. This approach combines large-eddy …

Toward automatic parabolized stability equation-based transition-to-turbulence prediction for aerodynamic flows

GL Olichevis Halila, KJ Fidkowski, JRRA Martins - AIAA Journal, 2021 - arc.aiaa.org
The inclusion of transition-to-turbulence effects in computational fluid dynamics simulations
is essential to accurately predict drag reduction from the use of laminar flow technologies …

Linear stability-based smooth Reynolds-averaged Navier–Stokes transition model for aerodynamic flows

GLO Halila, A Yildirim, CA Mader, KJ Fidkowski… - AIAA Journal, 2022 - arc.aiaa.org
The inclusion of transition to turbulence effects in computational fluid dynamics simulations
makes it possible to design laminar flow airframes. It also increases the level of physical …

Discrete adjoint-based aerodynamic shape optimization framework for natural laminar flows

H Kaya, İH Tuncer - AIAA Journal, 2022 - arc.aiaa.org
An adjoint-based aerodynamic shape optimization framework for natural laminar flows is
developed. The laminar to turbulent-transition onset is predicted by the correlation-based …

Variable-fidelity multipoint aerodynamic shape optimization with output-based adapted meshes

G Chen, KJ Fidkowski - Aerospace Science and Technology, 2020 - Elsevier
This paper presents a method to control the discretization error in multipoint aerodynamic
shape optimization using output-based adapted meshes. The meshes are adapted via …