Machine learning in aerodynamic shape optimization

J Li, X Du, JRRA Martins - Progress in Aerospace Sciences, 2022 - Elsevier
Abstract Machine learning (ML) has been increasingly used to aid aerodynamic shape
optimization (ASO), thanks to the availability of aerodynamic data and continued …

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 …

Complex standard eigenvalue problem derivative computation for laminar–turbulent transition prediction

Y Shi, C Song, Y Chen, H Rao, T Yang - AIAA Journal, 2023 - arc.aiaa.org
As a high-fidelity approach to transition prediction, the coupled Reynolds-averaged Navier–
Stokes (RANS) and linear stability theory (LST)-based e N method is widely used in …

Dual-convolutional neural network based aerodynamic prediction and multi-objective optimization of a compact turbine rotor

Y Wang, T Liu, D Zhang, Y Xie - Aerospace Science and Technology, 2021 - Elsevier
With the development of neural network technology, surrogate models and dimensionality
reduction strategies based on machine learning have become the research hotspots of …

Hull shape optimization of autonomous underwater vehicles using a full turbulent continuous adjoint solver

R Lavimi, AEB Le Hocine, S Poncet, B Marcos… - Ocean …, 2024 - Elsevier
The present study aims at simultaneously optimizing the nose and tail of two distinct
Autonomous Underwater Vehicles (AUVs) using a full turbulent continuous adjoint solver …

Multifidelity aerodynamic flow field prediction using random forest-based machine learning

J Nagawkar, L Leifsson - Aerospace Science and Technology, 2022 - Elsevier
In this paper, a novel random forest (RF)-based multifidelity machine learning (ML) algorithm
to predict the high-fidelity Reynolds-averaged Navier-Stokes (RANS) flow field is proposed …

Intelligent data-driven aerodynamic analysis and optimization of morphing configurations

JMM Júnior, GLO Halila, Y Kim, T Khamvilai… - Aerospace Science and …, 2022 - Elsevier
In this paper, we develop an online, data-based framework for the aircraft airfoil to be able to
optimally morph vertically. The proposed framework combines data-driven analysis …

[HTML][HTML] Effects of eccentricity in tube–pod arrangements on hyperloop aerodynamics

J Kim, C Lee, TTG Le, D Kim, Y Won, M Cho… - International Journal of …, 2024 - Elsevier
The hyperloop, proposed as an innovative tube-train system, offers numerous transportation
advantages yet exhibits inherent asymmetries arising from the design of the tube and the …

Advancing thermal performance through vortex generators morphing

S Ali, T Dbouk, G Wang, D Wang, D Drikakis - Scientific Reports, 2023 - nature.com
The design of rigid vortex generators (RVG) influences the thermal performance of various
technologies. We employed Discrete Adjoint-Based Optimization to show the optimal …

Field inversion for transitional flows using continuous adjoint methods

AM Hafez, A El-Rahman, I Ahmed, HA Khater - Physics of Fluids, 2022 - pubs.aip.org
Transition modeling represents one of the key challenges in computational fluid dynamics.
While numerical efforts were traditionally devoted to either improving Reynolds-averaged …