Multi-level convolutional autoencoder networks for parametric prediction of spatio-temporal dynamics

J Xu, K Duraisamy - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
A data-driven framework is proposed towards the end of predictive modeling of complex
spatio-temporal dynamics, leveraging nested non-linear manifolds. Three levels of neural …

Ship-helo coupled airwake aerodynamics: a comprehensive review

S Shukla, SS Sinha, SN Singh - Progress in Aerospace Sciences, 2019 - Elsevier
A comprehensive review of the computational and experimental studies for ship-helo
coupled airwakes is presented. The review starts with a brief introduction on the essential …

[HTML][HTML] A review of mathematical modelling techniques for advanced rotorcraft configurations

R Chen, Y Yuan, D Thomson - Progress in Aerospace Sciences, 2021 - Elsevier
The paper will review the development and application of the mathematical modelling of the
advanced rotorcraft configuration, including compound helicopter configurations and tilt …

An investigation of ship airwakes using Detached-Eddy Simulation

JS Forrest, I Owen - Computers & Fluids, 2010 - Elsevier
Computational Fluid Dynamics simulations of ship airwakes have been performed using
Detached-Eddy Simulation (DES) on unstructured grids. A generic simple frigate shape …

Numerical investigation of the aerodynamic interaction between a tiltrotor and a tandem rotor during shipboard operations

JF Tan, TY Zhou, YM Sun, GN Barakos - Aerospace Science and …, 2019 - Elsevier
Complex rotorcraft-to-rotorcraft interference problems occur during shipboard operations,
and have a negative impact on safety. A vortex-based approach is used here to investigate …

Ship-helicopter operating limits prediction using piloted flight simulation and time-accurate airwakes

JS Forrest, I Owen, GD Padfield, SJ Hodge - Journal of Aircraft, 2012 - arc.aiaa.org
This paper gives an overview of the ship–helicopter dynamic interface simulation facility at
the University of Liverpool, with an emphasis on recent improvements made through the …

Shrinking horizon model predictive control method for helicopter–ship touchdown

WB Greer, C Sultan - Journal of Guidance, Control, and Dynamics, 2020 - arc.aiaa.org
A model predictive control (MPC) framework with a fixed maneuver horizon and shrinking
prediction and control horizons is presented that, at each time step, minimizes the most …

[PDF][PDF] Evaluation of high-and mid-fidelity computational fluid dynamics for complex ship airwake analysis with new experimental data

B Oates, E Kurban, J Rauleder… - Proceedings of the 79th …, 2023 - researchgate.net
Safe flight with maneuvers of rotorcraft systems in the near vicinity of Naval ships poses a
number of challenges due to the rapidly changing flow conditions and unsteady wake …

Model predictive control for helicopter shipboard operations in the ship airwakes

TD Ngo, C Sultan - Journal of Guidance, Control, and Dynamics, 2016 - arc.aiaa.org
This study investigates the model predictive control design for helicopter shipboard
operations in the presence of ship airwakes and rough seas. A control oriented helicopter …

Time-resolved ship airwake measurements in a simulated atmospheric boundary layer

D Seth, JG Leishman, E Gnanamanickam, Z Zhang - Journal of Aircraft, 2021 - arc.aiaa.org
The unsteady flows produced over the stern of a Simple Frigate Shape 2 ship model are
studied in a low-speed wind tunnel. Time-resolved particle image velocimetry (TR-PIV) …