A5100721754- Fluid Dynamics and Vibration Analysis
- Wave and Wind Energy Systems
- Wind Energy Research and Development
- Biomimetic flight and propulsion mechanisms
- Fluid Dynamics and Turbulent Flows
- Vibration and Dynamic Analysis
- Wind and Air Flow Studies
- Aerospace Engineering and Energy Systems
- Underwater Vehicles and Communication Systems
- Computational Fluid Dynamics and Aerodynamics
- Micro and Nano Robotics
- Coastal and Marine Dynamics
- Lattice Boltzmann Simulation Studies
- Remote Sensing and Land Use
- Environmental Changes in China
- Cerebrospinal fluid and hydrocephalus
- Fetal and Pediatric Neurological Disorders
- Fluid Dynamics Simulations and Interactions
- Fish Ecology and Management Studies
- Fluid Dynamics and Mixing
- Aerodynamics and Acoustics in Jet Flows
- Cavitation Phenomena in Pumps
- Plant Water Relations and Carbon Dynamics
- Ship Hydrodynamics and Maneuverability
- Aerodynamics and Fluid Dynamics Research
University of Strathclyde
2016-2025
Aerospace Information Research Institute
2021-2025
Nanchang University
2021-2025
State Key Laboratory of Remote Sensing Science
2003-2025
China Communications Construction Company (China)
2024
Yunnan University
2024
University of Chinese Academy of Sciences
2021-2024
Chinese Academy of Sciences
2008-2024
Guizhou University
2010-2024
Sichuan University
2024
An accurate study of a floating offshore wind turbine (FOWT) system requires interdisciplinary knowledge about aerodynamics, platform hydrodynamics and mooring line dynamics, as well interaction between these discipline areas. Computational Fluid Dynamics (CFD) provides new means analysing fully coupled fluid-structure (FSI) in detailed manner. In this paper, numerical tool based on the open source CFD toolbox OpenFOAM for application to FOWTs will be described. Various benchmark cases are...
Previous research on the flexible structure of flapping wings has shown an improved propulsion performance in comparison to rigid wings. However, not much is known about this function terms power efficiency modification for wing energy devices. In order study role deformation hydrodynamics devices, we computationally model two-dimensional single and twin operation under extraction conditions with a large Reynolds number 106. The motion present predetermined based priori structural result...
Abstract. This paper provides a summary of the work done within Phase III Offshore Code Comparison Collaboration, Continued, with Correlation and unCertainty (OC6) project, under International Energy Agency Wind Technology Collaboration Programme Task 30. phase focused on validating aerodynamic loading wind turbine rotor undergoing large motion caused by floating support structure. Numerical models Technical University Denmark 10 MW reference were validated using measurement data from 1:75...
Abstract Modern offshore wind turbines are susceptible to blade deformation because of their increased size and the recent trend installing these on floating platforms in deep sea. In this paper, an aeroelastic analysis tool for is presented by coupling a high‐fidelity computational fluid dynamics (CFD) solver with general purpose multibody code, which capable modelling flexible bodies based nonlinear beam theory. With developed, we demonstrated its applications NREL 5 MW turbine blades. The...
This work presents the application of reinforcement learning for optimal resistive control a point absorber. The model-free Q-learning algorithm is selected in order to maximise energy absorption each sea state. Step changes are made controller damping, observing associated penalty, excessive motions, or reward, i.e. gain power. Due general periodicity gravity waves, absorbed power averaged over time horizon lasting several wave periods. performance assessed through numerical simulation...
In this paper, we present numerical modelling for the investigation of dynamic responses a floating offshore wind turbine subject to focused waves. The was carried out using Computational Fluid Dynamics (CFD) tool. We started with generation wave in tank based on first-order irregular theory, then validated developed method wave-structure interaction via study production storage and offloading (FPSO) wave. Subsequently, investigated wave-/wind-structure fixed semi-submersible platform,...
Flexible tube wave energy converters (WECs) are a novel class of devices utilizing deformable materials, offering structural simplicity, broad-band conversion, and adaptability to diverse conditions. While prior studies have examined their hydro-elastic behavior, the nonlinear coupling between internal external fluid fields its impact on fluid–structure interaction (FSI) responses remain insufficiently understood. This study employs high-fidelity FSI framework, integrating computational...
The flow of the BauerGarabedianKorn (BGK) No. 1 supercritical airfoil is investigated by solution unsteady Reynolds-averagedNavierStokes equations with a two-equation lagged kωturbulent model.Two steady cases (M=0.71, α=1.396 deg and M=0.71, α=9.0 deg) one case α=6.97 deg), all far-stream Reynolds number 20106, are computed. results compared available experimental data. computed shock motion evolution concomitant separation examined. Space-time correlations pressure field used to calculate...
Separation of supersonic flow in a planar convergent-divergent nozzle with moderate expansion ratio is investigated by solving the Reynolds-averaged Navier-Stokes equations two-equation k-! turbulence model.The focus study on structure fluid and wave phenomena associated separation.Computations are conducted for an exit-to-throat area 1.5 range pressure ratios.The results compared available experimental data same geometry.The separates action lambda shock, followed succession compression...
The two-degree-of-freedom (2DOF) vortex-induced vibration (VIV) of a circular cylinder with varying in-line to cross-flow natural frequency ratios (f∗=fnx∕fny) is studied using three-dimensional (3D) computational fluid dynamics (CFD) approach. Numerical simulation carried out for constant mass ratio 2 at fixed Reynolds number Re=500. reduced velocity ranges from 12. Three are considered, i.e., f∗=1,1.5 and 2. structural damping set zero maximise the response cylinder. main objective this...
In this article, reinforcement learning is used to obtain optimal reactive control of a two-body point absorber. particular, the Q-learning algorithm adopted for maximization energy extraction in each sea state. The controller damping and stiffness coefficients are varied steps, observing associated reward, which corresponds an increase absorbed power, or penalty, owing large displacements. generated power averaged over time horizon spanning several wave cycles due periodicity ocean waves,...
It is well known that structural flexibility enhances the performance of flapping foil propellers. There is, however, much less knowledge about effect deformability on flow energy extraction capacity foils. Following recent work an oscillating harvesting device with prescribed deformations (Liu et al., "A Bio-Inspired Study Tidal Energy Extraction Flexible Flapping Wings," Bioinspiration and Biomimetics, Vol. 8, No. 3, 2013, Paper 036011), fully coupled dynamics a harvester passively...