Yufeng Yao's Outputs (185)

Drag reduction of lift-type vertical axis wind turbine with slit modified gurney flap (2024)
Journal Article

This study examines aerodynamic performance enhancement of Vertical Axis Wind Turbine (VAWT) blades with Gurney flap (GF) modified by slits. A quasi-3D computational fluid dynamics solution based on Reynolds-averaged Navier-Stokes model is employed t... Read More about Drag reduction of lift-type vertical axis wind turbine with slit modified gurney flap.

Micromechanical modeling of longitudinal compression behavior and failure mechanism of unidirectional carbon fiber reinforced aluminum composites involving initial fiber misalignment (2024)
Journal Article

A micromechanical model with realistic initial fiber misalignment (IFM) was developed to simulate the longitudinal compression behavior of unidirectional carbon fiber/aluminum composites. The matrix and fiber were modeled using ductile damage law and... Read More about Micromechanical modeling of longitudinal compression behavior and failure mechanism of unidirectional carbon fiber reinforced aluminum composites involving initial fiber misalignment.

Coupled morphing of leading and trailing-edge aerofoil for improved aerodynamic and aeroacoustic performance (2024)
Presentation / Conference Contribution

Event-triggered tracking control for switched nonlinear systems (2023)
Journal Article

In this paper, we study the output tracking control problem based on the event-triggered mechanism for cascade switched nonlinear systems. Firstly, an integral controller based on event-triggered conditions is designed, and the output tracking error... Read More about Event-triggered tracking control for switched nonlinear systems.

Aerodynamics of a CRM joined-wing configuration at transonic speeds (2023)
Presentation / Conference Contribution

The presented work aims to showcase a joined-wing (JW) concept with key design parameters based on the NASA Common Research Model (CRM) configuration, to highlight its potential application for an efficient commercial transport or cargo aircraft flyi... Read More about Aerodynamics of a CRM joined-wing configuration at transonic speeds.

Validation of shock-wave/turbulent boundary-layer interaction flows by high-fidelity numerical simulations (2022)
Presentation / Conference Contribution

Shock-wave/turbulent-boundary-layer interactions (SWTBLI) are prevalent phenomena around high-speed vehicles. The resultant strong adverse pressure gradient will induce large flow separation, high wall heat flux, and strong pressure fluctuation, alon... Read More about Validation of shock-wave/turbulent boundary-layer interaction flows by high-fidelity numerical simulations.

Unsteady flow oscillations in a 3-D ventilated model room with convective heat transfer (2022)
Journal Article

Improving indoor air quality and energy consumption is one of the high demands in the building sector. In this study, unsteady flow oscillations in a 3-D ventilated model room with convective heat transfer have been studied for three configurations o... Read More about Unsteady flow oscillations in a 3-D ventilated model room with convective heat transfer.

Transient CFD modelling of air–water two-phase annular flow characteristics in a small horizontal circular pipe (2022)
Journal Article

The liquid film formed around the inner walls of a small horizontal circular pipe often exhibits non-uniform distributions circumferentially, where the film is thinner at the top surface than the bottom one. Even with this known phenomenon, the probl... Read More about Transient CFD modelling of air–water two-phase annular flow characteristics in a small horizontal circular pipe.

Optimisation of straight plate upstream deflector for the performance enhancement of vertical axis wind turbine at low, medium and high regimes of tip speed ratios (2022)
Journal Article

Location and geometry optimisations of Straight Plate Upstream Deflector (SPUD) for performance enhancement of a three-straightbladed Vertical Axis Wind Turbine (VAWT) are carried out at three regimes of tip speed ratios (TSRs). Results analysis reve... Read More about Optimisation of straight plate upstream deflector for the performance enhancement of vertical axis wind turbine at low, medium and high regimes of tip speed ratios.

A review on the use of passive flow control devices as performance enhancement of lift-type vertical axis wind turbines (2022)
Journal Article

This article provides a comprehensive review about passive flow control devices (PFCDs) implemented in lift-type vertical axis wind turbine (LVAWT), focusing on the underlying flow physics mechanisms and to what extents they can improve the LVAWT per... Read More about A review on the use of passive flow control devices as performance enhancement of lift-type vertical axis wind turbines.

Effects of an unsteady morphing wing with seamless side-edge transition on aerodynamic performance (2022)
Journal Article

This paper presents an unsteady flow analysis of a 3D wing with a morphing trailing edge flap (TEF) and a seamless side-edge transition between the morphed and static parts of a wing by introducing an unsteady parametrization method. First, a 3D stea... Read More about Effects of an unsteady morphing wing with seamless side-edge transition on aerodynamic performance.

Deep learning based customer preferences analysis in industry 4.0 environment (2021)
Journal Article

Customer preferences analysis and modelling using deep learning in edge computing environment are critical to enhance customer relationship management that focus on a dynamically changing market place. Existing forecasting methods work well with ofte... Read More about Deep learning based customer preferences analysis in industry 4.0 environment.

Geometry optimisation of vertical axis wind turbine with Gurney flap for performance enhancement at low, medium and high ranges of tip speed ratios (2021)
Journal Article

Optimisation of Gurney flap (GF) geometries mounted on a three-straight-bladed vertical axis wind turbine (VAWT) is evaluated with computational fluid dynamics (CFD) solution and Taguchi method, considering the blade rotating effect at three tip spee... Read More about Geometry optimisation of vertical axis wind turbine with Gurney flap for performance enhancement at low, medium and high ranges of tip speed ratios.

Optimal design of grid-connected rooftop PV systems: An overview and a new approach with application to educational buildings in arid climates (2021)
Journal Article

Recently, rooftop photovoltaic (PV) systems are widely deployed due to their technical, economic and socio-environmental benefits. This paper presents a new design approach, which combines spatial analysis with techno-economic optimization for a robu... Read More about Optimal design of grid-connected rooftop PV systems: An overview and a new approach with application to educational buildings in arid climates.

Anatomy of air entrapment in drop impact on a solid surface (2021)
Journal Article

When a drop impacts on a solid surface, a thin air film is entrapped first and later evolves into a spherical air bubble at the center inside the drop. The problem involves several complex physical processes, including two-phase fluid flow interactio... Read More about Anatomy of air entrapment in drop impact on a solid surface.

Near stall unsteady flow responses to morphing flap deflections (2021)
Journal Article

The unsteady flow characteristics and responses of an NACA 0012 airfoil fitted with a bio-inspired morphing trailing edge flap (TEF) at near-stall angles of attack (AoA) undergoing downward deflections are investigated at a Reynolds number of 0.62 ×... Read More about Near stall unsteady flow responses to morphing flap deflections.

Aerodynamic and aeroacoustic analysis of a harmonically morphing airfoil using dynamic meshing (2021)
Journal Article

This work explores the aerodynamic and aeroacoustic responses of an airfoil fitted with a harmonically morphing Trailing Edge Flap (TEF). An unsteady parametrization method adapted for harmonic morphing is introduced, and then coupled with dynamic me... Read More about Aerodynamic and aeroacoustic analysis of a harmonically morphing airfoil using dynamic meshing.

U-model-based two-degree-of-freedom internal model control of nonlinear dynamic systems (2021)
Journal Article

This paper proposes a U-Model-Based Two-Degree-of-Freedom Internal Model Control (UTDF-IMC) structure with strength in nonlinear dynamic inversion, and separation of tracking design and robustness design. This approach can effectively accommodate mod... Read More about U-model-based two-degree-of-freedom internal model control of nonlinear dynamic systems.

Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges (2020)
Journal Article

Comparison study of unsteady Reynolds-averaged Navier-Stokes (URANS) and hybrid RANS-LES models is carried out for predicting the performance of three-straight-bladed vertical axis wind turbine operating within tip speed ratios (TSRs) ranges of (1.44... Read More about Comparison study of URANS and hybrid RANS-LES models on predicting vertical axis wind turbine performance at low, medium and high tip speed ratio ranges.

Design optimization of grid-connected PV-Hydrogen for energy prosumers considering sector-coupling paradigm: Case study of a university building in Algeria (2020)
Journal Article

Integrating sector coupling technologies into Hydrogen (H2) based hybrid renewable energy systems (HRES) is becoming a promising way to create energy prosumers, despite the very little research work being done in this largely unexplored field. In thi... Read More about Design optimization of grid-connected PV-Hydrogen for energy prosumers considering sector-coupling paradigm: Case study of a university building in Algeria.