Aerodynamics
View article: Analysis of Structural Responses of a Horizontal Axis Wind Turbine at Maximum Aerodynamic Performance
Analysis of Structural Responses of a Horizontal Axis Wind Turbine at Maximum Aerodynamic Performance Open
This numerical analysis investigates the interplay between fluid dynamics and structural mechanics within a horizontal axis wind turbine. Tip speeds ranging from 1 to 8.1 are explored, focusing on blade structural responses at maximum aero…
View article: The effect of tip-speed ratio and free-stream turbulence on the coupled wind turbine blade/wake dynamics
The effect of tip-speed ratio and free-stream turbulence on the coupled wind turbine blade/wake dynamics Open
Wind turbines operating within wind farms experience complex aerodynamic loading arising from the interplay between wake-induced velocity deficits, enhanced turbulence, and varying operational conditions. Understanding the relationship bet…
View article: Conceptual Design of Boundary Layer Suction System for Energy Efficient Laminar Flow Control
Conceptual Design of Boundary Layer Suction System for Energy Efficient Laminar Flow Control Open
Hybrid Laminar Flow Control (HLFC) is one of the technologies that shows significant drag reduction potential for the aircraft. Even though the concept of HLFC was proven in the 1960s, a reliable, economically feasible, and energy-efficien…
View article: Research on Key Technologies for Flight Training Based on Simulation Platforms and Its Teaching Practice
Research on Key Technologies for Flight Training Based on Simulation Platforms and Its Teaching Practice Open
Simulation platforms play an increasingly vital role in the ab initio training of flight students and their mastery of key technologies. This paper integrates four specialized research projects completed under the author's supervision, sys…
View article: Racing Technology Optimisation: Drag Control and Downforce
Racing Technology Optimisation: Drag Control and Downforce Open
This paper explores the aerodynamic optimisation of racing vehicles, with a specific focus on drag reduction and downforce generation. The study outlines fundamental aerodynamic principles affecting racing performance, such as drag coeffic…
View article: Semi‐Submersible Wind Turbine Operational Safety, by Gaidai Multidimensional Structural Reliability Assessment Method
Semi‐Submersible Wind Turbine Operational Safety, by Gaidai Multidimensional Structural Reliability Assessment Method Open
Purpose Importance of discovering clean, renewable energy sources, rather than being dependent on the world's finite hydrocarbon resources is growing. As a result, wind power, especially offshore wind, is an alternative gaining popularity …
View article: Flow Over a Cylinder: Simulation Datasets Using JAX-Fluids (Re = 10–800)
Flow Over a Cylinder: Simulation Datasets Using JAX-Fluids (Re = 10–800) Open
This dataset contains computational fluid dynamics (CFD) simulations of flow past a cylinder across Reynolds numbers (Re) ranging from 10 to 800, generated using the JAX-Fluids 2.0 solver (https://github.com/tumaer/JAXFLUIDS) developed by …
View article: A Review of Current Status and Future Trends in Aerodynamic Optimization of Civil Airliners
A Review of Current Status and Future Trends in Aerodynamic Optimization of Civil Airliners Open
In recent years, civil aviation has increasingly focused on improving aerodynamic performance to reduce fuel consumption and emissions. This emphasis is driven by rising fuel costs and stricter environmental regulations, thereby prompting …
View article: Going with the Speed of Sound: Pushing Neural Surrogates into Highly-turbulent Transonic Regimes
Going with the Speed of Sound: Pushing Neural Surrogates into Highly-turbulent Transonic Regimes Open
The widespread use of neural surrogates in automotive aerodynamics, enabled by datasets such as DrivAerML and DrivAerNet++, has primarily focused on bluff-body flows with large wakes. Extending these methods to aerospace, particularly in t…
View article: The Impact of Shock Wave Control on the Structural Design of Supersonic Aircraft
The Impact of Shock Wave Control on the Structural Design of Supersonic Aircraft Open
Aviation technology keeps developing, so supersonic aircraft have become a key research focus. This is because they have advantages in efficiency and speed. However, the shock waves from supersonic flight cause problems. They increase aero…
View article: Coupled optimization of airfoil shape and configuration parameters of highly loaded compressor tandem cascades
Coupled optimization of airfoil shape and configuration parameters of highly loaded compressor tandem cascades Open
Tandem cascade is an effective aerodynamic design approach for suppressing boundary layer separation and improving the stability margin. To obtain subsonic tandem cascades with excellent performance and establish corresponding general desi…
View article: Research on aerodynamic performance based on geometric dimensions of mining counter-rotating axial flow fan
Research on aerodynamic performance based on geometric dimensions of mining counter-rotating axial flow fan Open
View article: Enabling Sustainable After-Market Aircraft Electrification: Aerodynamic Impact of High-Performance Battery Cooling Ports
Enabling Sustainable After-Market Aircraft Electrification: Aerodynamic Impact of High-Performance Battery Cooling Ports Open
The transition to electric aircraft for zero-emission transport requires integrating thermal management systems for high-performance batteries without incurring significant weight, balance, or aerodynamic penalties. This study focuses on t…
View article: Multiflux Spinning Lenticular Vehicle (MSLV) – "Quantum Frisbee": Optimal Hypersonic/Re-entry Architecture Derived from the Regimental Quantum Transition
Multiflux Spinning Lenticular Vehicle (MSLV) – "Quantum Frisbee": Optimal Hypersonic/Re-entry Architecture Derived from the Regimental Quantum Transition Open
Multiflux Spinning Lenticular Vehicle (MSLV) – “Quantum Frisbee”: Optimal Hypersonic/Re-entry Architecture Derived from the Regimental Quantum Transition This technical report presents the first vehicle architecture ever derived from a mac…
View article: Inverse Design Method for Centrifugal Compressors in Carnot batteries
Inverse Design Method for Centrifugal Compressors in Carnot batteries Open
This paper presents a new inverse design method for centrifugal compressors, meant for researchers in the field of thermodynamic cycle design. It extends the state of the art in centrifugal compressor design methods by offering a fully aut…
View article: Going with the Speed of Sound: Pushing Neural Surrogates into Highly-turbulent Transonic Regimes
Going with the Speed of Sound: Pushing Neural Surrogates into Highly-turbulent Transonic Regimes Open
The widespread use of neural surrogates in automotive aerodynamics, enabled by datasets such as DrivAerML and DrivAerNet++, has primarily focused on bluff-body flows with large wakes. Extending these methods to aerospace, particularly in t…
View article: Resolving three-dimensional wind velocity fields with sequential wind-Doppler LiDAR for wind energy in the complex terrain - Gotthard Pass, Switzerland
Resolving three-dimensional wind velocity fields with sequential wind-Doppler LiDAR for wind energy in the complex terrain - Gotthard Pass, Switzerland Open
Background Understanding the effects of complex terrain on wind turbines in alpine regions requires high-resolution computational modelling accompanied by detailed wind observations. In technologically advanced measurement campaigns, often…
View article: Thermal Management of Unmanned Aerial Vehicle Power Systems Using Ducted Forced Convection and Computational Fluid Dynamic Validation
Thermal Management of Unmanned Aerial Vehicle Power Systems Using Ducted Forced Convection and Computational Fluid Dynamic Validation Open
The increasing power density of Unmanned Aerial Vehicles (UAVs) has intensified the need for the efficient thermal management of their propulsion and electronic subsystems. This paper presents a systematic multi-fidelity methodology for th…
View article: Physics-Informed Neural Networks Simulation and Validation of Airflows in Three-Dimensional Upper Respiratory Tracts
Physics-Informed Neural Networks Simulation and Validation of Airflows in Three-Dimensional Upper Respiratory Tracts Open
Accurate and efficient simulation of airflows in human airways is critical for advancing the understanding of respiratory physiology, disease diagnostics, and inhalation drug delivery. Traditional computational fluid dynamics (CFD) provide…
View article: Nonlinear Stability and Vibration Analysis of Flexible Spacecraft Solar Arrays under Thermally Induced Deformations within the Thermal Flutter Regime during the Penumbra Phase
Nonlinear Stability and Vibration Analysis of Flexible Spacecraft Solar Arrays under Thermally Induced Deformations within the Thermal Flutter Regime during the Penumbra Phase Open
This study develops a nonlinear analytical model of a spacecraft with flexible solar arrays to investigate complex vibration phenomena occurring within the thermal flutter regime, particularly during the satellite’s transition through the …
View article: Turbulent coherent structures, from taxonomy to engineering
Turbulent coherent structures, from taxonomy to engineering Open
This review synthesises contemporary understanding and engineering applications of turbulent coherent structures (TCS) in boundary layer flows and evaluates a spectrum of active and passive control techniques. We begin by classifying seven…
View article: Wind turbine performance and control in complex terrain
Wind turbine performance and control in complex terrain Open
Wind energy projects in complex terrain are often associated with high uncertainties regarding the expected power performance. These uncertainties are mostly attributed to difficulties in obtaining reliable wind speed estimates. However, a…
View article: The PLUTO Code on GPUs: A First Look at Eulerian MHD Methods
The PLUTO Code on GPUs: A First Look at Eulerian MHD Methods Open
We present preliminary performance results of gPLUTO, the new GPU-optimized implementation of the PLUTO code for computational plasma astrophysics. Like its predecessor, gPLUTO employs a finite-volume formulation to numerically solve the e…
View article: A novel comprehensible non-intrusive sensitivity-driven additive Aerodynamic Shape Optimization (AASO) and its implementation using the Lattice Boltzmann Method (AASO-LBM)
A novel comprehensible non-intrusive sensitivity-driven additive Aerodynamic Shape Optimization (AASO) and its implementation using the Lattice Boltzmann Method (AASO-LBM) Open
Shape optimization is a relevant topic in many fields such as e.g. fluid energy harvesting, passive mixer design or pressure loss reduction in channels. Although the literature is rich in applications of surrogate-based, adjoint-based or t…
View article: Aerodynamic Analysis of a Simple Folding Rectangular Wing at Different Cant Angles
Aerodynamic Analysis of a Simple Folding Rectangular Wing at Different Cant Angles Open
This paper investigates the aerodynamic effects of varying the cant angle of a simple folding rectangular wing with a NACA2412 cross section. Four different cant angles have been considered at four different Reynolds numbers for this study…
View article: Aerodynamic control analysis in a canard configuration for a surface-to-surface missile
Aerodynamic control analysis in a canard configuration for a surface-to-surface missile Open
The modern battlefield requires highly accurate missiles, which has led to the modification of unguided missiles into guided versions. This paper presents the process of adapting an unguided missile with a range of 40 km into a guided vers…
View article: Study on the Thrust Characteristics of Vector Thrusters Under Complex Inclination Angle Variations
Study on the Thrust Characteristics of Vector Thrusters Under Complex Inclination Angle Variations Open
A parallel-type vector thruster was designed, and its dynamic performance was systematically investigated using a combination of mechanical structural analysis, numerical calculations, and experimental methods. First, a thrust model of the…
View article: A Generic Cyclist Model for Aerodynamic Investigation
A Generic Cyclist Model for Aerodynamic Investigation Open
This collection is meant to contain all published datasets regarding the Generic Cyclist Model (GCM). The individual datasets contain the actual data about the GCM, while this collection is simply an umbrella vehicle that links all the dat…
View article: Data underlying the research on Male Time-Trial GCM: A complete rider-bike geometry & the effects of Reynolds number and yaw angle variations on the aerodynamic loads and the surrounding flow
Data underlying the research on Male Time-Trial GCM: A complete rider-bike geometry & the effects of Reynolds number and yaw angle variations on the aerodynamic loads and the surrounding flow Open
This dataset contains new data concerning the male time-trial GCM that was originally introduced by Terra et al. 2024 (DOI:10.4121/a6bafb56-588e-40cd-a304-4a1cd61a312d). In the original dataset, the geometry of, among others, the bike and …
View article: Design and Analysis of Aerodynamics of in a Race Car for Drag Reduction
Design and Analysis of Aerodynamics of in a Race Car for Drag Reduction Open
This research uses Computational Fluid Dynamics (CFD) to improve the aerodynamic performance of a racing car. A 3D SolidWorks model was analyzed to study airflow, pressure zones, and wake formation. After modifying the nose, side pods, and…