Blade pitching in vertical axis wind turbines: A double multiple stream tube theoretical approach to performance enhancement by Antim Gupta, Ussama Ali, Hamid Ait Abderrahmane, Isam Janajreh

“…This study addresses these challenges by proposing a novel variable blade pitching mechanism that dynamically adapts to changing wind conditions, optimizing the aerodynamic performance, and enhancing the torque and overall performance of VAWT rotor. …”
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Detailed Parametric Investigation and Optimization of a Composite Wing with High Aspect Ratio by Yu-shan Meng, Li Yan, Wei Huang, Tian-tian Zhang

“…The wing design follows the following procedure; firstly, the design indexes of high aspect ratio wing are preliminarily formulated referring to some parameters of the Predator UAV. Then, the aerodynamic analysis of the wing is performed, and the stress cloud diagram is obtained. …”
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Analytical Equations for Thermoacoustic Instability Sources and Acoustic Radiation from Reacting Turbulence by S. A. E. Miller

“…We identify both combustion-combustion and combustion-aerodynamic interaction source terms. Both classical combustion noise theory and classical Rayleigh criterion are recovered from the presently developed more general theory. …”
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Inviscid and Viscous Interactions in Subsonic Corner Flows by Kung-Ming Chung, Po-Hsiung Chang, Keh-Chin Chang

“…To characterize the aerodynamic performance of a deflected surface in compressible flows, the present study examines a naturally developed turbulent boundary layer past the convex and concave corners. …”
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Influence of Segmented Linings on the Micro-Pressure Wave of Tunnels by Tao Li, Mingyu Shao, Weibin Ma, Yanbin Liang, Yufei Fang

“…In this study, a three-dimensional numerical method is performed to study the aerodynamic effects caused by the train passing through a tunnel with segmented linings at 350 km/h. …”
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Analytical Predictor-Corrector Guidance Algorithm Based on Drag Modulation Flight Control System for Mars Aerocapture by Yu-ming Peng, Bo Xu, Bao-dong Fang, Han-lun Lei

“…The simulation results show that the guidance algorithm is accurate and robust, which can effectively overcome the influence of atmospheric density error, aerodynamic parameter error, and initial state uncertainty.…”
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Flow Characteristics Study of Wind Turbine Blade with Vortex Generators by Hao Hu, Xin-kai Li, Bo Gu

“…The blade root flow control is of particular importance to the aerodynamic characteristic of large wind turbines. The paper studies the feasibility of improving blade pneumatic power by applying vortex generators (VGs) to large variable propeller shaft horizontal axis wind turbines, with 2 MW variable propeller shaft horizontal axis wind turbine blades as research object. …”
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Bionic Design of Wind Turbine Blade Based on Long-Eared Owl’s Airfoil by Weijun Tian, Zhen Yang, Qi Zhang, Jiyue Wang, Ming Li, Yi Ma, Qian Cong

“…Numerical analysis method was utilized to study the aerodynamic characteristics of the airfoils as well as the blades. …”
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Theoretical Analysis of Isentropic Exponent Effects on the Internal Flow of Supercritical CO2 Centrifugal Compressors by Ben Zhao, Zhiyuan Liu

“…The isentropic exponent in the near-critical region can sharply change with operation condition transitions of a closed Brayton cycle, thus having significant impacts on the compressor aerodynamic performance and the internal flow of the compressor embedded into the cycle. …”
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Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations by Mohammad Amin Rashidifar, Darvish Ahmadi

“…In aeroelastic self-excited vibrations, the aerodynamic generalized force of a specified mode can be described as a linear function of the generalized coordinate and its derivatives. …”
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An Algorithm for Global Optimization Inspired by Collective Animal Behavior by Erik Cuevas, Mauricio González, Daniel Zaldivar, Marco Pérez-Cisneros, Guillermo García

“…These collective behaviors are often advantageous to groups, allowing them to increase their harvesting efficiency, to follow better migration routes, to improve their aerodynamic, and to avoid predation. In the proposed algorithm, the searcher agents emulate a group of animals which interact with each other based on the biological laws of collective motion. …”
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A Numerical Scheme Based on an Immersed Boundary Method for Compressible Turbulent Flows with Shocks: Application to Two-Dimensional Flows around Cylinders by Shun Takahashi, Taku Nonomura, Kota Fukuda

“…In addition, the resulting aerodynamic force is significantly improved. Also, the present scheme is successfully applied to moving two-cylinder problems.…”
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Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades by G. Bernardini, E. Piccione, A. Anobile, J. Serafini, M. Gennaretti

“…The process exploits an aeroelastic solver that is based on a nonlinear, beam-like model, suited for the analysis of arbitrary curved-elastic-axis blades, with the introduction of a surrogate wake inflow model for the analysis of sectional aerodynamic loads. Numerical results are presented to demonstrate the capability of the proposed approach to identify low vibratory hub loads rotor blades as well as to assess the robustness of solution at off-design operating conditions. …”
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A Sliding Mode Approach to Vector Field Path Following for a Fixed-Wing UAV by Luca Pugi, Lorenzo Franchi, Samuele Favilli, Giuseppe Mattei

“…This high-fidelity model considers the six-degrees-of-freedom (DoF) whole-flight dynamics of the UAV and it is based on experimental flight test data to implement the aerodynamic behavior.…”
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Numerical and experimental investigation of piezoelectric-pneumatic material jet printing method for high-viscosity ink by Xinyi Hu, Xiaoran Dong, Zhanda Li, Junhui Long, Yuan Jin, Hui Li

“…In this work, a two-dimensional computational fluid dynamics model is presented to elucidate the multiphase aerodynamic phenomenon and deposition morphology of jet printing features. …”
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The Effect of Rigging Angle on Longitudinal Direction Motion of Parafoil-Type Vehicle: Basic Stability Analysis and Wind Tunnel Test by Takahiro Moriyoshi, Kazuhiko Yamada, Hiroyuki Nishida

“…Above all, a parameter called Rigging Angle (RA) is sensitive to the aerodynamic characteristics of a paraglider during flight. …”
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Projection-Based Adaptive Backstepping Control of a Transport Aircraft for Heavyweight Airdrop by Ri Liu, Xiuxia Sun, Wenhan Dong, Guangzhi Xu

“…The results show good performance and robust operation of the controller, and the airdrop mission performance indexes are satisfied, even in the presence of ±15% uncertainty in the aerodynamic coefficients, ±0.01 rad/s pitch rate disturbance, and 20% actuators faults.…”
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Association between Air Pollution and Risk of Hospital Admission for Pediatric Pneumonia in a Tropical City, Kaohsiung, Taiwan by Peng-Huei Liu, Kuo-Chen Huang, Yu-Lun Tseng, I-Min Chiu, Hsiu-Yung Pan, Fu-Jen Cheng

“…Data on PM2.5 (PM with an aerodynamic diameter smaller than 2.5 µm), PM10 (PM with an aerodynamic diameter smaller than 10 µm), sulfur dioxide (SO2), nitrogen dioxide (NO2), and ozone (O3) in each of the 11 air monitoring stations in Kaohsiung city were collected. …”
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Feasibility of Hydrogen Energy for High-Power Aerospace Applications: A Comprehensive Assessment by Cai Zhenglin

“…Considerations include structural design, aerodynamic characteristics, weight distribution, refueling infrastructure, and regulatory compliance. …”
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Effect of Atmospheric Pollutants on the Air Quality in Tunisia by Karim Bouchlaghem, Blaise Nsom

“…This paper presents the evolution of Saharan dust advection when the PM10 (particles with an aerodynamic diameter below 10 μm) concentration exceeds standard limits in different Tunisian sites. …”
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