Approach and Landing Aircraft Wake Encounter Risk Based on Reynolds-Averaged Navier-Stokes Numerical Simulation by Weijun Pan, Jingkai Wang, Yaxing Xu, Qianlan Jiang, Yuming Luo

“…In order to shorten the wake safe separation, numerical simulation technology with aerodynamic response models and strip models have been combined to calculate wake hazard zone. …”
Get full text

An Experimental Characterization on the Acoustic Performance of Forward/Rearward Retraction of a Nose Landing Gear by Yong Liang, Kun Zhao, Yingchun Chen, Longjun Zhang, Gareth J. Bennett

Get full text

Investigation and Development of a Three-Dimensional Transmission Tower-Line System Model Using Nonlinear Truss and Elastic Catenary Elements for Wind Loading Dynamic Simulation by Xiao Zhu, Ge Ou

“…The application of the open-source package transmission tower-line model on extreme wind speed considering the aerodynamic damping is further implemented.…”
Get full text

The Centrifugal Differential Mobility Analyser – concept and initial validation of a new device for measuring 2D property distributions by T. N. Rüther, D. B. Rasche, D. B. Rasche, H.-J. Schmid

“…An evaluation method to determine the transfer probabilities is developed and used in this work to compare the measurement results with the theory for the pure rotational behaviour (like the Aerodynamic Aerosol Classifier) and the pure electrical behaviour (like the Dynamic Mobility Analyser). …”
Get full text

Parameter Adaptive Terminal Sliding Mode Control of Flexible Coupling Air-Breathing Hypersonic Vehicle by Haibing Chen, Wei Lin, Tielin Ma, Hengxian Jin, Cheng Xu

“…A strong coupling model of the same vehicle, considering aerodynamic-scramjet engine-flight dynamic-elastic couplings, is established as the verification platform of the designed control law. …”
Get full text

Comparative analysis and manufacturing of airfoil structures suitable for use at low speeds by Sinan Fidan, Satılmış Ürgün, Mert Gökdemir

“…An aerodynamic technique to calculating lift and drag coefficients is one of the required instruments in the wing design process. …”
Get full text

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. …”
Get full text

Model-Based Optimization of Velocity Strategy for Lightweight Electric Racing Cars by Mirosław Targosz, Wojciech Skarka, Piotr Przystałka

“…The vehicle model itself includes vehicle dynamic model, numerical model describing issues concerning resistance of rolling tire, resistance of the propulsion system, aerodynamic phenomena, model of the electric motor, and control system. …”
Get full text

Use of Portable Air Purification Systems to Eliminate Aerosol Particles from Patient Rooms by Dominic Dellweg, Gerhard Scheuch, Thomas Voshaar, Dieter Köhler

“…Radioactive particles with a mass median aerodynamic diameter of 0.6 ± 0.4 µm were nebulized from the head position of a simulated patient inside a 38 m3 measuring room. …”
Get full text

Experimental Investigation on Flow Characteristics of a Reverse-Flow Combustor by Ge Hu, Jianzhong Li, Wu Jin, Jingzhou Zhang, Li Yuan, Weikuo Zhai

“…An experimental investigation was carried out to research the flow field characteristics of a reverse-flow combustor in this paper. Different aerodynamic conditions were studied using PIV to reveal the characteristics of both the nonreacting and reacting flow fields. …”
Get full text

Structural Dynamics Analysis and Optimization of an Oil-Free Piston Air Compressor Based on Vibration and Noise Characteristics by Xiaoqing Sun, Yi Shen, Lai Yang, Huafang Liang

“…Firstly, we conduct noise experiment testing, identify the frequency band of aerodynamic noise using a coherence analysis method, and design orthogonal experiments to further optimize pipeline noise. …”
Get full text

Numerical Analysis of a Small Pneumatic Hammer Performance Based on Evaluation Method of Friction Force by Un Hyok Yang, Tok Hyong Han, Un Chol Han, Il Gwang Tae, Ryo Myong Hong, Song Chol Kim

“…We could find from the experimental result that the friction force was about 0.8 N under the horizontal installation when there was no pressure supply, but it increased significantly, was 20 times greater than that without pressure supply, due to aerodynamic action by compressed air leaked from the annular gaps between the cylindrical matching surfaces of the components. …”
Get full text

Treatment Efficacy of Electromyography versus Fiberscopy-Guided Botulinum Toxin Injection in Adductor Spasmodic Dysphonia Patients: A Prospective Comparative Study by Jae Wook Kim, Jae Hong Park, Ki Nam Park, Seung Won Lee

“…We assessed acoustic and aerodynamic voice parameters, and the voice handicap index (VHI) before injection and at 1, 3, and 6 months after injection. …”
Get full text

Geometrical Nonlinear Aeroelastic Stability Analysis of a Composite High-Aspect-Ratio Wing by Chang Chuan Xie, Jia Zhen Leng, Chao Yang

“…Planar doublet lattice method is used to calculate unsteady aerodynamics in frequency domain ignoring the bending effect of the deflected wing. …”
Get full text

Axial Spacing Effects on Rotor-Rotor Interaction Noise and Vibration in a Contra-Rotating Fan by Hengxuan Luan, Liyuan Weng, Ranhui Liu, Dongmin Li, Mingwei Wang

“…It is found that the axial spacing has great influence of aerodynamic noise. The mean value of sound pressure level decreases by 17.2 dB in total when the axial spacing increased to 1.1 chord from 0.3 chord. …”
Get full text

Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM by Chao An, Chao Yang, Changchuan Xie, Yang Meng

“…Nonlinear structure reduced order model (ROM) and nonplanar double-lattice method (DLM) are used for structural and aerodynamic modeling. The structural modeling method presented herein describes stiffness nonlinearities in polynomial formulation. …”
Get full text

Multidimensional System Identification and Active Vibration Control of a Piezoelectric-Based Sting System Used in Wind Tunnel by Yi Yu, Xing Shen, Yun Huang

“…In wind tunnel tests, the cantilever sting is usually used to support aircraft models because of its simple structure and low aerodynamic interference. However, in some special conditions, big-amplitude and low-frequency vibration would occur easily on the model not only in the pitch direction but also in the yaw direction, resulting in inaccurate data and even damage of the supporting structure. …”
Get full text

Association between exposure to particulate matter and heart rate variability in vulnerable and susceptible individuals by Yong Whi Jeong, Hayon Michelle Choi, Youhyun Park, Yongjin Lee, Ji Ye Jung, Dae Ryong Kang

“…This study examines PM1.0 (aerodynamic diameters <1 μm), PM2.5 (≥1 μm and <2.5 μm), and PM10 (≥2.5 μm and <10 μm) effects on HRV in patients with environmental diseases as chronic disease groups and vulnerable populations as control groups. …”
Get full text

Optimization of Carrier-Based Dry Powder Inhaler Performance: A Review by Tanu Mehta, Saeed Najafian, Komalkumar Patel, Justin Lacombe, Bodhisattwa Chaudhuri

“…To reach the small airways of the deep lung, the active pharmaceutical ingredients (API) particles need to have an aerodynamic diameter of 1–5 μm to avoid impaction and particle sedimentation in the upper respiratory tract, and due to this small particle size, the powder becomes highly cohesive resulting in poor flow. …”
Get full text

Wind Tunnel Test on Local Wind Field around the Bridge Tower of a Truss Girder by Jingyu Zhang, Mingjin Zhang, Bing Huang, Yongle Li, Jiaxin Yu, Fanying Jiang

“…The aerodynamic performance of vehicles on a bridge deck depends on the local wind field, especially in a region near a bridge tower. …”
Get full text