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Journal articles on the topic 'Aerodynamics'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ološtiak, Martin. "To the relations between morphemic and word-formation structure of a word in Slovak." Journal of Linguistics/Jazykovedný casopis 70, no. 3 (2019): 545–72. http://dx.doi.org/10.2478/jazcas-2020-0004.

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AbstractThe paper focuses on relations between word-formation and morphemic structure of a Slovak word based on the material from Slovník koreňových morfém slovenčiny [Slovak Dictionary of Root Morphemes] (Sokolová et al., 2012). Particularly, manifestations of morphemic variation determined by word-formation poly-motivation are analysed. Poly-motivation arises from the re-grouping of the relations within a word-formation nest, where the mediated motivation can be understood as an alternative direct motivation, e.g. aerodynamika [noun, ‘aerodynamics’] → (aerodynamický [adjective, ‘related to a

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Tian, Hong-qi. "Review of research on high-speed railway aerodynamics in China." Transportation Safety and Environment 1, no. 1 (2019): 1–21. http://dx.doi.org/10.1093/tse/tdz014.

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Abstract High-speed railway aerodynamics is the key basic science for solving the bottleneck problem of high-speed railway development. This paper systematically summarizes the aerodynamic research relating to China’s high-speed railway network. Seven key research advances are comprehensively discussed, including train aerodynamic drag-reduction technology, train aerodynamic noise-reduction technology, train ventilation technology, train crossing aerodynamics, train/tunnel aerodynamics, train/climate environment aerodynamics, and train/human body aerodynamics. Seven types of railway aerodynami

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Philpot, M. G. "Future challenges for powerplant aerodynamic integration in combat aircraft." Aeronautical Journal 105, no. 1048 (2001): 335–43. http://dx.doi.org/10.1017/s0001924000012227.

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Abstract The operational requirements of modern combat aircraft demand complex engine intake and exhaust systems, capable of working efficiently over a very wide range of flight conditions and throttle settings. In addition to high aerodynamic efficiency and avoidance of high distortion levels at the engine face, these systems must also meet rigorous radar and infra-red signature targets. This paper discusses the implications from the aerodynamics point of view. Examples of technical approaches which seek to balance the sometimes conflicting requirements of aerodynamics and signatures are outl

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Ji, Rui, Yinting Shen, and Kai Sheng. "The recent progress and state-of-art applications of aerodynamics for vehicle." Highlights in Science, Engineering and Technology 13 (August 21, 2022): 75–81. http://dx.doi.org/10.54097/hset.v13i.1334.

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Transportation is an indispensable part of human beings’ daily life, thus plenty of scholars have focused on improving the energy efficiency of transportation. The application and development of aerodynamics is of paramount importance. In this article, the effects of three types of locomotives on aerodynamic performance of high-speed trains are investigated. In order to lucubrate this topic, the definition of aerodynamics by different scientists is firstly discussed and showed, they basically classify them by three different kinds of ways. Subsequently, the creation of aerodynamics, historical

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Hong, Sungchan, Takeshi Asai, and Byung Mook Weon. "Surface Patterns for Drag Modification in Volleyballs." Applied Sciences 9, no. 19 (2019): 4007. http://dx.doi.org/10.3390/app9194007.

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Surface patterns on objects are important in aerodynamics. We show how surface patterns on volleyballs modify their aerodynamic performances. Conventional volleyballs with six panels show different aerodynamic characteristics along transverse and diagonal directions. Interestingly, isotropic surface patterning with hexagons or dimples enables us to achieve isotropic aerodynamics. This result gives insight into surface-mediated flight controls of projectiles through resisting fluid media.

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Bielek, Boris, Daniel Szabó, Josip Klem, and Kristína Kaniková. "Application of physical theory of cavity in the construction of double skin facades." Curved and Layered Structures 9, no. 1 (2021): 40–53. http://dx.doi.org/10.1515/cls-2022-0004.

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Abstract The article deals with the issue of double skin transparent facades as a new technological-operational system of transparent exterior walls. Especially of high-rise buildings, which with its operating modes ingeniously uses a renewable source of solar energy to reduce the energy needs of the building. The basic precondition for the correct function of the double skin facade is its functional aerodynamics in any climatic conditions of the outdoor climate. In the critical state of windlessness, the aerodynamic quantification of a double skin facade is the total aerodynamic resistance of

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Wang, Junzhe. "Analysis of the Principle and Applications of Aerodynamics of High-speed Railway." Highlights in Science, Engineering and Technology 72 (December 15, 2023): 530–35. http://dx.doi.org/10.54097/ymwbxx75.

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With the advancement of science and technology, the railway has become an important breakthrough. Railroads can transport goods and carry people. Aerodynamics has a huge connection to the study of the high-speed railways. On this basis, the subject of this paper is the principle and application analysis of high-speed railway aerodynamics. To be specific, this study introduces the formulas and principles related to aerodynamics, and how some formulae are used in high-speed railways. The research searches for literature related to railway and aerodynamics and finds the current development status

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Ni, Runzhou. "Research on the application of aerodynamic in cycling." Theoretical and Natural Science 12, no. 1 (2023): 227–32. http://dx.doi.org/10.54254/2753-8818/12/20230478.

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As a bicycle moves, the rider feels air resistance, which affects speed and the rider's energy expenditure. In cycling races, where the main focus is on increasing speed, modifications to the design of the bike, optimization of the bike's materials, and adjustments to the riding position are often utilized to increase speed and reduce energy expenditure. These optimizations are based on aerodynamic principles, which is one of the practical applications of aerodynamic developments. Therefore, the influence of aerodynamics is becoming more and more important in today's bicycle racing. In this pa

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Zhao, Xinxin, Jinguang Shi, Huajie Ren, and Zhongyuan Wang. "Nonlinear Model and Ballistic Impact of Body Aerodynamics for Canard Dual-Spin Aircraft." Aerospace 12, no. 6 (2025): 558. https://doi.org/10.3390/aerospace12060558.

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Targeting the nonlinear issues of the canard dual-spin aircraft, which relies on the high-speed rotation of the afterbody for flight stability and achieves trajectory correction by adjusting the roll angle of the low-speed rotating forebody to alter aerodynamics, the establishment of an accurate aerodynamic model is crucial for in-depth studies of its ballistic characteristics and design. For this, by taking the effects of canard–body interference, fore/aft body reversal, and other factors into account, an accurate model of the body aerodynamics applicable to large angles of attack is presente

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Chen, Zhao Jun. "Application of Aerodynamics in the Automotive Repair." Applied Mechanics and Materials 556-562 (May 2014): 991–95. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.991.

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In the development process of the car, the aerodynamics has a strong impact on the automotive research and design. The initial research of aerodynamics focused on reducing air resistance and improving the car's fuel efficiency. Aerodynamic lift and side forces generated has a significant effect on the stability of cars, and even a threat to the safe driving. With the rapid development of automotive performance, the comfort and security of cars have put forward new and higher requirements, wind noise and airflow pollution generated by the aerodynamics have also emerged. How to reduce the advers

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Žilinský, Juraj, and Milan Vanc. "Applied Aerodynamics in Building." Advanced Materials Research 855 (December 2013): 164–67. http://dx.doi.org/10.4028/www.scientific.net/amr.855.164.

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Development of new materials, high strength concrete, steels, composites, new construction techniques and procedures put the Development of new materials, high strength concrete, steels, composites, new construction techniques and procedures put the foundations of a new generation of buildings. With the advent of advanced computer technology, using the finite element method engineers and architects plan and construct buildings that are, high, flexible, thin and lightweight. These buildings, however, are burdened by aerodynamic forces, whose source is wind. Just the action of aerodynamic forces

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Toet, W. "Aerodynamics and aerodynamic research in Formula 1." Aeronautical Journal 117, no. 1187 (2013): 1–26. http://dx.doi.org/10.1017/s0001924000007739.

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AbstractThis paper will address the engineering performance differentiators for an F1 car and highlight the difference aerodynamics can make to that performance. It will also consider some basic aerodynamic challenges and the main tools used for aerodynamic exploration by teams.

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Zhang, Jing, Wenwen Kang, and Lingyu Yang. "Aerodynamic benefits of boundary layer ingestion for distributed propulsion configuration." Aircraft Engineering and Aerospace Technology 91, no. 10 (2019): 1285–94. http://dx.doi.org/10.1108/aeat-06-2018-0174.

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Purpose Boundary layer ingestion (BLI) is one of the probable noteworthy features of distributed propulsion configuration (DPC). Because of BLI, strong coupling effects are generated between the aerodynamics and propulsion system of aircraft, leading to the specific lift and drag aerodynamic characteristics. This paper aims to propose a model-based comprehensive analysis method to investigate this unique aerodynamic. Design/methodology/approach To investigate this unique aerodynamics, a model-based comprehensive analysis method is proposed. This method uses a detailed mathematical model of the

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Xie, Meng, and Xiaoyan Liu. "The influence and application of nonlinear aerodynamics on static derivatives in transonic regime." Journal of Physics: Conference Series 2512, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1742-6596/2512/1/012007.

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Abstract This paper details two static aeroelastic analysis methods applied to a passenger aircraft model with high aspect ratio wing. The influence of nonlinear aerodynamic force on static aeroelastic derivatives in the transonic regime is analysed. The traditional aerodynamic influence coefficient (AIC) matrix method can produce fast and reliable aerodynamic force and is widely used in aeroelastic analysis. However, the AIC matrix computed by linear aerodynamics will lead to some errors in transonic regime because of the nonlinear effect of aerodynamics. By generating the correction matrices

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Liu, Jun, Zhengqi Gu, Taiming Huang, Shuya Li, Ledian Zheng, and Kai Sun. "Coupled analysis of the unsteady aerodynamics and multi-body dynamics of a small car overtaking a coach." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, no. 14 (2019): 3684–99. http://dx.doi.org/10.1177/0954407019831559.

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The severe additional aerodynamic loads that are generated on a small car when overtaking a coach have an adverse effect on the car handling stability and its safety. In this article, a two-way coupling of the unsteady aerodynamics and multi-body dynamics is performed in order to study the mutual interactions of a car in an overtaking maneuver with a coach. The unsteady aerodynamic interactions are obtained by using SST (Menter) K-Omega Detached Eddy Simulation and overset mesh technology. The aerodynamics couple the multi-body dynamics, taking into account the effects of the transverse spacin

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Shinde, Yash. "Dimples Effects on a Spoilers Aerodynamics." International Journal for Research in Applied Science and Engineering Technology 9, no. 8 (2021): 1851–68. http://dx.doi.org/10.22214/ijraset.2021.37674.

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Abstract: Over the evolution of automobiles, performance, mileage, and grip have dramatically improved. Nevertheless, there have been some improvements, but now the ideal design has been reached for design of engine, airflow & tires, & ergonomics. This means that even very small design improvements could result in high performance enhancements. As fuel is becoming more expensive, the need for improved aerodynamics is becoming more acute. Thus, the purpose of this paper is to examine the effect of golf-like dimples on the aerodynamic properties of a spoiler. As such, numerical calculati

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Tomasz Lusiak, Andrej Novak, Martin Bugaj, and Radovan Madlenak. "Assessment of Impact of Aerodynamic Loads on the Stability and Control of the Gyrocopter Model." Communications - Scientific letters of the University of Zilina 22, no. 4 (2020): 63–69. http://dx.doi.org/10.26552/com.c.2020.4.63-69.

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Aerodynamic modelling currently relates to development of mathematical models to describe the aerodynamic forces and moments acting on the aircraft. It is a challenging part of aerodynamics that defines a comprehensive approach to using traditional methods and modern techniques to obtain relevant data. The most complicated task for the aerodynamics and flight dynamics is definition, computation and quantification of the aerodynamic description of an object. This paper presents how to determine the aerodynamic load on a gyrocopter and defines the effect on its stability and control. The first s

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Kamruzzaman, Md, Sushil Nepal, and Mushfiq Al Arafa. "Aerodynamic Analysis of Micro Aerial Vehicle Rotor Blade at Low Reynolds Number." Asian Journal of Engineering and Applied Technology 10, no. 2 (2021): 1–10. http://dx.doi.org/10.51983/ajeat-2021.10.2.2953.

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The numerical simulation of micro aerial vehicle (MAV) rotor blade aerodynamics is highly challenging in the field of rotor aerodynamics. The aim of this paper is to present a computational fluid dynamics (CFD) study on the aerodynamics analysis of micro aerial vehicle rotor blade at low-Reynolds number by means of Spalart-Allmaras turbulence model. The KA152313 airfoil, which is dedicated to mid to small-scale rotorcraft, e.g. MAV is chosen to design the rotor blade. The rotor blade was investigated in three different pitch configurations, which are GP13º, GP12º and GP11º and the aerodynamics

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Wenhui, Yan, and Zhang Kun. "Effects of Stage Spacing on Contra-Rotating Propeller Aerodynamic Interactions." Journal of Physics: Conference Series 2478, no. 12 (2023): 122013. http://dx.doi.org/10.1088/1742-6596/2478/12/122013.

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Abstract To identify the law of aerodynamic interactions of contra-rotating propellers (CRPs) and improve their aerodynamics, this study investigates the aerodynamic interactions of 4 CRPs (six blades in front and six in back) with different stage spacings using the Reynolds-averaged Navier-Stokes (RANS) equations-based method. The results showed that the CRP whose stage spacing was 0.25 times the propeller diameter delivered the highest average efficiency and that the aerodynamic interactions between the front and rear propellers decreased as the spacing widened, and compared with the rear pr

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Wang, Jianfeng, Hao Li, Yiqun Liu, Tao Liu, and Haibo Gao. "Aerodynamic research of a racing car based on wind tunnel test and computational fluid dynamics." MATEC Web of Conferences 153 (2018): 04011. http://dx.doi.org/10.1051/matecconf/201815304011.

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Wind tunnel test and computational fluid dynamics (CFD) simulation are two main methods for the study of automotive aerodynamics. CFD simulation software solves the results in calculation by using the basic theory of aerodynamic. Calculation will inevitably lead to bias, and the wind tunnel test can effectively simulate the real driving condition, which is the most effective aerodynamics research method. This paper researches the aerodynamic characteristics of the wing of a racing car. Aerodynamic model of a racing car is established. Wind tunnel test is carried out and compared with the simul

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Kafkas, Angelos, and George Lampeas. "Static Aeroelasticity Using High Fidelity Aerodynamics in a Staggered Coupled and ROM Scheme." Aerospace 7, no. 11 (2020): 164. http://dx.doi.org/10.3390/aerospace7110164.

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Current technology in evaluating the aeroelastic behavior of aerospace structures is based on the staggered coupling between structural and low fidelity linearized aerodynamic solvers, which has inherent limitations, although tried and trusted outside the transonic region. These limitations arise from the assumptions in the formulation of linearized aerodynamics and the lower fidelity in the description of the flowfield surrounding the structure. The validity of low fidelity aerodynamics also degrades fast with the deviation from a typical aerodynamic shape due to the inclusion of various cont

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Anil, Mary, and Deepa Varkey. "Recent Progress in Aerodynamics for Aeroelastic Analysis." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (2022): 2890–93. http://dx.doi.org/10.22214/ijraset.2022.44475.

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Abstract: Aerodynamics has gained considerable popularity in the aerospace industry. Based on the characteristics of a structure, aerodynamic behavior varies from structure to structure. A reliable aeroelastic analysis requires accurate capture of aerodynamic forces. To produce accurate aerodynamic loads, it is necessary to develop an appropriate aerodynamic model. A review of various approaches to aerodynamic modeling for aeroelastic analysis of diverse wing configurations is presented in this paper. The study covers a wide range of finite element software platforms used in the aeroelastic an

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Hong, Sungchan, John Eric Goff, and Takeshi Asai. "Effect of a soccer ball’s surface texture on its aerodynamics and trajectory." Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology 233, no. 1 (2018): 67–74. http://dx.doi.org/10.1177/1754337118794561.

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The effect of a soccer ball’s surface texture on its aerodynamics and flight trajectory is not definitively known. For this study, five soccer balls were used, each having 32 panels with different surface textures. Their aerodynamics were examined via wind-tunnel experiments and then several non-spin trajectories were calculated for each ball. The results showed that the aerodynamic forces acting on a soccer ball change significantly depending on the surface texture of the ball, which in turn influences flight trajectories. The study contributes to an understanding of how a soccer ball’s surfa

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Chen, Senlin, and Zhenghong Gao. "Unsteady aerodynamics modeling using Volterra series expansed by basis function." MATEC Web of Conferences 198 (2018): 03002. http://dx.doi.org/10.1051/matecconf/201819803002.

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Unsteady aerodynamics modeling must accurately describe nonlinear aerodynamic characteristics in addition to unsteady aerodynamic characteristics. The Volterra series has attracted increasing attention as a powerful tool for nonlinear system modeling. It is essential to incorporate the influence of the second-order Volterra kernel or higher-order kernels to build a nonlinear unsteady aerodynamics model. The main difficulty in the identification of higher-order kernels is that the number of parameters to be identified increases exponentially with the order of a kernel. This paper expands the Vo

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ABUMERE, AKHANOLU, and EIZIELEN AHIANBA JOSEPH. "THE RELEVANCE OF AERODYNAMICS IN ARCHITECTURE." FAR Journal of Arts, Humanities and Social Studies (FARJAHSS) 2, no. 3 (2025): 16–17. https://doi.org/10.5281/zenodo.15480265.

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Aerodynamics plays a crucial role in shaping the architectural design, improving and influencing the performance, sustainability and functionality of buildings and structures. By understanding air-flow patterns, wind loads and pressure distribution around structures, architects and structural engineers can create buildings that are not only aesthetically-pleasing but also functional, efficient and resilient. The relevance of aerodynamics in architecture is multifaceted. It deals with the design of building shapes, orientations and layouts to minimize wind-induced loads, reduce energy consumpti

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Eskandary, Keivan, Morteza Dardel, Mohammad Hadi Pashaei, and Abdol Majid Kani. "Effects of Aeroelastic Nonlinearity on Flutter and Limit Cycle Oscillations of High-Aspect-Ratio Wings." Applied Mechanics and Materials 110-116 (October 2011): 4297–306. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.4297.

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In this study aeroelastic characteristics of long high aspect ratio wing models with structural nonlinearities in quasi-steady aerodynamics flows are investigated. The studied wing model is a cantilever wing with double bending and torsional vibrations and with large deflection ability in according to Dowell-Hodges wing model. This wing model is valid for long, straight and thin homogeneous isotropic beams. Aerodynamics model is based on quasi-steady aerodynamic which is valid for aerodynamic flows in low velocity and without wake, viscosity and compressibility effects. The effect of different

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Unitsky, Anatoli E., Sergey V. Artyushevsky, Vladimir V. Goncharov, and Michael I. Tsyrlin. "Aerodynamic optimization of high-speed unimobile of string transport by Unitsky." Innotrans, no. 3 (2022): 3–11. http://dx.doi.org/10.20291/2311-164x-2022-3-3-11.

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The paper describes technical solutions aimed at improving the aerodynamics of vehicles; the engineering specifics of high-speed models of the vehicles of the string transport by Unitsky (uST), their advantages in aerodynamics and ergonomics are presented; the design of unimobile (steel wheeled electric rail car) is proposed, which ensures the configuration of the wheeled vehicle of uST with advanced aerodynamic characteristics and having improved dynamic stability; the methods of analysis of optimal dimensions of the main elements of the unimobile are indicated. The presented data were proven

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MATSUMOTO, M., N. SHIRAISHI, M. KITAZAWA, et al. "Aerodynamic Behavior of Inclined Circular Cylinders-Cable Aerodynamics." Wind Engineers, JAWE 1988, no. 37 (1988): 103–12. http://dx.doi.org/10.5359/jawe.1988.37_103.

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Matsumoto, M., N. Shiraishi, M. Kitazawa, et al. "Aerodynamic behavior of inclined circular cylinders-cable aerodynamics." Journal of Wind Engineering and Industrial Aerodynamics 33, no. 1-2 (1990): 63–72. http://dx.doi.org/10.1016/0167-6105(90)90021-4.

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Xiang, Jinwu, Kai Liu, Daochun Li, Chunxiao Cheng, and Enlai Sha. "Unsteady aerodynamic characteristics of a morphing wing." Aircraft Engineering and Aerospace Technology 91, no. 1 (2018): 1–9. http://dx.doi.org/10.1108/aeat-04-2017-0101.

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Purpose The purpose of this paper is to investigate the unsteady aerodynamic characteristics in the deflection process of a morphing wing with flexible trailing edge, which is based on time-accurate solutions. The dynamic effect of deflection process on the aerodynamics of morphing wing was studied. Design/methodology/approach The computational fluid dynamic method and dynamic mesh combined with user-defined functions were used to simulate the continuous morphing of the flexible trailing edge. The steady aerodynamic characteristics of the morphing deflection and the conventional deflection wer

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Wang, Xu, Yuanhao Qian, Zengshun Chen, Xiao Zhou, Huaqiang Li, and Hailin Huang. "Numerical studies on aerodynamics of high-speed railway train subjected to strong crosswind." Advances in Mechanical Engineering 11, no. 11 (2019): 168781401988727. http://dx.doi.org/10.1177/1687814019887270.

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Under the action of strong crosswind, the aerodynamic behavior of a rail vehicle at high speed will be changed significantly, which could directly affect the safe operation of the vehicle. With the help of the shape of train used in China, the aerodynamic characteristics of trains with scale of 1:1 is investigated using computational fluid dynamics numerical simulation method, which consists of the variation of aerodynamics force and moment with wind yaw angle, wind speed, train speed, and nose shape. After an initial validation against Baker’s results from wind tunnel test, the numerical mode

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Poddaeva, Olga Igorevna, and Ilya Vladimirovich Dunichkin. "ARCHITECTURAL-BUILDING AERODYNAMICS." Vestnik MGSU, no. 6 (June 2017): 602–9. http://dx.doi.org/10.22227/1997-0935.2017.6.602-609.

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This article gives a brief historical digression about the formation of architectural and building aerodynamics as a separate branch of the construction science. The main methods and approaches to the solution of problems of architectural and building aerodynamics are listed; the classification of problems of aerodynamics of structural steel according to the studied objects is given; main peculiarities of the research in selected areas are briefly indicated. The aim of the work is to systematize existing approaches to assessing wind impact on structural steel taking into account some modern in

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Guerrero, Alex, and Robert Castilla. "Aerodynamic Study of the Wake Effects on a Formula 1 Car." Energies 13, no. 19 (2020): 5183. http://dx.doi.org/10.3390/en13195183.

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The high complexity of current Formula One aerodynamics has raised the question of whether an urgent modification in the existing aerodynamic package is required. The present study is based on the evaluation and quantification of the aerodynamic performance on a 2017 spec. adapted Formula 1 car (the latest major aerodynamic update) by means of Computational Fluid Dynamics (CFD) analysis in order to argue whether the 2022 changes in the regulations are justified in terms of aerodynamic necessities. Both free stream and flow disturbance (wake effects) conditions are evaluated in order to study a

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Fakhruddin, Muhammad, Hangga Wicaksono, Fauzan Baananto, et al. "OPTIMASI AERODINAMIKA BODI MOBIL HEMAT ENERGI KEN DEDES ELECTRIC EVO 3 MENGGUNAKAN METODE COMPUTATIONAL FLUID DYNAMICS (CFD)." Eksergi 17, no. 1 (2021): 36. http://dx.doi.org/10.32497/eksergi.v17i1.2219.

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Aerodynamics is a branch of science that discusses the movement of an object in the air. Aerodynamics comes from the words aero = air and dynamics = force of motion. The study of air forces is a branch of fluid mechanics. This study is a continuation of the study of hydrodynamics, where the science of the motion of air has a close relationship with other sciences. Physics, mathematics, mechanics, meteorology and others are branches of science that are closely related to aerodynamics. Where in the science of aerodynamics, it discusses the principle of stationary air, specifically about the chan

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Cicolani, L. S., J. G. A. da Silva, E. P. N. Duque, and M. B. Tischler. "Unsteady aerodynamic model of a cargo container for slung-load simulation." Aeronautical Journal 108, no. 1085 (2004): 357–68. http://dx.doi.org/10.1017/s0001924000005170.

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Abstract The problem of simulation models capable of predicting the aerodynamic instability of helicopter slung-load cargo containers and bluff bodies is addressed. Instability for these loads is known to depend on unsteady frequency-dependent aerodynamics, but simulation models that include the unsteady aerodynamics do not currently exist. This paper presents a method for generating such models using computational fluid dynamics (CFD) to generate forced-oscillation aerodynamic data and frequency domain system identification techniques to generate a frequency response from the CFD data and to

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He, Fushan, Xingsheng Zheng, Weilin Luo, et al. "Collaborative Optimization of Aerodynamics and Wind Turbine Blades." Applied Sciences 15, no. 2 (2025): 834. https://doi.org/10.3390/app15020834.

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This paper explores the application of multidisciplinary design optimization to the blades in horizontal-axis wind turbines. The aerodynamics and structural performance of blades are considered in the optimization framework. In the aerodynamic discipline, class function/shape function transformation-based parameterized modeling is used to express the airfoil. The Wilson method is employed to obtain the aerodynamic shape of the blade. Computational fluid dynamics numerical simulation is performed to analyze the aerodynamics of the blade. In the structural discipline, the materials and ply lay-u

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Lv, Shi Liang, Ya Sheng Jin, and Xin Rui Chen. "Speech Aerodynamics Parameter Extraction Platform." Applied Mechanics and Materials 568-570 (June 2014): 238–42. http://dx.doi.org/10.4028/www.scientific.net/amm.568-570.238.

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The speech aerodynamics signal is one of the most important physiological signal in language research, plays an important role in human phonation process. Recently, there are a lot of equipment for speech aerodynamics signal research, mainly used in the field of medical research. But the supporting software can't satisfy the need of phonetics research. In this paper, according to the need of phonetics research, through the analysis of signal to KAYPENTAX speech aerodynamic devices, and used the MATLAB programming to establish the analysis platform to extracting parameters. The platform can rea

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ILIE, Marcel, and Augustin Semenescu. "COMPUTATIONAL STUDIES OF HELICOPTER AERODYNAMICS." Annals of the Academy of Romanian Scientists Series on Engineering Sciences 15, no. 1 (2023): 54–64. http://dx.doi.org/10.56082/annalsarscieng.2023.1.54.

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The present research concerns the helicopter aerodynamics and the blade-vortex interaction phenomenon. The computational studies are carried out using the large-eddy simulation approach for subsonic incompressible flow of Reynolds number Re=1.3x106. The helicopter aerodynamics is dominated by the blade-vortex interaction (BVI) phenomenon which is responsible for noise and vibrations. During the helicopter flight, a tip-vortex filament is formed and its interaction with the advancing blade causes the blade-vortex interaction phenomenon. The study shows that the blade-vortex interaction causes o

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Rituraj, Malvade, Patil Jay, Patel Harsh, and Gurav Shubhangi. "Review of Fluid Analysis and Modifications in F-1 Cars." International Journal of Innovative Science and Research Technology 7, no. 3 (2022): 1354–58. https://doi.org/10.5281/zenodo.6480703.

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- This work is about the comparison of the previous and the following aerodynamic design considerations for Formula 1 cars. FIA, the governing body of motorsport, introduced new vehicle design for the next era considering better racing and safety measures for the drivers. The new regulations have major changes in design approach of the front and rear wings and the body which dictate the aerodynamics of the car. Aerodynamics plays an important role in achieving the speed desired by the driver as well as it is also responsible to keep the cars glued to the road. In this paper, a review of the an

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Chung, Wei-Li, Kuo-Cheng Liu, Hsiu-Feng Chuang, et al. "Aerodynamic Performance and Neuromuscular Control in Patients with Unilateral Vocal Fold Paralysis." Diagnostics 12, no. 12 (2022): 3124. http://dx.doi.org/10.3390/diagnostics12123124.

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Unilateral vocal fold paralysis (UVFP) causes glottal incompetence and poor vocal efficiency. The influence of laryngeal neuromuscular control on aerodynamics in UVFP remains unclear. This study investigated the relationship between laryngeal muscle activities using quantitative laryngeal electromyography (LEMG) and aerodynamics in UVFP. This prospective study recruited patients with UVFP, and the diagnosis was confirmed with videolaryngostroboscopy and LEMG. The patient received aerodynamic assessment and LEMG of the thyroarytenoid-lateral cricoarytenoid (TA-LCA) muscle complex and the cricot

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Capece, V. R., and S. Fleeter. "Experimental Investigation of Multistage Interaction Gust Aerodynamics." Journal of Turbomachinery 111, no. 4 (1989): 409–17. http://dx.doi.org/10.1115/1.3262288.

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The fundamental flow physics of multistage blade row interactions are experimentally investigated at realistic reduced frequency values. Unique data are obtained that describe the fundamental unsteady aerodynamic interaction phenomena on the stator vanes of a three-stage axial flow research compressor. In these experiments, the effect on vane row unsteady aerodynamics of the following are investigated and quantified: (1) steady vane aerodynamic loading; (2) aerodynamic forcing function waveform, including both the chordwise and transverse gust components; (3) solidity; (4) potential interactio

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Qi, Xiaojing, Yuxin Ou, Hance Zhang, and Da Wang. "Efficiency Enhancement Design Approach in the Side Wing of a FSAE Car Utilizing a Shutter-Like Fairing Structure." Applied Sciences 12, no. 13 (2022): 6552. http://dx.doi.org/10.3390/app12136552.

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Aerodynamical design is one of the critical technologies in race car engineering, and favorable race car aerodynamics is supposed to provide sufficient negative lift force and keep the center of pressure in the vicinity of center of mass. Taking the Formula Society of Automotive Engineers (FSAE) cars as an example, side wing structure is frequently adopted for better grip in the mid-back of short wheelbase, open wheel race cars. This research designs a shutter-like fairing structure and utilizes it to weaken the vorticity and reinforce the pressure of side wing flow field. The sensitivity of s

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Musa, Mohamad Nor, Samion Syahrullail, and Fairuz Zainal Abidin. "Aerodynamic Analysis on Proton Preve by Experimental." Applied Mechanics and Materials 773-774 (July 2015): 575–79. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.575.

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The purpose of this study is to determine the coefficient drag, CD of the Proton PREVẾ by experimental method using Low Speed Wind Tunnel. All the relevant data are collected through the literature reviews from books and journals. First, the basic thing in aerodynamic is studied. There are two things are concern when studies aerodynamics. They were air flow and vehicle shape which we regard as aerodynamics factor that determine aerodynamic of the vehicle. Fundamental of air flow and vehicle shape is reviewed includes the relationship between air speed with pressure, boundary layer, Reynolds

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Deng, Yong Quan, Tian Li, Yi Sheng Zou, Ji Ye Zhang, and Wei Hua Zhang. "Equilibrium Characteristics of High-Speed Train in Crosswind." Applied Mechanics and Materials 275-277 (January 2013): 532–36. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.532.

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A fast approach to high-speed train co-simulation between aerodynamics and train-track coupling dynamics is presented. With this method, the fluid-structure dynamic performances of a high-speed train are simulated with different crosswind velocity and train velocity. The aerodynamic forces and train dynamics are compared under off-line simulation and equilibrium state method. Considering the fluid-structure interaction, there is significant influence on the head aerodynamics and train dynamics. The results show that it is necessary to consider changing attitude in crosswind

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Chen, Jian Zhong, and Pei Qing Liu. "Test Technique Research for the Hinge Moment of a Grid Fin in High Speed Wind Tunnel." Applied Mechanics and Materials 574 (July 2014): 480–84. http://dx.doi.org/10.4028/www.scientific.net/amm.574.480.

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In order to study the test technique for the hinge moment of a grid fin in wind tunnel, a platform based on half model support technique was established in FL-23 and FL-31 wind tunnel in China Aerodynamics Research & Development Center (CARDC). The platform developed a wind tunnel test balance, rudder control system and the aerodynamics measurement system. This test technique was important to optimize aerodynamic configurations of a grid fin, design or evaluate the capability of the rudder control system. Nomenclature

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Kinanti, Kidung, and M. Rais Abdillah. "Influences of geomorphological and surface aerodynamic factors on the relationship between maximum and average wind speed in Indonesia." IOP Conference Series: Earth and Environmental Science 1472, no. 1 (2025): 012004. https://doi.org/10.1088/1755-1315/1472/1/012004.

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Abstract The relationship between maximum wind speed and average wind speed is not linear and might be influenced by many factors. Past studies showed that the relationship can be affected by several geomorphology and surface aerodynamic factors. This study aims to reveal whether the geomorphology and surface aerodynamics factors have significant influences on the relationship between maximum and average wind speed in Indonesia. Daily maximum and average wind speed data over 2016-2022 from 56 Automatic Weather Stations (AWS) were utilized to obtain combined distribution patterns. The combined

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Wu, Jiarong, and Yiding Wen. "Methods on Adjusting Vehicle’s Shape to Control Air Resistance." Highlights in Science, Engineering and Technology 13 (August 21, 2022): 14–20. http://dx.doi.org/10.54097/hset.v13i.1310.

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Wind resistance is usually expressed by the following formula. Fx＝ CdAρv^2 /2. Where Cd is a constant. And A is the contact area between air and car. ρ is air density. v is the velocity. Because of the complex structure, mostly a very specific and accurate model cannot be obtained directly. Instead, engineers will use wind tunnel test to get a practical drag coefficient of a car. In the actual analysis, the influence of wind resistance cannot be ignored in the car dynamic system. Wind resistance is the main factor to counteract traction in the process of high-speed driving. Knowledge and liter

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Jahn, Ingo, and Peter Jacobs. "Using Meridional Streamline and Passage Shapes to Generate Radial Turbomachinery Geometry and Meshes." Applied Mechanics and Materials 846 (July 2016): 1–6. http://dx.doi.org/10.4028/www.scientific.net/amm.846.1.

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An important aspect for structural and aerodynamics design of radial flow turbomachinery is the definition of the geometry and the generation of meshes for computational analysis. Particularly in the area of computational design and optimization, the way the geometry is defined is important, as it can limit design space. Traditionally, radial compressors and radial turbine rotors are defined using a mechanical design approach. Effectively a hub and shroud profile, followed by a rotorblade geometry are defined and the shape is adjusted in order to meet certain aerodynamic boundary conditions. T

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Shen, Xin, Ping Hu, Jinge Chen, Xiaocheng Zhu, and Zhaohui Du. "The unsteady aerodynamics of floating wind turbine under platform pitch motion." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 232, no. 8 (2018): 1019–36. http://dx.doi.org/10.1177/0957650918766606.

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The aerodynamic performance of floating platform wind turbines is much more complex than fixed-base wind turbines because of the flexibility of the floating platform. Due to the extra six degrees-of-freedom of the floating platform, the inflow of the wind turbine rotors is highly influenced by the motions of the floating platform. It is therefore of interest to study the unsteady aerodynamics of the wind turbine rotors involved with the interaction of the floating platform induced motions. In the present work, a lifting surface method with a free wake model is developed for analysis of the uns

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Wiński, Krzysztof, and Adam Piechna. "Comprehensive CFD Aerodynamic Simulation of a Sport Motorcycle." Energies 15, no. 16 (2022): 5920. http://dx.doi.org/10.3390/en15165920.

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Nowadays, aerodynamics is a key focal point in the vehicle design process. Beyond its direct impact on the performance of a vehicle, it also has significant effects on economics and safety. In the last decade numerical methods, mainly Computational Fluid Dynamics (CFD), have established themselves as a reliable tool that assists in the design process and complements classical tunnel tests. However, questions remain about the possible obtained accuracy, best practices and applied turbulence models. In this paper, we present a comprehensive study of motorcycle aerodynamics using CFD methods whic

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