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Relevant bibliographies by topics / High lift devices / Dissertations / Theses

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Dissertations / Theses on the topic 'High lift devices'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ammoo, Mohd Shariff. "Development of a design methodology for transport aircraft variable camber flaps suitable for cruise and low-speed operations." Thesis, Cranfield University, 2003. http://dspace.lib.cranfield.ac.uk/handle/1826/11062.

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This thesis describes the development of a generic design methodology for variable camber flap systems for transport aircraft, intended to be used for cruise and low-speed operations. The methodology was structured after several revisions were performed on conventional high-lift device design methodologies for existing transport aircraft. The definition and detail explanations are given at every phase of the methodology. A case study was performed in order to give an example of the implementation of the methodology where a transport aircraft called A TRA, a design study from previous PhD repor

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2

Chappell, S. "Active control with dielectric barrier discharge actuators applied to high-lift devices." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/359742/.

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An experimental investigation examined the capability of dielectric barrier discharge (DBD) actuators to control a high-lift device system. Aerodynamic tests investigated the potential of utilising the actuator to control the flap side-edge vortex flow field. Acoustic tests examined the attenuation of slat noise with a DBD actuator. The sparse knowledge related to the control of a vortex flow field with a DBD actuator necessitated a more fundamental study that used a NACA 0015 wing. From this study, it was shown that the application of control resulted in a more diffused tip vortex. The actuat

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3

Munro, Scott Edward. "Jet noise of high aspect-ratio rectangular nozzles with application to pneumatic high-lift devices." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/12128.

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4

Knepper, Angela Marie. "Examination of three candidate technologies for high-lift devices on an aircraft wing." Thesis, Cranfield University, 2005. http://hdl.handle.net/1826/1058.

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A research programme was initiated to examine three candidate high-lift technologies, which would, if implemented, simplify the mechanical complexity of the multiple component trailing-edge devices traditionally employed on civil transport aircraft. Experimental studies were undertaken with the aim of examining each technology in terms of its potential to favourably influence boundary layer development and improve the aerodynamic characteristics of a high-lift configuration. Preliminary studies of triangular serrated geometries, at the trailing edge of a modified flat plate, highlighted that t

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5

Atkins, D. W. "The CFD assisted design and experimental testing of a wing-sail with high lift devices." Thesis, University of Salford, 1996. http://usir.salford.ac.uk/14811/.

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A wingsail is a solid symmetrical aerofoil section which creates thrust in the same manner as a conventional sail. Wingsails may either be used as a sole power unit, e. g. for a yacht or catamaran, or as an auxiliary power unit on a larger craft, e. g. fishing vessels, cargo ships or passenger liners. To augment the thrust created by the wingsail, high lift devices are employed to increase both the maximum lift and the stall incidence of the aerofoil. A wingsail must be symmetrical and capable of creating an equal lift force with the flow approaching the leading edge from either side of the wi

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6

Guo, Chuanliang. "Effects of turbulence modelling on the analysis and optimisation of high-lift configurations." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/7220.

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Due to the significant effects on the performance and competitiveness of aircraft, high lift devices are of extreme importance in aircraft design. The flow physics of high lift devices is so complex, that traditional one pass and multi-pass design approaches can’t reach the most optimised concept and multi-objective design optimisation (MDO) methods are increasingly explored in relation to this design task. The accuracy of the optimisation, however, depends on the accuracy of the underlying Computational Fluid Dynamics (CFD) solver. The complexity of the flow around high-lift configuration, na

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7

Smith, Kyle. "CFD Investigation of Fluidic Momentum Injection as Alternative to Mechanical High Lift Devices for Boundary Layer Control." Thesis, KTH, Aerodynamik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-164292.

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Syftet med detta projekt i aerodynamik ar att prova en metod för kontroll av gränsskiktets beteende med luftinsprutning. En modern vingprofil vid transsonisk hastighet används, som liknar de som finns på de festa kommersiella flygplan. Koordinater för en experimentell vingprofil som tidigare har använts i vindtunneltester används i denna analys. Vanlig branschprogramvara används, såsom Pointwise för mesh-generering och ANSYS Fluent för CFD-beräkningar. En fullständig svepning av anfallsvinkel, från 0 grader till överstegring, utförs på standardkonfigurationen vid start med tre element, för för

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8

Yu, Jie. "Novel swing arm mechanism design for trailing edge flaps on commercial airliner." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/9586.

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This thesis will describe the works had been done by the author in the Flying Crane aircraft group design project and the new design of a novel swing arm mechanism which can be applied in the trailing edge high lift devices for this aircraft concept. Flying Crane aircraft is a new generation commercial airliner concept as the result of group design project conducted by China Aviation Industry Corporation I (AVIC I) and Cranfield University. At the end of the group design project, parameters such as take-off and landing distance, trailing edge flap type and deflection in take-off and landing co

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9

Amaral, Filipe Ramos do. "Efeito aeroacústico de excrescências bidimensionais na cova de um eslate." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18148/tde-23032015-155925/.

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O presente trabalho refere-se a um estudo aeroacústico experimental visando caracterizar o ruído de eslate sob a presença de excrescências instaladas no interior de sua cova, e em ângulos de ataque extremos (entre -4 e 18 [º]). O eslate é um dispositivo hipersustentador posicionado no bordo de ataque do perfil aerodinâmico que objetiva a operação da aeronave em voo com uma menor velocidade. Desta maneira, é proporcionado um maior ângulo de estol e consequente maior sustentação, permitindo que os procedimentos de pouso e decolagem sejam mais seguros e que uma pista menor para ambas as oper

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10

Bevz, Serhii, and Сергій Віталійович Бевз. "Preliminary design of a cargo regional jet with a payload capacity of 16 tons." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/53163.

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Робота публікується згідно наказу Ректора НАУ від 27.05.2021 р. №311/од "Про розміщення кваліфікаційних робіт здобувачів вищої освіти в репозиторії університету". Керівник роботи: доцент, к.т.н. Маслак Тетяна Петрівна<br>This bachelor thesis is dedicated to preliminary design of a short-range cargo aircraft with 16 tons of payload, according to the prototypes, the layout of the cargo compartment and the conceptual design of the flaps. The design method is the analysis of prototypes and selection of the most advanced technical solutions, evaluation of geometric characteristics, the calculation

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11

Rakhshani, Bassam. "Multidisciplinary investigations of aerodynamic noise from high - lift leading - edge device." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500776.

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12

Vadsola, Mayank. "High-Order Spectral Element Method Simulation of Flow Past a 30P30N Three-Element High Lift Wing." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40964.

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The purpose of a multi-element high lift device is to increase lift dramatically while controlling the stall limit. The fluid flow over a multi-element high lift device has been explored widely both experimentally and numerically at high Reynolds numbers (O(10^6 )). The numerical simulations use turbulence models and hence details of the flow are not yet available. Low Reynolds number (O(10^4 )) flows over high lift devices have not been explored until recently. These lower Reynolds number flows have applications in the development of small aerial vehicles. The present work discusses bo

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13

Farnum, Phillip H. "The high power device tester addition to CASS : a life cycle cost analysis." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA282956.

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14

Martins, Pires Rui Miguel. "Design methodology for wing trailing edge device mechanisms." Thesis, Cranfield University, 2007. http://hdl.handle.net/1826/3393.

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Over the last few decades the design of high lift devices has become a very important part of the total aircraft design process. Reviews of the design process are performed on a regular basis, with the intent to improve and optimize the design process. This thesis describes a new and innovative methodology for the design and evaluation of mechanisms for Trailing Edge High-Lift devices. The initial research reviewed existing High-Lift device design methodologies and current flap systems used on existing commercial transport aircraft. This revealed the need for a design methodology that could im

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15

Florián, Martin. "Výpočet zatížení vztlakových klapek letounu L410NG a porovnání s letovým měřením." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232015.

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The computational model design of a twin-engine, turbo-propeller, commuter aircraft and its two landing configuration analysis is the subject of the Master‘s thesis. The solution contents calibration part, creation of a computational mesh, global aerodynamics characteristics definition and detailed high lift devices load of L410 NG aircraft. The acquired results are compared to wind tunnel data. The comparison of accuracy and advantages of CFD is involved as well.

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16

Liu, Xi. "Semi-parametric Bayesian Inference of Accelerated Life Test Using Dirichlet Process Mixture Model." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1447193154.

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17

Adewumi, Toyin Mary. "An investigation into the implementation of the life orientation curriculum in selected Fort Beaufort district high schools." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/541.

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The challenges of implementing the curriculum for the Life Orientation learning areas in the National Curriculum Statement have been a matter of concern for South African schools. This study sheds light on the implementation of the LO curriculum in selected high schools in the Fort Beaufort District, in the Eastern Cape Province in South Africa. The study adopted a qualitative approach and used face-to-face interviews, focus group interviews, classroom observation and document analysis to collect the data. The purpose of the study was to investigate the implementation of the Life Orientation c

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18

Gil, Vanessa. "Evaluating the Effects of Utilizing a Mobile Device by Transitioning High School Students with Intellectual Disability to Locate Items from a Grocery List and Improve their Independence." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3682.

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Individuals with Intellectual Disability (ID) struggle to learn daily living skills (DLS) required for independent living. One specific skill set that is challenging for individuals with ID is grocery shopping. The current study is one of two investigations that have been undertaken entirely in the community and without the use of booster session simulations in a classroom. This study investigated the effects of using least-to-most prompting and mobile technology as a tool to assist 18 to 22-year-old adult students with ID to find six items from a grocery-shopping list. Dependent measures incl

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19

Lemoine, Benoît. "Etude aéroacoustique de configurations génériques de dispositifs hypersustentateurs : approches analytique et expérimentale." Phd thesis, Ecole Centrale de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00965211.

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Depuis plusieurs décennies, le trafic aérien ne cesse de croître. Ainsi, près de 6 milliards de passagers transitent dans le monde par an. Les objectifs européens à l'horizon 2020 en terme d'émission sonore des aéronefs imposent une réduction de 10 dB par point de mesure par rapport aux aéronefs de l'an 2000. Dans ce contexte, le projet européen VALIANT (VALidation and Improvement of Airframe Noise prediction Tools) a pour but principal de tester, valider et améliorer les codes numériques et les modèles de prédiction du bruit de cellule (trains d'atterrissage + voilure) sur des géométries simp

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20

Razavi, Mashoof Arash. "High intensity focused ultrasound in ophthalmology : part one, transscleral drug delivery : part two, infrared thermography for scalable acoustic characterization, an application in the manufacture of a glaucoma treatment device." Electronic Thesis or Diss., Lyon 1, 2014. http://www.theses.fr/2014LYO10066.

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Les ultrasons (US) thérapeutiques sont devenus un sujet d'intérêt croissant en ophtalmologie. Les ultrasons focalisés de haute intensité (HIFU) pour le traitement du glaucome et pour la délivrance de médicaments dans l'oeil sont les deux principaux domaines de recherche dans ce domaine. Cette thèse traite des deux sujets en deux parties distinctes : l'administration de médicaments ou drug delivery par d'ultrasons (USDD) à travers la sclère et la caractérisation par rayonnement infrarouge (IR) d'un dispositif HIFU ophtalmique pour le traitement du glaucome. Bien que plus perméable que la cornée

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21

Razavi, Mashoof Arash. "High intensity focused ultrasound in ophthalmology : part one, transscleral drug delivery : part two, infrared thermography for scalable acoustic characterization, an application in the manufacture of a glaucoma treatment device." Phd thesis, Université Claude Bernard - Lyon I, 2014. http://tel.archives-ouvertes.fr/tel-00996286.

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Therapeutic ultrasound has become a topic of growing interest in ophthalmology. High intensity focused ultrasound (HIFU) for the treatment of glaucoma and ultrasound (US) drug delivery are the two main areas of research in this field. This work addresses these domains in two separate parts: transscleral ultrasound drug delivery (USDD), and infrared (IR) field characterization of an ophthalmic HIFU device for glaucoma treatment. The sclera is a promising pathway for ocular drug delivery, since transscleral administration can address both the anterior and posterior segments of the eye. Due to th

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22

Rata, Mihaela. "Endocavitary applicator of therapeutic ultrasound integrated with RF receiver coil for high resolution MRI-controlled thermal therapy." Phd thesis, Université Claude Bernard - Lyon I, 2009. http://tel.archives-ouvertes.fr/tel-00692346.

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This thesis presents technical and methodological developments aiming tooffer a viable alternative for the treatment of digestive cancers (rectum and esophagus). Compared to the standard methods of therapy, the high intensity contact ultrasound guided by MRI is a less invasive approach. MRI offers 2 advantages: good spatial resolution, and real-time temperature control. This treatment method requires efficacy and safety. Three prototypes of RF coil integrated with ultrasound transducers were built in order to increase the spatial and temporal resolution ofthe MR images, and the accuracy of the

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23

Rata, Mihaela. "Endocavitary applicator of therapeutic ultrasound integrated with RF receiver coil for high resolution MRI-controlled thermal therapy." Electronic Thesis or Diss., Lyon 1, 2009. http://www.theses.fr/2009LYO10282.

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Cette thèse présente des développements techniques et méthodologiques visant une alternative viable pour le traitement des cancers digestifs (rectum, œsophage). Par rapport aux méthodes standards de thérapie, les ultrasons de contact de haute intensité sous guidage IRM sont une approche moins invasive. L’IRM offre 2 avantages: bonne résolution spatiale et contrôle en temps réel de la température. Cette méthode de traitement demande efficacité et sécurité. Trois prototypes d’antenne RF intégrées à des transducteurs ultrasonores ont été réalisés afin d’améliorer la résolution spatiale et tempore

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24

Dvořák, Petr. "Optimalizace štěrbinové vztlakové klapky letounu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228790.

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The main objective of this diploma thesis is to optimize the high lift device on the wing of the Phoenix Air U-15 ultralight aircraft, so that it complies with the UL-2 regulation regarding the stalling speed – 65 KPH. This is fulfilled by optimization of the slotted flap position. Methods used include the Response Surface Method and the Computational Fluid Dynamics approach – namely Ansys Fluent v6 software package. Furthermore, the paper deals with take-off flap optimization and construction of the flap deflection mechanism.

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25

Lin, Chi-Chih, and 林啟智. "Implementation of the High-lift Devices on a Small Vertical-Axis Wind Turbine." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/47d37h.

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碩士<br>中華大學<br>機械工程學系碩士在職專班<br>101<br>The study entitled the performance improvement of the lift type blade small vertical axis wind turbine. Attempt to explore the concept design of the small vertical-axis wind turbine was performed by the installation of a Gurney flap. The purpose of this work was to study the effects of the blade weight, radius of blade rotation, the size, location of the trailing edge flap, and the leading edge flap angle on the performance of the small vertical-axis wind turbine. The non-symmetric NACA 4412 airfoils made of plastic ABS resin (specific gravity 1.06) and t

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26

Huang, Bo-Cheng, and 黃柏誠. "Design and Fabrication for Modular High-lift UAV Device." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/70862630332867600600.

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碩士<br>中華科技大學<br>航空機械系飛機系統工程碩士班<br>103<br>Present study designs and fabrication the modular high-lift device used for UAV when execute disaster task. Device was designed to construct on the belly of UAV and has individually control, actuator and power supply systems. The active attitude feedback system was developed by Arduino development broad and MPU-6050 electric gyro. It can automatically adjust attitude of high-lift wing based on the aircraft attitude variation to supply additional lift and a Li-Po battery was used for long time operation. Appearance was developed by CATIA and simulates ac

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27

PrasanthMurugan and 吳寶山. "COMPUTATIONAL SIMULATION OF A HIGH LIFT DEVICE FOR DRONE." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/buank2.

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28

Botha, Jason Daniel Michael. "Optimisation of a novel trailing edge concept for a high lift device." Thesis, 2015. http://hdl.handle.net/10539/17760.

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This research aims to improve aerodynamic performance of a high lift system by means of implementing a novel concept (referred to as the ap extension) on the leading edge of the ap of a three element high lift device. The concept is optimised using two optimisation approaches based on Genetic Algorithm optimisations. A zero order approach which makes simplifying assumptions to achieve an optimised solution: and a direct approach which employs an optimisation in ANSYS DesignXplorer using RANS calculations. The concept was seen to increase lift locally at the ap. The solution to the

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29

Wang, Shih-Wei, and 王士偉. "Current Mode Buck Boost DC-DC Converter with High Efficiency and Smooth Transition for Extending Battery Life in Portable Devices." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/s74vyg.

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碩士<br>國立交通大學<br>電機學院IC設計產業專班<br>98<br>Recently, portable devices such as mobile phones, GPS, PDAs and digital cameras have become necessities of life, the mainstream of the market of electronic products. In order to extend the battery life of these battery-powered multimedia devices, high-efficiency power management techniques are urgently demanded. One intuitive method is to use all the battery energy. Since the input voltage of battery might be higher or lower than the input voltage, the DC - DC converter must be able to work in a wide input voltage range. Therefore, the buck-boost converter

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30

Hong, Jhe-Bin, and 洪哲檳. "The thermal stress analysis and life-span of a swiss-roll burning device under the high temperature of transient state are assessed." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/16926953238201613199.

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