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Tesi sul tema "Rotors – Dynamics"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 7 settembre 2023

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1

Jarroux, Clément. "Nonlinear transient dynamics of on-board rotors supported by Active Magnetic Bearings." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI069/document.

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De manière générale, les turbomachines sont des machines tournantes permettant la conversion des différents types d’énergie. Ces dernières sont composées d’une partie mécanique en rotation, appelée rotor, interagissant avec un fluide. La rotation a donc un rôle clé pour ces machines et la liaison entre les parties fixes et les parties tournantes, appelée palier, est primordiale pour un fonctionnement fiable et optimal. Les turbomachines supportées par des paliers magnétiques actifs (PMAs) sont de plus en plus utilisées par les industriels notamment grâce à l’absence de contact direct entre par

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2

Matos, Catherine Anne Moseley. "Download reduction on a wing-rotor configuation." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/12058.

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3

Rigsby, James Michael. "Stability and control issues associated with lightly loaded rotors autorotating in high advance ratio flight." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26536.

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Thesis (Ph.D)--Aerospace Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: J.V.R. Prasad; Committee Member: Daniel P. Schrage; Committee Member: David A. Peters; Committee Member: Dewey H. Hodges; Committee Member: Lakshmi N Sankar. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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4

El-Shafei, Aly. "Dynamics of rotors incorporating squeeze film dampers." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/87804.

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5

He, Chengjian. "Development and application of a generalized dynamic wake theory for lifting rotors." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/12389.

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6

Bitzer, Michael. "Identification of an improved body aerodynamics model for the BO 105." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/13832.

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7

Riley, Troy M. "Aeroacoustics and Fluid Dynamics Investigation of Open and Ducted Rotors." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627667464605408.

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8

Mendes, Ricardo Ugliara 1987. "Desenvolvimento de um sistema de atuação magnética para excitação de sistemas rotativos." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264158.

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Orientadores: Kátia Lucchesi Cavalca Dedini, Luiz Otávio Saraiva Ferreira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-17T15:03:09Z (GMT). No. of bitstreams: 1 Mendes_RicardoUgliara_M.pdf: 2835811 bytes, checksum: c8cae753b116c3893246e25fb64fdf4c (MD5) Previous issue date: 2011<br>Resumo: Máquinas rotativas apresentam um vasto campo de aplicação como aeronaves, fábricas, laboratórios e usinas de energia. Estas aplicações contêm eixos girando a altas velocidades que devem ter alto nível de confiabilidade

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9

Medeiros, Everton Coelho de. "Projeto e avaliação do comportamento dinâmico de um conjunto de mancais hidrodinâmicos aplicados a um rotor Jeffcott /." Guaratinguetá, 2017. http://hdl.handle.net/11449/151475.

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Orientador: Mauro Hugo Mathias<br>Coorientador: Willy Roger de Paula Mendonça<br>Banca: José Elias Toamzini<br>Banca: Everaldo de Barros<br>Resumo: Os estudos relacionados a máquinas rotativas são muito importantes no apoio e manutenção da operação de máquinas de grande porte, tais como turbo compressores ou turbinas. Modelos analíticos e numéricos têm sido aplicados por anos, entretanto, eles nem sempre apresentam as condições reais dessas máquinas. Por isso, o uso de procedimentos experimentais para a avaliação e validação de resultados de máquinas rotativas é importante para a etapa de proj

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10

Jayasuriya, Arachige Tilak A. "Dynamics of unbalanced rotors on rigid and flexible bearings." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0016/MQ48062.pdf.

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11

Del-Mar, Jon. "Quantum molecular dynamics of methyl rotors in peptide links." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272717.

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12

Thiery, Florian. "Simplified models to evaluate nonlinear dynamics in hydropower rotors." Doctoral thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25641.

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In hydropower systems, it is essential to avoid catastrophic failures that lead to human and economic losses. Unfortunately, a hydropower rotor can behave abnormally since several nonlinear effects occur during start-up, shut-downs or when running at nominal speed. Weak nonlinear interaction in the bearings, electromagnetic interaction between the generator and rotor or fluid-structure interaction in turbines are typical nonlinear effects that may appear. Moreover, strong nonlinearities can also occur due to blade contacts and assembly errors. These types of nonlinearities can be dangerous in

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13

Leister, Tim. "Dynamics of rotors on refrigerant-lubricated gas foil bearings." Thesis, Lyon, 2021. http://www.theses.fr/2021LYSEI010.

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La technologie du palier à feuilles (GFB) est l’un des facteurs clés pour la transition envisagée vers des machines tournantes sans huile dans les futurs moyens de transport. Outre les nombreux avantages en termes de taille, de poids, d’efficacité et de propreté, les GFBs offrent la possibilité unique d’être lubrifiés par des fluides de travail tels que les réfrigérants. Cependant, l’analyse numérique des systèmes GFB–rotor lubrifiés par réfrigérant représente un problème interdisciplinaire d’une énorme complexité et d’intérêts contradictoires entre des approches de modélisation et de résoluti

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14

Velkova, Cvetelina Vladimirova. "Modélisation du comportement dynamique des rotors d’hélicoptères." Thesis, Paris, ENSAM, 2013. http://www.theses.fr/2013ENAM0055/document.

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Modélisation du comportement dynamique des rotors d'hélicoptèresL'objectif de la thèse est l'étude et la modélisation du comportement dynamique et aérodynamique du rotor de l'hélicoptère en considérant à la fois les forces d'inertie et les forces aérodynamiques et en tenant compte des déformations élastiques des pales. L'algorithme de couplage proposé permet d'effectuer le calcul transitoire avec échange de données entre les solveurs fluide et structure à chaque pas de temps.La particularité de cette étude est l'utilisation du modèle aérodynamique de la ligne active, qui représente les forces

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15

Robison, Rosalyn Aruna Venner. "Turbulence ingestion noise of open rotors." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/243244.

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Renewed interest in open rotor aeroengines, due to their fuel efficiency, has driven renewed interest in all aspects of the noise they generate. Noise due to the ingestion of distorted atmospheric turbulence, known as Unsteady Distortion Noise (UDN), is likely to be higher for open rotors than for conventional turbofan engines since the rotors are fully exposed to oncoming turbulence and lack ducting to attenuate the radiated sound. However, UDN has received less attention to date, particularly in wind-tunnel and flight testing programmes. In this thesis a new prediction scheme for UDN is desc

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16

Ozbay, Serkan. "Extension-Twist Coupling Optimization in Composite Rotor Blades." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/10422.

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For optimal rotor performance in a tiltrotor aircraft the difference in the inflow and the rotor speeds between the hover and cruise flight modes suggests different blade twist and chord distributions. The blade twist rates in current tiltrotor applications are defined based upon a compromise between the figure of merit in hover and propeller efficiency in airplane mode. However, when each operation mode is considered separately the optimum blade distributions are found to be considerably different. Passive blade twist control, which uses the inherent variation in centrifugal forces on a rot

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17

Tian, Liang. "Investigation into nonlinear dynamics of rotor-floating ring bearing systems in automotive turbochargers." Thesis, University of Sussex, 2012. http://sro.sussex.ac.uk/id/eprint/43029/.

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As a high speed rotating device, a modern turbocharger rotor is commonly supported by floating ring bearings (FRBs), owing to their cost effectiveness for mass production and good damping performance. Thanks to the rapid growth of the power of the modern computer, rotordynamic analysis of turbocharger rotor-bearing systems becomes feasible, and it is closely related to the healthy operation and noise generation of turbochargers. The work in this thesis is concerned with the nonlinear rotordynamic modelling, simulation and analysis in the rotor-FRB system of turbochargers. The conventional line

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18

Liew, Andrew Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "A study of a rotor system with ball bearing induced non-linearities; and the development of transfer matrix techniques suitable for analysing such systems." Awarded by:University of New South Wales. School of Mechanical and Manufacturing Engineering, 2003. http://handle.unsw.edu.au/1959.4/19227.

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This thesis is concerned with enhancing analysis tools for evaluating the non-linear dynamics of rotor bearing systems and in particular those where non-linearity is likely to result in aperiodic or chaotic behaviour, such as rolling element bearing systems. The tool to be enhanced was the transfer matrix approach which has been extensively used in the past for analysing linear rotor bearing systems. However, its use for evaluating non-linear behaviour has been virtually non-existent. Hence, the major aim of the thesis is to extend transfer matrix capabilities to handle non-linear systems. To

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19

Jonnalagadda, V. R. Prasad. "A derivation of rotor blade equations of motion in forward flight and their solution." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/12963.

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20

Lee, An Sung. "An experimental investigation of a noncontacting flexibly mounted rotor mechanical face seal." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/16019.

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21

Wileman, James Michael. "The rotordynamic coefficients of mechanical face seals having two flexibly-mounted rotors." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/17241.

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22

Wileman, James Michael. "Dynamic analysis of eccentric mechanical face seals." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/17343.

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23

Zou, Min. "Real-time monitoring and control of a noncontacting mechanical face seal." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/17650.

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24

Reveles, Nicolas. "Advanced methods for dynamic aeroelastic analysis of rotors." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51904.

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Simulations play an integral role in the understanding and development of rotor- craft aeromechanics. Computational Fluid Dynamics coupled with Computational Structural Dynamics (CFD/CSD) offers an excellent approach to analyzing rotors. These methods have been traditionally “loosely-coupled” where data are exchanged periodically, motion is prescribed for CFD, and the updated loads have a static component for CSD. Loosely-coupled CFD/CSD assumes the solution to be periodic, which may not be true for some simulations. “Tightly-coupled” CFD/CSD, where loads and motion are exchanged at each time

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25

Mazer, Thiago Tazinazzo. "Cálculo em elementos finitos das frequências naturais dos modos de flexão de uma linha de eixo de unidade geradora hidráulica em escala /." Guaratinguetá, 2016. http://hdl.handle.net/11449/136448.

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Orientador: Mauro Hugo Mathias<br>Banca: José Elias Tomazini<br>Banca: Carlos D'Andrade Souto<br>Resumo: A evolução das unidades geradoras hidráulicas é constante, sempre visando a redução de custos, mantendo ou melhorando os fatores de desempenho já alcançados. Em consequência disso têm-se em geral máquinas menores, com velocidade de rotação mais elevada e maiores solicitações mecânicas, além de estruturas com massa otimizada e consequentemente mais flexíveis. Nesse contexto, conhecer o comportamento dinâmico dos rotores das turbinas hidráulicas e ter a capacidade de simulá-los com precisão p

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26

Fulton, Mark V. "Stability of elastically tailored rotor blades." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/12248.

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27

Wang, Yi-Ren. "The effect of wake dynamics on rotor eigenvalues in forward flight." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/13031.

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28

Xie, Lihan. "Suivi numérique des bifurcations pour l'analyse paramétrique de la dynamique non-linéaire des rotors." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI018/document.

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Au cœur des moyens de transport, de transformation d'énergie, et de biens d'équipements, les machines tournantes peuvent avoir des comportements dynamiques complexes dus à de multiples sources de non linéarités liées aux paliers hydrodynamiques, à la présence de fissures, aux touches rotor-stator, ... Des phénomènes comme les décalages fréquentiels et donc de vitesses critiques, les cycles d'hystérésis avec sauts d'amplitudes, le changement brutal du contenu fréquentiel des réponses, sont des expressions de ces comportements. Résoudre les équations du mouvement induites par des modélisations a

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29

Reddy, Urmila Chennuru. "Whole field velocity measurements in three-dimensional periodic flows." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/12063.

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30

Mittal, Manoj. "Modeling and control of a twin-lift helicopter system." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/12174.

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31

Sareen, Ashish Kumar. "Rotorcraft airframe structural optimization for vibration and dynamic stress reduction including damping treatment." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/12951.

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32

Collins, Kyle Brian. "A multi-fidelity framework for physics based rotor blade simulation and optimization." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26481.

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Thesis (Ph.D)--Aerospace Engineering, Georgia Institute of Technology, 2009.<br>Committee Co-Chair: Dr. Dimitri Mavris; Committee Co-Chair: Dr. Lakshmi N. Sankar; Committee Member: Dr. Daniel P. Schrage; Committee Member: Dr. Kenneth S. Brentner; Committee Member: Dr. Mark Costello. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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33

Cook, James Richard. "Development of an aeroelastic methodology for surface morphing rotors." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51807.

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A Computational Fluid Dynamics/Computational Fluid Dynamics (CFD/CSD) coupling interface was developed to obtain aeroelastic solutions of a morphing rotor. The methodology was implemented in Fully Unstructured Navier-Stokes (FUN3D) solver, which communicates aerodynamic forces on the blade surface to University of Michigan’s Nonlinear Active Beam Solver (UM/NLABS) and then imports structural deflections of the blade surface during each time step. Development of this methodology adds the capability to model elastic rotors with flexible airfoils. The method was validated through an aerodynamic

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34

Sun, Cheng. "Quantum dynamics and tunnelling of methyl rotors studied by field-cycling NMR." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/10751/.

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Quantum dynamics and tunnelling of methyl rotors has been studied using field-cycling nuclear magnetic resonance (NMR) spectrometer, in a variety of samples. The characteristic frequency of the tunnelling motion of methyl groups has been investigated using both low-field dipole-dipole driven experiments and tunnel resonance level-crossing experiments. The classical hopping and quantum tunnelling of methyl groups have been studied by making temperature-dependent and field-dependent measurements of the spin-lattice relaxation time T1. The spectral density functions of the dipolar interaction, me

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35

Camargo, Fabio Assis de [UNESP]. "Análise experimental e computacional de um ventilador centrífugo." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151783.

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Submitted by FABIO ASSIS DE CAMARGO null (fabioacamargo@gmail.com) on 2017-10-01T17:50:03Z No. of bitstreams: 1 Dissertação Fabio Assis de Camargo 2017.pdf: 2334192 bytes, checksum: 08f11624969ac9f08a9d018d78bea1f7 (MD5)<br>Approved for entry into archive by Monique Sasaki (sayumi_sasaki@hotmail.com) on 2017-10-02T17:13:14Z (GMT) No. of bitstreams: 1 camargo_fa_me_guara.pdf: 2334192 bytes, checksum: 08f11624969ac9f08a9d018d78bea1f7 (MD5)<br>Made available in DSpace on 2017-10-02T17:13:14Z (GMT). No. of bitstreams: 1 camargo_fa_me_guara.pdf: 2334192 bytes, checksum: 08f11624969ac9f08a9d018

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Mendonça, Willy Roger de Paula [UNESP]. "Otimização dinâmica de rotores com eixos em compósito." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/115839.

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Made available in DSpace on 2015-03-03T11:52:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-09-02Bitstream added on 2015-03-03T12:06:23Z : No. of bitstreams: 1 000804878.pdf: 2650434 bytes, checksum: ef9e16c1a0c4300c6e8f770cf0a58ed0 (MD5)<br>Esta tese apresenta o desenvolvimento de uma metodologia de otimização dinâmica e estrutural para rotores com eixos em material compósito. A dinâmica destes rotores difere das análises convencionais devido à existência de amortecimento interno no eixo. As equações de movimento destes rotores apresentam a influencia do amortecimento interno sob

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37

Mendonça, Willy Roger de Paula. "Otimização dinâmica de rotores com eixos em compósito /." Guaratinguetá, 2014. http://hdl.handle.net/11449/115839.

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Orientador: Mauro Hugo Mathias<br>Banca: José Elias Tomazini<br>Banca: Marcelo Sampaio Martins<br>Banca: José Rui Camargo<br>Banca: Everaldo de Barros<br>Resumo : Esta tese apresenta o desenvolvimento de uma metodologia de otimização dinâmica e estrutural para rotores com eixos em material compósito. A dinâmica destes rotores difere das análises convencionais devido à existência de amortecimento interno no eixo. As equações de movimento destes rotores apresentam a influencia do amortecimento interno sobre o comportamento dinâmico dos rotores. Materiais compósitos podem ser manufaturados em dif

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38

Tu, Chihyung. "Computer-aided design software for rotor dynamics analysis." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-07102009-040616/.

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39

Abras, Jennifer N. "Enhancement of aeroelastic rotor airload prediction methods." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28182.

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Thesis (M. S.)--Aerospace Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Smith, Marilyn; Committee Member: Bauchau, Olivier; Committee Member: Costello, Mark; Committee Member: Moulton, Marvin; Committee Member: Ruffin, Stephen.

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40

Li, Yiguang. "Three-Dimensional Flow and Performance Simulation of Multistage Axial Flow Compressors." Thesis, Cranfield University, 2000. http://dspace.lib.cranfield.ac.uk/handle/1826/4591.

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\Yith the current develop111ent in computer technology and Computational Fluid D)"n<'tlllics techniques, t.he si11utlation within axial flow compressors becomes 1110re and 1110re pract.ical and beneficial to the compressor designs. Due to the insufficient capabilit)" of today's COll1put.ers for three-dimensional unsteady flow 1110delling of 111Ult i~Llg(' axial flow compressors, sophisticated models of steady state flow and perfor111ance 1110delling of the C0111prcssors deserve to be thoroughly investigated. In l1utltistage C0111pressor sinlulations with steady state methods, frame of referenc

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41

Bangalore, Ashok K. "Computational fluid dynamic studies of high lift rotor systems using distributed computing." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/12949.

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42

Casey, Cody. "Crack detection in a rotor dynamic system by vibration monitoring." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/17838.

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43

Pinter-Krainer, Marc. "Molecular dynamics of methyl rotors and hydrogen bonds studied by high pressure NMR." Thesis, University of Surrey, 1996. http://epubs.surrey.ac.uk/959/.

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44

Dakel, Zaki. "Stabilité et dynamique non linéaire de rotors embarqués." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0087/document.

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Les rotors sont excités non seulement par le balourd tournant mais aussi par les différents mouvements de leur support : turbocompresseurs de véhicules, turbomoteurs aéronautiques, pompes à vide portées en sont des exemples industriels. Ainsi la conception de rotors robustes capables de bien fonctionner sous de telles conditions (excitations extrêmes) est nécessaire pour éviter des instabilités, source de défaillance catastrophique. Le présent travail a pour objectif de prévoir le comportement dynamique d’un rotor embarqué monté sur des paliers rigides ou élastiques hydrodynamiques et soumis à

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45

Galera, Larissa 1990. "Análise da influência das características geométricas de selos de fluxo aplicados a rotores." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263035.

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Orientador: Katia Lucchesi Cavalca Dedini<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-24T00:13:00Z (GMT). No. of bitstreams: 1 Galera_Larissa_M.pdf: 7841610 bytes, checksum: b4caff2b3c8de6cf54d4ef086fd47585 (MD5) Previous issue date: 2013<br>Resumo: A análise dinâmica de rotores visa prever o comportamento e identificar desvios caracterizados por meio das respostas dinâmicas do conjunto, fornecendo indicadores de mau funcionamento ou diagnóstico de falhas, e minimizando os riscos de paradas imprevistas

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46

Varney, Philip A. "Transverse fatigue crack diagnosis in a rotordynamic system using vibration monitoring." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47655.

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To increase efficiency, shafts are made lighter and more flexible, and are designed to rotate faster to increase the system's power-to-weight ratio. The demand for higher efficiency in rotordynamic systems has led to increased susceptibility to transverse fatigue cracking of the shaft. Shaft cracks are often detected and repaired during scheduled periods of off-line maintenance. Off-line maintenance can be expensive and time consuming; on-line condition monitoring allows maintenance to be performed as-needed. However, inadequate (or a lack of) monitoring can allow rapidly propagating cracks

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47

Camargo, Fabio Assis de. "Análise experimental e computacional de um ventilador centrífugo /." Guaratinguetá, 2017. http://hdl.handle.net/11449/151783.

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Orientador: Mauro Hugo Mathias<br>Coorientador: Marcelo Sampaio Martins<br>Banca: José Elias Tomazini<br>Banca: Everaldo de Barros<br>Resumo: Este trabalho objetivou um estudo do comportamento dinâmico de rotores em balanço, operando acima da primeira velocidade crítica, suportados em mancais de rolamento. Um caso particular de rotor em balanço, que consiste em um ventilador centrífugo de forno de reaquecimento de uma forjaria, foi selecionado para esse estudo. O rotor analisado encontra-se apoiado em mancais de rolamento, que estão montados em base metálica instalada em fundação de concreto.

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48

Marpu, Ritu Priyanka. "Physics based prediction of aeromechanical loads for the UH-60A rotor." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47661.

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Helicopters in forward flight experience complex aerodynamic phenomena to various degrees. In low speed level flight, the vortex wake remains close to the rotor disk and interacts with the rotor blades to give rise to blade vortex interaction phenomena. In high speed flight, compressibility effects dominate leading to the formation of shocks. If the required thrust is high, the combination of high collective pitch and cyclic pitch variations give rise to three-dimensional dynamic stall phenomena. Maneuvers further exacerbate the unsteady airloads and affect rotor and hub design. The strength

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49

Krothapalli, Krishnamohan Rao. "Helicopter rotor dynamic inflow modeling for maneuvering flight." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/12066.

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50

Berkman, Mert Enis. "An integrated Navier Stokes-full portential-free wake method for rotor flows." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/12388.

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