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Dissertations / Theses on the topic 'Plasma flow in magnetic field'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Bissell, R. C. "Steady, collisionless plasma flow along a magnetic field." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379920.

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2

Plechaty, Christopher Ryan. "Penetration of conductive plasma flows across a magnetic field." abstract and full text PDF (free order & download UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1453608.

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3

Lee, Hyunyong. "Study on Effect of Magnetic Field Configuration on Parallel Plasma Flow during Neutral Beam Injection in Heliotron J." Kyoto University, 2013. http://hdl.handle.net/2433/174742.

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4

Sato, Kunihiro. "Kinetic Analyses of Potential Formation in Plasma Flow along Open Magnetic Fields to a Wall." Kyoto University, 1993. http://hdl.handle.net/2433/154656.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・論文博士<br>博士(工学)<br>乙第8140号<br>論工博第2669号<br>新制||工||906(附属図書館)<br>UT51-93-F240<br>(主査)教授板谷良平, 教授秋宗秀夫, 教授大引得弘<br>学位規則第4条第2項該当

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5

Kevin, Obrejan. "Study of magnetic shaping effects on plasma flows and micro-instabilities in tokamak plasmas using the full-f gyrokinetic code based on a real space field solver." Kyoto University, 2017. http://hdl.handle.net/2433/227650.

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6

Margetis, Alexander. "Beltrami Flows." Kent State University Honors College / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1525299172164402.

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7

Viré, Axelle. "Study of the dynamics of conductive fluids in the presence of localised magnetic fields: application to the Lorentz force flowmeter." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210062.

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When an electrically conducting fluid moves through a magnetic field, fluid mechanics and electromagnetism are coupled.<p>This interaction is the object of magnetohydrodynamics, a discipline which covers a wide range of applications, from electromagnetic processing to plasma- and astro-physics.<p><p>In this dissertation, the attention is restricted to turbulent liquid metal flows, typically encountered in steel and aluminium industries. Velocity measurements in such flows are extremely challenging because liquid metals are opaque, hot and often corrosive. Therefore, non-intrusive measurement d

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8

Langlois, Yilin. "Modélisation de l’arc électrique dans un disjoncteur à vide." Thesis, Vandoeuvre-les-Nancy, INPL, 2010. http://www.theses.fr/2010INPL062N/document.

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Un modèle numérique d’un arc électrique diffus dans un disjoncteur à vide à champ magnétique axial (AMF) a été développé dans le but de mieux comprendre à terme la transition d’un mode de fonctionnement diffus de l’arc vers un mode plus concentré. Le comportement du plasma d’arc a été simulé depuis la sortie de la zone de mélange cathodique jusqu’à l’entrée de la gaine anodique. Le modèle bidimensionnel est basé sur un système d’équations hydrodynamiques à deux fluides non magnétisés (ions et électrons), incluant les équations de conservation d’énergie ionique et électronique. Il est démontré

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9

Garren, David Alan. "Magnetic field strength of toroidal plasma equilibria." W&M ScholarWorks, 1991. https://scholarworks.wm.edu/etd/1539623809.

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The goal of nuclear fusion research is to confine a deuterium-tritium plasma at a sufficiently high temperature (15 keV) and density (3 $\times$ 10$\sp{20}$ m$\sp{-3}$) for a sufficient length of time (1 sec) to produce net fusion power. One means to attain the required plasma confinement is to embed the plasma within a magnetic field. The global structure of this magnetic field determines the variation of magnetic field strength within the surfaces of constant plasma pressure. This field strength variation in turn determines many of the stability and confinement properties of the plasma. This

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10

Simakov, Andrei N. 1974. "Plasma stability in a dipole magnetic field." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/60756.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2001.<br>Includes bibliographical references (p. 137-141).<br>The MHD and kinetic stability of an axially symmetric plasma, confined by a poloidal magnetic field with closed lines, is considered. In such a system the stabilizing effects of plasma compression and magnetic field compression counteract the unfavorable field line curvature and can stabilize pressure gradient driven magnetohydrodynamic modes provided the pressure gradient is not too steep. Isotropic pressure, ideal MHD stability is studied first and a general

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11

Tubman, Eleanor. "Magnetic field generation in laser-plasma interactions." Thesis, University of York, 2016. http://etheses.whiterose.ac.uk/16757/.

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The primary focus of this thesis is understanding the production of magnetic fields during laser-plasma experiments. Each chapter investigates a different mechanism of producing magnetic fields. The first is from the by-product of launching asymmetric shocks which drive Biermann battery generated magnetic fields. The second looks at the reconnection of magnetic fields between two laser focal spots and the third is from fields produced around a current carrying loop target. Blast waves are investigated in the laboratory using a fast framing camera to capture multiple images on a single shot. In

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12

Galicia, Felicisimo. "Plasma wave induced chaos in a magnetic field." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38863.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, (B.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.<br>Includes bibliographical references (leaf 125).<br>by Felicisimo Galicia.<br>B.S.<br>M.Eng.

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13

Miller, Kenneth Elric. "The star thrust experiment, rotating magnetic field current drive in the field reversed configuration /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/9996.

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14

Peter, Andrew Maxwell. "Paramagnetic spin-up of a field reversed configuration with rotating magnetic field current drive /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/9983.

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15

Goode, Brent. "Plasma response to waves in arbitrary magnetic field geometry." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/cr/colorado/fullcit?p3190342.

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16

Went, Daniel Robert. "Magnetic field and plasma in Saturn's near space environment." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/9066.

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This thesis concerns spacecraft observations of magnetic field and plasma in Saturn’s near space environment and compares these observations with those made in and near the Jovian magnetosphere. Such comparisons are equivalent to ‘turning the experimental dial’ in planetary magnetospheres and provide a valuable insight into the way different parameters govern the structure and dynamics of magnetospheres throughout the solar system. Saturn and its magnetosphere is currently being studied by the Cassini spacecraft which, arriving at Saturn in the summer of 2004, became the first spacecraft ever

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17

Short, David James. "Swirling flow induced by a rotating magnetic field." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338644.

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18

Taborda, David Ciro. "Magnetic field modeling for non-axisymmetric tokamak discharges." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-04012017-142757/.

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In this work we study the magnetic field modeling of realistic non-axisymmetric plasma equilibrium configurations and the heat flux patterns on the plasma facing components of tokamak divertor discharges. We start by establishing the relation between generic magnetic configurations and Hamiltonian dynamical systems. We apply the concept of magnetic helicity, used to establish topological bounds for the magnetic field lines in ideal plasmas, and to understand the self-consistency of reconnected magnetic surfaces in non-axisymmetric configurations. After this theoretical discussion, we present

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19

Adams, Matthew Michael. "Magnetic and acoustic investigations of turbulent spherical Couette flow." Thesis, University of Maryland, College Park, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10160544.

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<p> This dissertation describes experiments in spherical Couette devices, using both gas and liquid sodium. The experimental geometry is motivated by the Earth's outer core, the seat of the geodynamo, and consists of an outer spherical shell and an inner sphere, both of which can be rotated independently to drive a shear flow in the fluid lying between them. In the case of experiments with liquid sodium, we apply DC axial magnetic fields, with a dominant dipole or quadrupole component, to the system. We measure the magnetic field induced by the flow of liquid sodium using an external array of

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20

Frierson, Robert V. Jr. "Spectroscopic diagnostics of a plasma in a rotating magnetic field." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/17236.

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21

Hurtig, Tomas. "Plasma cloud penetration across magnetic boundaries." Doctoral thesis, KTH, Alfvén Laboratory, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3804.

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22

Yu, Edmund Po-ning. "Evolution equations for magnetic islands in a reversed field pinch." Access restricted to users with UT Austin EID, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3037030.

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23

Carpino, Francesca. "Quadrupole Magnetic Field-Flow Fractionation: A Novel Technique For The Characterization Of Magnetic Particles." Cleveland, Ohio : Cleveland State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=csu1207595560.

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Thesis (Ph.D.)--Cleveland State University, 2008.<br>Abstract. Title from PDF t.p. (viewed on May 8, 2008). Includes bibliographical references (p. 121-126). Available online via the OhioLINK ETD Center. Also available in print.

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24

Aleksandrova, Svetlana. "Buoyant convection in cavities in a strong magnetic field." Thesis, Coventry University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364613.

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25

Oliver, Matthew. "Density, temperature and magnetic field measurements in low density plasmas." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:df217453-1e10-4684-beb7-83c1bcecf285.

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Low density plasmas are found throughout the known universe. Therefore, accurate diagnostic methods have implications for our understanding of a variety of topics, ranging from star formation to the semi conductor industry. Low density plasmas are ubiquitous in the material processing industry. However, measurements of the electron temperature and density, two of the most fundamental plasma properties, are not straightforward. In the laboratory, we create a low density, radio frequency, helium plasma with a bi-Maxwellian electron distribution, similar to those found in the semiconductor proces

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26

Bawa'aneh, Muhammad S. "Stimulated brillouin backscattering and magnetic field generation in laser-produced plasmas." Thesis, University of Essex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284583.

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27

Brown, Wayne. "Characterisation of low energy ions observed near and during the substorm expansion phase onset." Thesis, University of Warwick, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302621.

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28

Sinatra, Francy L. "Understanding the Interaction Between Blood Flow and an Applied Magnetic Field." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3518.

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Hemodynamic monitoring is extremely important in the accurate measurement of vital parameters. Current methods are highly invasive or noncontinuous, and require direct access to the patient’s skin. This study intends to explore the modulated magnetic signature of blood method (MMSB) to attain blood flow information. This method uses an applied magnetic field to magnetize the iron in the red blood cells and measures the disturbance to the field with a magnetic sensor [1]. Exploration will be done by experimentally studying in-vitro, as well as simulating in COMSOL the alteration of magnetic fie

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29

Sun, Liping. "A flow-through immunomagnetic cell separation in a quadrupole magnetic field /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu148795065854854.

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30

Walter, Erwin. "Field-Aligned Currents and Flow Bursts in the Earth’s Magnetotail." Thesis, Umeå universitet, Institutionen för fysik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-148525.

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We use electric and magnetic field data from MMS spacecraft between 2016 and 2017 tostatistically investigate earthward propagating plasma flow bursts and field-aligned currents(FACs) inside the plasma sheet of the geomagnetic tail. We observe that the occurrence rateof flow burst peaks around the midnight region with decreasing trend towards Earth and theplasma sheet flanks. Further, we distinguish between long and short FACs. Long FACs laston average 6 sec and have a magnitude of 5-20 nA/m 2 . Short FACs last on average 10 timesshorter and have an magnitude of 10-50 nA/m 2 . Both, long and s

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31

Mitma, Pillaca Elver Juan de Dios [UNESP]. "Estudo do comportamento magnético de plasma durante o processo de implantação iônica por imersão em plasma." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/91826.

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Made available in DSpace on 2014-06-11T19:25:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-05Bitstream added on 2014-06-13T19:53:18Z : No. of bitstreams: 1 mitmapillaca_ejd_me_guara.pdf: 802438 bytes, checksum: be2c83ec017ba3f36efb9e9da538c9e6 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Universidade Estadual Paulista (UNESP)<br>O estudo do efeito do campo magnético sobre o processo de implantação iônica por imersão em plasma (3IP) é de grande interesse para o tratamento de materiais. Sendo 3IP uma técnica relativamente nova e de grande relevânc

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32

Zimmerman, Tassilo Malte Gregor. "Theory of the Plasma-Wall Interaction Under the Influence of a Magnetic Field." Thesis, Imperial College London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516183.

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33

McDonald, Darren. "A gyrokinetic analysis of electron plasma waves at resonance in magnetic field gradients." Thesis, University of St Andrews, 1995. http://hdl.handle.net/10023/13975.

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To produce nuclear fusion in a Tokamak reactor requires the heating of a plasma to a temperature of the order of 10 keV. Electron cyclotron resonant heating (ECRH), in which the plasma is heated by radio waves in resonance with the Larmor frequency of the plasma's electrons, is one scheme under consideration for achieving this. A description of such a heating scheme requires a theory to explain the propagation and absorption of high frequency waves in a plasma in the presence of a magnetic field gradient. A WKB analysis can describe some of the processes involved but a complete explanation req

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34

Gupta, Abhinav. "Losses of heat and particles in the presence of strong magnetic field perturbations." Doctoral thesis, Universite Libre de Bruxelles, 2009. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210343.

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Thermonuclear fusion has potential to offer an economically, environmentally and socially acceptable supply of energy. A promising reactor design to execute thermonuclear fusion is the toroidal magnetic confinement device, tokamak. The tokamak still faces challenges in the major areas which can be categorised into confinement, heating and fusion technology. This thesis addresses the problem of confinement, in particular the role of transport along magnetic field lines perturbed by diverse MHD instabilities.<p><p>Unstable modes such as ideal ballooning-peeling, tearing etc. break closed magneti

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35

Sreenivasan, Binod. "Evolution of inertial flow structures in the presence of a magnetic field." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621073.

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36

Mitma, Pillaca Elver Juan de Dios. "Estudo do comportamento magnético de plasma durante o processo de implantação iônica por imersão em plasma /." Guaratinguetá : [s.n.], 2007. http://hdl.handle.net/11449/91826.

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Orientador: Konstantin Georgiev Kostov<br>Banca: Joaquim José Barroso de Castro<br>Banca: Mario Ueda<br>Resumo: O estudo do efeito do campo magnético sobre o processo de implantação iônica por imersão em plasma (3IP) é de grande interesse para o tratamento de materiais. Sendo 3IP uma técnica relativamente nova e de grande relevância para diversas aplicações tecnológicas é importante que ela seja pesquisada e analisada detalhadamente. A aplicação de um campo magnético estático, transversal em relação ao campo elétrico formado durante este processo produz um sistema de campos cruzados ExB. Este

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37

Srikasem, Suthum. "Radiation from an aperture into an anisotropic plasma half-space." Ohio : Ohio University, 1993. http://www.ohiolink.edu/etd/view.cgi?ohiou1173761928.

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38

David, Pierre. "Tomography in a linear magnetised plasma." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0045.

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Quel est le point commun entre des propulseurs à effet hall, des sources d'ions et les grandes machines de recherche sur la fusion magnétique ? Ils sont tous composés de plasmas interagissant avec des champs électrique et magnétique orthogonaux, et leurs tailles, sophistications et inaccessibilités rendent leur étude directe compliquée. Cette étude directe peut être menée à bien sur des machines plus simples, comme la colonne de plasma magnétisée Mistral utilisée dans ce travail, qui sont conçues pour l’étude de mécanismes fondamentaux. La tomographie, quant à elle, est couramment utilisée dan

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39

Hatch, Spencer Mark. "Stormtime and Interplanetary Magnetic Field Drivers of Wave and Particle Acceleration Processes in the Magnetosphere-Ionosphere Transition Region." Thesis, Dartmouth College, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10603779.

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<p>The magnetosphere-ionosphere (M-I) transition region is the several thousand--kilometer stretch between the cold, dense and variably resistive region of ionized atmospheric gases beginning tens of kilometers above the terrestrial surface, and the hot, tenuous, and conductive plasmas that interface with the solar wind at higher altitudes. The M-I transition region is therefore the site through which magnetospheric conditions, which are strongly susceptible to solar wind dynamics, are communicated to ionospheric plasmas, and vice versa. We systematically study the influence of geomagnetic sto

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40

Fridström, Richard. "Resonant magnetic perturbation effect on the tearing mode dynamics : Novel measurements and modeling of magnetic fluctuation induced momentum transport in the reversed-field pinch." Doctoral thesis, KTH, Fusionsplasmafysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-218052.

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The tearing mode (TM) is a resistive instability that can arise in magnetically confined plasmas. The TM can be driven unstable by the gradient of the plasma current. When the mode grows it destroys the magnetic field symmetry and reconnects the magnetic field in the form of a so-called magnetic island. The TMs are inherent to a type of device called the reversed-field pinch (RFP), which is a device for toroidal magnetic confinement of fusion plasmas. In the RFP, TMs arise at several resonant surfaces, i.e. where the field lines and the perturbation have the same pitch angle. These surfaces ar

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41

Ebbers, Tino. "Cardiovascular fluid dynamics : methods for flow and pressure field analysis from magnetic resonance imaging /." Linköping : Univ, 2001. http://www.bibl.liu.se/liupubl/disp/disp2001/tek690s.pdf.

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42

Giersch, Louis Roy Miller. "Experimental investigation of plasma sail propulsion concepts using cascaded arcs and rotating magnetic field current drive /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/9958.

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43

Kumar, Santhosh Tekke Athayil, and santhosh kumar@anu edu au. "Experimental Studies of Magnetic Islands, Configurations and Plasma Confinement in the H-1NF Heliac." The Australian National University. Research School of Physical Sciences and Engineering, 2008. http://thesis.anu.edu.au./public/adt-ANU20080611.171513.

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Rational magnetic flux surfaces in fusion (toroidal plasma confinement) devices can break the magnetic field lines and reconnect them in the form of magnetic islands. Formation of these magnetic islands can have a serious impact on the plasma confinement properties of the device. Islands can in general degrade the confinement by mixing up different regions of the plasma. However there has been experimental evidence of confinement improvement by island induced transport barriers, under certain conditions. Even though there are a large number of theoretical and ex

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44

Stein, Sandra Lynn Wright. "The study of a plasma interacting in an external magnetic field and the production of Kelvin-Helmholtz instabilities as a result /." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1447621.

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45

Beyene, S. "Understanding the formation of magnetic field and plasma structures in the magnetotail via the reconnection process." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1389942/.

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This thesis studies the formation of products of magnetotail reconnection using models and observations. Three studies are presented, the first is an analysis of observations from the Cluster spacecraft, located in different regions of the magnetotail, which allow simultaneous sampling of a Travelling Compression Region (TCR) in the lobe and the underlying magnetic structure in the plasma sheet causing it. Previous work suggests that these structures are created by either single-X-line time-dependent reconnection, forming a flux-bulge, or multiple-X-line reconnection, forming a flux-rope. The

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46

Cohen, Joel (Joel A. ). "Excitation of forced ion acoustic waves, large plasma sheets, and magnetic field fluctuations over Gakona, Alaska." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/53280.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 47-48).<br>Two research subjects: (1) excitation of "forced ion acoustic waves", and (2) "simultaneous excitation of plasma density fluctuations and geomagnetic field fluctuations" are reported in my M.S. thesis. The data was acquired in our experiments conducted at Gakona, Alaska from summer 2007 to winter 2008, using DoD/NSF-funded HAARP facilities and our own optical (ASIS) and radio instruments (VLF receivi

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47

Cetiner, Selma Olwen. "A plasma sheath with collisions in an oblique magnetic field within a divertor in a tokamak." Thesis, Imperial College London, 2005. http://hdl.handle.net/10044/1/11224.

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48

Harle, Thomas. "Radio frequency plasma thrusters : performance evaluation of low magnetic field mode operation through direct thrust measurements." Thesis, University of Surrey, 2015. http://epubs.surrey.ac.uk/807990/.

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This thesis describes an experimental investigation into the performance of a radio frequency plasma thruster (RFPT). This type of thruster does not rely on the use of high voltage ion acceleration grids or beam neutralisers which are typically life limiting elements of an electric thruster. The RFPT excites an atomic or molecular gas into a plasma using an external RF antenna. This plasma is contained by a cylindrical dielectric source tube which is open at one end. An axial magnetic field is applied to the plasma using one or more solenoids or a permanent magnet source. The magnetic field is

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49

Anan, Tetsu. "Open a New Window of Plasma Diagnostics in the Solar Physics with Spectropolarimetric Observation." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/189335.

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50

Galambos, James Paul. "Measurement of the internal toroidal magnetic field on the helicity injected tokamak using the transient internal probe /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/10674.

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