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Showing 1 to 13 of 13 for “"Lorentz forces"”.
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Effects of Lorentz forces on flame holding.
Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Thesis. 1965. Sc.D.
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A finite element method for the fully-coupled magnetohydrodynamics
… equations, which are extended to account for the Lorentz forces, and by Maxwell equations from which the magnetic induction equation is obtained. Magnetohydrodynamic problems are, thus, interdisciplinary and coupled in a two-way fashion, since the effect of the velocity field appears in the …
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Kelvin-Helmholtz instability in aluminium reduction cells
… cells the intense magnetic fields and associated Lorentz forces drive steady flows in the cryolite and aluminium layers. Generally there is a discontinuity in velocity between the layers, which gives rise to a Kelvin-Helmholtz instability, and the study of this effect is the subject of the thesis. …
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Development of an experiment to study the effects of transverse stress on the critical current of a niobium-tin superconducting cable
… pattern) by mechanically simulating the ITER Lorentz stress condition. The apparatus was assembled at MIT and preliminary tests at 77 K and room temperature were made to improve the design prior to carrying out the actual experiments. These were done at the National High Magnetic Field …
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Characterization of Liquid Metal Free Surface Response to an Electromagnetic Impulse and Implications for Future Nuclear Fusion Devices
… and magnetic flux densities resulting in large Lorentz forces. Furthermore, if the PFCs are LM, the forces excite wave behavior that has not previously been investigated. The work presented here first characterizes the response of LMs to current pulses which peak between 50 and 200 kA and …
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Verification and Validation of Magnetohydrodynamics Simulations of Electrically Exploded Conductors
… and foils all take advantage of the extreme Lorentz forces and/or Ohmic heating generated by intense electrical current pulses through an initially solid conductor. Magnetohydrodynamics (MHD) simulations are used to interpret results of these pulsed power systems and design targets for future …
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IN-SITU ADDITIVE MANUFACTURING OF METALS FOR EMBEDDING PARTS COMPATIBLE WITH LIQUID METALS TO ENHANCE THERMAL PERFORMANCE OF AVIONICS FOR SPACECRAFT
… 650 mm3/sec and generated flow pressure due to Lorentz forces of up to 230 Pa, resulting in heat transfer improvement relative to passive prototype of 1.054.
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Fundamental study of magnetic field-assisted micro-EDM for non-magnetic materials
… of the µ-EDM process through the use of Lorentz forces induced in the melt pool. Single-discharge events were carried out on non-magnetic Grade 5 titanium workpieces to investigate the mechanics of material removal and evaluate the effectiveness of these two techniques. Discharge crater …
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Volumetric, Magnetic Resonance-Visible, and Radiation-Sensitive Detectors For Magnetic Resonance Image-Guided Radiation Therapy
… is oriented perpendicular to the radiation beam, Lorentz forces act on secondary electrons causing hot and cold spots at tissue transition areas. These interactions with the magnetic field cause perturbations of the dose distribution in three dimensions. Current vendor-supplied electronic quality …
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Hydrodynamische Effekte unter besonderer Berücksichtigung der Wasserqualität und ihre Messverfahren
… conductivity. By means of electromagnetic fields Lorentz-forces are generated, whose effect can be observed in lessening of flow detachment, drag reduction and increased lift. Manifold experimental research results in the area of fluid mechanics have proven that the fluid quality must be taken …
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Ultrasound field measurement and modelling for non-destructive testing
… EMATs can be used for generation by means of Lorentz force or magnetostriction or both, and detection. EMAT technique is non-contact and couplant free and can work at high temperature. These attributes make it ideal for inspection in extreme conditions, such as high temperature, high speed, …
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Analysis of the Modified Square Toroid, A Force-Reduced Electromagnet
Made available in DSpace on 2017-07-06T18:48:28Z (GMT). No. of bitstreams: 3 Hill_James_L_MS.pdf: 59446779 bytes, checksum: 6f9a388bc7f966f031ed23df5e3dc80b (MD5) Hill_James_L_MS_ABS.pdf: 903512 bytes, checksum: d0f38e70bbe02fa291766b009006202e (MD5) license.txt: 4813 bytes, checksum: …
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Vermeidungsstrategien fluiddynamischer Effekte beim Einsatz von Schnellerwärmungstechnologien in der Warmumformung
… als auch die magnethydrodynamische Wirkung der Lorentzkraft bei einer induktiven Erwärmung als Haupttriebkräfte identifiziert werden, die sich aufgrund identischer Kraftvektorrichtungen überlagern und verstärken. Es hat sich gezeigt, dass für den vorliegenden Fall einer 20-30 μm dünnen …