Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Electrothermal Instability"”.
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The Effect of Anomalous Resistivity on the Electrothermal Instability
The current driven electrothermal instability (ETI) forms when the material resistivity is temperature dependent, occurring in nearly all Z-pinch-like high energy density platforms. ETI growth for high-mass density materials is predominantly striation form which corresponds to magnetically …
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Onset in magnetoplasmadynamic thrusters : a model of an electrothermal instability
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Experimental studies of the electrothermal instability using electrically thick, coated metal
The electrothermal instability (ETI) plays an important role in the thermal and hydrodynamic uniformity of metallic systems carrying electrical current densities greater than approximately 1 MA/mm^2. Most importantly, the stratified form of the ETI generates and amplifies temperature and …
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Magnetohydrodynamic Simulations of Fast Instability Development in Pulsed-Power--Driven Explosions and Implosions of Electrical Conductors
… yield. High levels of azimuthally-correlated MHD instability structures have been observed on cylindrical liner experiments without a pre-imposed axial magnetic field (Bz=0) elsewhere in the literature and are believed to be seeded from surface machining roughness. This dissertation uses highly …
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Unraveling the Reconfiguration Dynamics of Silver Nanowire Networks under Electrothermal Stress
… with durability. In this work, we focus on electrothermal instability and provide new insights into the electrothermal drivers of silver nanowire network failure. First, we borrow the notion of betweenness centrality from graph theory and test its applicability to simulated nanowire network …
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Verification and Validation of Magnetohydrodynamics Simulations of Electrically Exploded Conductors
Dense Z-pinches, magnetically-driven flyer plates, and electrically exploded wires 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 …