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 11 of 11 for “"shock-driven"”.
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Bioagent defeat in shock driven gas flow
The problem of planar shock interaction with gas cylinders whose axis of symmetry is parallel to the plane of the shock has been well studied both experimentally and numerically, and in this case, the flow evolution driven by Richtmyer-Meshkov instability is well characterized (although, as this …
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Behavior of the Embedded Phase in a Shock-Driven Two-Phase Flow
… experimental study of droplet acceleration in a shock-driven two-phase flow. The study serves to identify the characteristics of the boundary layer growth behind a normal moving shock wave in a shock tunnel. Liquid propylene glycol droplets are pre-mixed with air, and slowly injected into the …
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Studies of electron heat conduction in magnetized, shock-driven implosions at OMEGA
… 50 T seed magnetic field on the performance of a shock-driven, direct-drive ICF implosion with an asymmetric drive. In these experiments, measurements of the hot spot asymmetry at bang time indicate a 4.75x P2/P0 enhancement when magnetized with a 50 T initial field. Time-resolved measurements of …
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A Novel Dual-Imaging Approach for Visualizing Multiphase and Droplet Interactions including Shock-Driven Flows
<p>Shock-droplet/particle interactions have garnered substantial interest in recent years, fueled by advancements in aerospace and defense technologies, including supersonic and hypersonic systems in highly humid conditions, as well as the ongoing space exploration efforts from global space centers …
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Studies of ion kinetic effects in shock-driven inertial confinement fusion implosions at OMEGA and the NIF and magnetic reconnection using laser-produced plasmas at OMEGA
Studies of ion kinetic effects during the shock-convergence phase of inertial confinement fusion (ICF) implosions and magnetic reconnection in strongly-driven, laser-produced plasmas have been facilitated by the use of shock-driven ICF implosions and diagnosed using both mature and newly-developed …
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Characterization framework to develop ball-milled thermites as additives to polymer-bound explosives
… condensed-phase oxidizer capable of rapid, shock-driven reactions. This work presents an experimental framework to streamline the characterization of intrinsic ARM composite batch reactive behavior unaided by packing microstructure, as well as its reactive interplay with surrounding reacting …
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Disc-planet interactions in inviscid discs
… via the instability of the edges of planet-driven gaps. The main motivation of this thesis is to improve our understanding of their formation in order to put constraints on yet unseen planets. Consequently, in this thesis, we investigate this interaction of young planets with the disc gas …
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Design of experimental apparatus for generation and measurement of an aerosol
… a system for generating aerosol delivery into shock tube for interface creation and a method to measure aerosol is developed. In chapter 1, a brief introduction of hydrodynamic instabilities later focussing on shock driven multiphase instabilities (SDMI) and its importance is presented. SDMIs …
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Exploring evolution of multi-ion effects and electron temperature in ICF implosions at Omega and the NIF
… measurements of multiple ion temperatures in shock-driven ICF implosions, it is determined that shocks couple energy directly proportional to mass in multi-ion plasmas causing the deuterons and tritons to be out of thermal equilibrium during the shock-burn phase. It is also found that …
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Studying Particle and Energy Transport using Nuclear and X-ray Diagnostics for Discovery Science and Inertial Confinement Fusion
… The experiments utilized one-dimensional, shock-driven implosions of D³He gas-filled thin-glass capsules to reach conditions relevant to ICF. In the first set of experiments, low-velocity ion stopping was measured and used to constrain the ion-electron energy exchange cross section at …
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Studies of non-hydrodynamic processes in ICF implosions on OMEGA and the National Ignition Facility
… of the plasma. Such conditions arise during the shock convergence phase of inertial confinement fusion (ICF) implosions, when they may modify the compression and ignition of the fuel from the evolution predicted by main-line hydrodynamic simulations. Kinetic plasma dynamics relevant to ICF …