# Browse by Subject "Physics, Fluid and Plasma"

• (1993)
The propagation of acoustic waves in porous media is of interest in a variety of areas, including oil well logging, the seepage of contaminants into ground water supplies, and the flow of fluids in packed beds. The aim of ...

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• (2006)
After describing these advancements in methodology, we apply our new technology to fluid sodium near its liquid-vapor critical point. In particular, we explore the microscopic mechanisms which drive the continuous change ...

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• (1987)
D-T fusion-born alpha particles are mirror-confined in the central cell of a tandem mirror reactor. The resulting anisotropic loss-cone distribution of the alpha particles in velocity space is capable of destabilizing low ...

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• (1972)

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• (1989)
This dissertation describes the design, construction, and proof-of-principle verification of a neutral hydrogen flux detection system, based on an ECRH discharge as the neutral flux ionizer. The significant features of the ...

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• (1974)

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• (1994)
The high voltage spark has been used many years for emission spectrochemical analysis. Yet, spark studies have produced only heuristic descriptions of spark analyte sampling and excitation. It has been dogma in the analytical ...

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• (1989)
A thin layer of a single-component Boussinesq fluid, contained between two rigid horizontal plates of low thermal conductivity, is cooled from above and heated from below. In the steady-static state, a heat flux traverses ...

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• (1987)
The invariance properties of various sets of magnetohydrodynamic (MHD) equations are studied using techniques from the theory of differential forms. Equations considered include the ideal MHD equations in different geometries ...

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• (1991)
The purpose of this thesis was to explore computationally the three dimensional hydrodynamics of extragalactic radio jets. This entailed putting together a large number of numerical tools before such simulations could be ...

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• (1992)
Coating flows have many very important applications in engineering. The first part of this thesis deals with gravity-driven reacting coating flows down an inclined plane. When the reaction activation energy is large and ...

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• (1989)
This thesis deals with the theory of the primary nucleation and subsequent expansion of the superfluid $\sp3$He-B phase in the metastable, hypercooled A phase. An overview of the theory of dynamical phenomena in Fermi ...

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• (2000)
Boron particles ignited in Ar/F/O2 mixtures show a rapid decrease by a factor of four in ignition and burning times as the mole fraction ratio XF/XO2 is increased from 0 to 0.25. For values of XF/XO2 greater than 0.5 ...

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• (2007)
While the objective is to explore alternative damage mechanisms due to ultrasound, the work is not restricted as such. Indeed, the work is concerned with surface tension driven singularities at fluid interface in general. ...

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• (2007)
A pulsed vacuum arc discharge emits a plasma as well as macroparticles in the form of micron-sized molten droplets of cathode material. Due to their direction of flight and submicron to 100 mum diameter, these macroparticles ...

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• (1991)
In order to model liquid-metal flows in self-cooled liquid-lithium blankets for magnetic-confinement fusion reactors, liquid metal flows in rectangular ducts with thin conducting walls have been treated by combining ...

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• (1991)
Low pressure optically triggered pseudosparks, or Back-Lit Thyratrons (BLT), are inherently multidimensional transient devices. The method employed to model electron transport in such devices is therefore problematic. A ...

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• (1997)
Simulation of chemical lasers such as the chemical oxygen-iodine laser (COIL) is of timely interest due to the recent acceleration of the airborne laser military research program and ongoing commercial development programs. ...

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• (1989)
A new vortex method for simulating two-dimensional buoyancy-driven flows is presented. This Lagrangian method utilizes a discrete representation of the known density field along with the vorticity transport equation and ...

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• (1998)
The shock-induced separation process was found to dramatically increase the streamwise and transverse Reynolds normal stresses (which both peak near reattachment), the primary shear stress, and the normal stress anisotropy. ...

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