Search Results - "Lahey, R. T."

Evidence for Nuclear Emissions during Acoustic Cavitation by Taleyarkhan, R. P., West, C. D., Cho, J. S., Lahey, R. T., Nigmatulin, R. I., Block, R. C.

“…In cavitation experiments with deuterated acetone, tritium decay activity above background levels was detected. In addition, evidence for neutron emission near…”
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Nuclear emissions during self-nucleated acoustic cavitation by Taleyarkhan, R P, West, C D, Lahey, Jr, R T, Nigmatulin, R I, Block, R C, Xu, Y

“…A unique, new stand-alone acoustic inertial confinement nuclear fusion test device was successfully tested. Experiments using four different liquid types were…”
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A quantitative sub-grid air entrainment model for bubbly flows – plunging jets by Ma, J., Oberai, A.A., Drew, D.A., Lahey, R.T., Moraga, F.J.

“…The accurate prediction of air entrainment is critical in simulating various important multiphase (air/water) flows. In this paper, we present a sub-grid air…”
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Stability analysis of a uniformly heated channel with supercritical water by Gómez, T. Ortega, Class, A., Lahey, R.T., Schulenberg, T.

“…The thermal-hydraulic stability of a uniformly heated channel at supercritical water pressure has been investigated to help understand the system instability…”
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Lateral forces on spheres in turbulent uniform shear flow by Moraga, F.J., Bonetto, F.J., Lahey, R.T.

“…The lateral force on a tethered rigid sphere submerged in a turbulent, uniform shear flow of water was measured. Periodic and non-periodic motions of the…”
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A sub-grid air entrainment model for breaking bow waves and naval surface ships by Moraga, F.J., Carrica, P.M., Drew, D.A., Lahey, R.T.

“…Direct numerical simulations (DNS) of air entrainment by the breaking bow waves of naval surface ships are outside of the computational reach of the most…”
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A center-averaged two-fluid model for wall-bounded bubbly flows by Moraga, F.J., Larreteguy, A.E., Drew, D.A., Lahey, R.T.

“…In a bubbly flow, the presence or absence of the dispersed phase (gas) at a given instant and a given point in space depends on two factors, namely: (a) the…”
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A polydisperse model for bubbly two-phase flow around a surface ship by Carrica, P.M., Drew, D., Bonetto, F., Lahey, R.T.

“…A three dimensional polydisperse model for bubbly two-phase flow around a surface ship is presented. The Boltzmann equation for the bubble mass probability…”
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An analytical study on interfacial wave structure between the liquid film and gas core in a vertical tube by Inada, F., Drew, D.A., Lahey, R.T.

“…A model has been derived for interfacial wave propagation for a liquid film on the wall of a vertical pipe and for a flowing gas in the central core. An…”
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The analysis of void wave propagation in adiabatic monodispersed bubbly two-phase flows using an ensemble-averaged two-fluid model by Park, J.-W., Drew, D.A., Lahey, Jr, R.T.

“…A three-dimensional two-fluid model has been developed using ensemble-averaging techniques. The two-fluid model was closed for adiabatic two-phase bubbly flows…”
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The interaction of background ocean air bubbles with a surface ship by Carrica, P. M., Bonetto, F. J., Drew, D. A., Lahey Jr, R. T.

“…A two‐fluid model suitable for the calculation of the two‐phase flow field around a naval surface ship is presented. This model couples the Reynolds‐averaged…”
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Additional evidence of nuclear emissions during acoustic cavitation by Taleyarkhan, R P, Cho, J S, West, C D, Lahey, Jr, R T, Nigmatulin, R I, Block, R C

“…Time spectra of neutron and sonoluminescence emissions were measured in cavitation experiments with chilled deuterated acetone. Statistically significant…”
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Wall-resolved spectral cascade-transport turbulence model by Brown, C.S., Shaver, D.R., Lahey, R.T., Bolotnov, I.A.

“…•The spectral cascade-transport model (SCTM) is applied to higher Reynolds number channel flow.•Spectral turbulence models are excellent candidates for…”
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A first order relaxation model for the prediction of the local interfacial area density in two-phase flows by Milliest, M., Drew, D.A., Lahey, R.T.

“…Many energy production and chemical processes involve vapor/liquid two-phase flows. Mass and energy are often exchanged between the vapor and the liquid…”
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AN ANALYSIS OF PHASE DISTRIBUTION AND TURBULENCE IN DISPERSED PARTICLE/LIQUID FLOWS by ALAJBEGOVIC, A., DREW, D. A., LAHEY, R. T.

“…An analysis of dilute, turbulent particle/liquid two-phase flow is presented. The three-dimensional conservation equations that govern turbulent motion in…”
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Assessment of turbulent dispersion models for bubbly flows in the low Stokes number limit by Moraga, F.J, Larreteguy, A.E, Drew, D.A, Lahey, R.T

“…Two-fluid turbulent dispersion models have been compared with direct numerical simulations (DNS) of a decaying turbulence bubbly flow in the low Stokes number…”
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Modeling, analysis and prediction of neutron emission spectra from acoustic cavitation bubble fusion experiments by Taleyarkhan, R.P., Lapinskas, J., Xu, Y., Cho, J.S., Block, R.C., Lahey, R.T., Nigmatulin, R.I.

“…Self-nucleated and external neutron nucleated acoustic (bubble fusion) cavitation experiments have been modeled and analyzed for neutron spectral…”
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THE EFFECT OF BUOYANCY ON PHASE DISTRIBUTION IN DISPERSED TURBULENT TWO-PHASE FLOWS by Singhal, M., Lahey, R. T., Drew, D. A.

“…Advanced generation three-dimensional (3-D) two-fluid models and computational multiphase fluid dynamic (CMFD) solvers give good predictions of dispersed flows…”
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Analysis of chaotic instabilities in boiling systems by Chin-Jang Chang, Lahey, Richard T.

“…An analytic model for the investigation of non-linear dynamics in boiling systems has been developed. This model is comprised of a nodal formulation that uses…”
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An application of fractal and chaos theory in the field of two-phase flow & heat transfer by Lahey, R. T.

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