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Showing 1 to 13 of 13 for “"total kinetic energy"”.
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Fission fragment mass distributions and total kinetic energy release of 235-uranium and 238-uranium in neutron-induced fission at intermediate and fast neutron energies LA-UR-15-28829
… of the change in mass distributions and average total kinetic energy ($\overline{TKE}$) release with increasing incident neutron energy for fission of $^{235}$U and $^{238}$U. Although fission was discovered over seventy-five years ago, open questions remain about the physics of the fission …
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Fission fragment mass distributions and total kinetic energy release of 235-uranium and 238-uranium in neutron-induced fission at intermediate and fast neutron energies LA-UR-15-28829
… of the change in mass distributions and average total kinetic energy ($\overline{TKE}$) release with increasing incident neutron energy for fission of $^{235}$U and $^{238}$U. Although fission was discovered over seventy-five years ago, open questions remain about the physics of the fission …
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The Spatial Structure of Turbulent Rayleigh-Benard Convection
… were found to contain approximately 40% of the total kinetic energy, and this fraction was found to be approximately independent of the Rayleigh number. This leads to the conclusion that the wind of turbulence (U) scales with the velocity fluctuations (ufluct), U ∼ u fluct. The …
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Fission dynamics in a microscopic theory
… years. In this work, a qualitative new nuclear energy density functional (NEDF) is developed, which contains only seven uncorrelated fitting parameters, and have excellent performance in describing various nuclear properties, e.g. nuclear mass, charge radii, neutron separation energy, shell …
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Shear flow localization in thermoviscoplastic materials and a numerical study of dynamic problems in continuous media
… criterion based on the evolution of the total kinetic energy is proposed and used in comparing the susceptibilities of various engineering materials to localization. Further, the completion of localization is identified with the attainment of a maximum in the plastic strain rate at the …
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CFD – DEM Modeling and Parallel Implementation of Three Dimensional Non- Spherical Particulate Systems
… by observing the conservation of momentum and total kinetic energy. Furthermore, the non-spherical DEM model is coupled with an in-house fluid flow solver (GenIDLEST). The combined CFD-DEM model's results are validated by comparing to experimental measurements in a fluidized bed. The parallel …
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Kinematics and energetics of the mesoscale mid-ocean circulation : MODE
… with periods greater than 200 days, an eddy energy containing band of 80 to 120 day periods, and high frequencies wìth periods less than 30 days. At very low frequencies, the zonal kinetic energy exceeds the meridional at all depths. In the thermocline, the very low frequency zonal flow …
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Modeling real world phenomena using molecular dynamics and continuum simulations
… retained its structure and gained rotational energy upon contact with the smoother HOPG surface and got accommodated or stuck when incident on the rougher quartz surface. It was observed that the final total kinetic energy retained by the aggregates decreased as the incident velocity was …
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Seasonal and spatial structure of the gravity waves and vertical winds over the central USA derived from the NOAA Profiler Network data
… analysis of the profiler winds. The most kinetic energy was found to be associated with the low-frequency horizontal component of gravity waves. A consistent seasonal pattern and geographical distribution of kinetic gravity wave energy were observed in the troposphere, with maxima reaching …
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Dynamics and stability of flow past a circular cylinder in ground effect
… analysis. The results show that about 60% of the total kinetic energy in the near wake region (in the time-averaged sense) is contained only in the first three POD modes even when the energetically dominant, von Karman-type vortex shedding becomes intermittent at h/d = 0.4. It is also shown that …
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Zonal flow driven by convection and convection driven by internal heating
… states at large Ra. The fraction of the total kinetic energy comprised by zonal flow approaches unity as Ra grows. At a Prandtl number of 1, vertical convective heat transport occurs in temporal bursts, nearly vanishing in between, and is non-monotonic in Ra. At Prandtl numbers of 3 and …
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Functional design and scaling of the jumping mechanism of the African desert locust
… animals. Calculations indicate that the energy stored in the substantial deflection of the adult, metathoracic tibiae during the jump may be as high as 10% of the total kinetic energy of the jump. Using the models that generated relationships between morphology and body size proposed by …
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Dynamics of Atmospheric Gravity Wave Breaking in the Mesopause Region
… of instabilities as well.</p> <p>Next, the energy conversion and transfer during GW breaking are investigated with CGCAM simulation. The total kinetic energy change and the amount of energy converted to internal energy and potential energy in a chosen region are derived. Before GW starts to …