Effects of small-scale fluctuations in the neutrino radiation on core-collapse supernova explosions are examined. Through a parameter study with a fixed radiation field of neutrinos, we find substantial differences between the results of globally anisotropic neutrino radiation and those with fluctuations. As the number of modes of fluctuations increases, the shock positions, entropy distributio...

Abstract

A numerical model is developed to simulate waves generated by high-speed vessels traveling at subcritical, transcritical and supercritical speeds in shallow water over water of varying depth. The waves in the far field are assumed to be weakly dispersive with wavelengths much longer than the water depth. The vertical profile of the flow field is obtained from a second-order Taylor series expans...

Identifying Underground Nuclear Explosions (UNEs) and discriminating them from natural earthquakes is a critical issue for the verification of the Comprehensive nuclear-Test-Ban Treaty (CTBT). The earthquake source is described as a shear dislocation on a fault plane, which generates both Pand S-wave at the source. On the other hand, the nuclear explosion source is described as an isotropic vol...

a r t i c l e i n f o This work reports on the application and experimental validation, for idealized geometries, of a multiple-fluid Navier–Stokes model of waves generated by rigid and deforming slides, with the purpose of improving predictive simulations of landslide tsunamis. In such simulations, the computational domain is divided into water, air, and slide regions, all treated as Newtonian...