36 citations · 135 across the 13 of their papers we have counts for
14 papers
Multigroup Radiation Diffusion on a Moving Mesh: Implementation in RICH and Application to Tidal Disruption Events
Itamar Giron, Menahem Krief, Nicholas C. Stone +1
Radiation-hydrodynamics (RHD) determines the bulk evolution and observable emission in a wide variety of high-energy astrophysical phenomena. Due to their complexity, RHD problems…
The non-equilibrium Marshak wave problem in non-homogeneous media
Nitay Derei, Shmuel Balberg, Shay I. Heizler +3
We derive a family of similarity solutions to the nonlinear non-equilibrium Marshak wave problem for an inhomogeneous planar medium which is coupled to a time dependent radiation d…
Spatial distribution of local elastic moduli in nanocrystalline metals
Menahem Krief, Yinon Ashkenazy
Elastoplastic properties of nanocrystalline metals are non-uniform on the scale of the grain size, and this non-uniformity affects macroscopic quantities as, in these systems, a si…
A unified theory of the self-similar supersonic Marshak wave problem
Menahem Krief, Ryan G. McClarren
We present a systematic study of the similarity solutions for the Marshak wave problem, in the local thermodynamic equilibrium (LTE) diffusion approximation and in the supersonic r…
Piston driven shock waves in non-homogeneous planar media
Menahem Krief
In this work, we analyze in detail the problem of piston driven shock waves in planar media. Similarity solutions to the compressible hydrodynamics equations are developed, for a s…
Self-similar solutions for the non-equilibrium nonlinear supersonic Marshak wave problem
Menahem Krief, Ryan G. McClarren
Similarity solutions to the nonlinear non-equilibrium Marshak wave problem with a time dependent radiation driving source are presented. The radiation transfer model used is the gr…
An accurate reaction-diffusion limit to the spherical-symmetric Boltzmann equation
Shay I. Heizler, Menahem Krief, Michael Assaf
We resolve a long standing question regarding the suitable effective diffusion coefficient of the spherically-symmetric transport equation, which is valid at long times. To that en…
Solutions of the converging and diverging shock problem in a medium with varying density
Itamar Giron, Shmuel Balberg, Menahem Krief
We consider the solutions of the Guderley problem, consisting of a converging and diverging hydrodynamic shock wave in an ideal gas with a power law initial density profile. The se…
Solutions of the imploding shock problem in a medium with varying density
Itamar Giron, Shmuel Balberg, Menahem Krief
We consider the solutions of the Guderley problem, consisting of an imploding strong shock wave in an ideal gas with a power law initial density profile. The self-similar solutions…
Calculation of elastic constants of embedded-atom-model potentials in the NVT ensamble
Menahem Krief, Yinon Ashkenazy
A method for the calculation of elastic constants in the NVT ensamble, using molecular dynamics (MD) simulation with a realistic many-body embedded-atom-model (EAM) potential, is s…
Analytic solutions of the nonlinear radiation diffusion equation with an instantaneous point source in non-homogeneous media
Menahem Krief
Analytic solutions to the nonlinear radiation diffusion equation with an instantaneous point source for a non-homogeneous medium with a power law spatial density profile, are prese…
The number of populated electronic configurations in a hot dense plasma
Menahem Krief
In hot dense plasmas of intermediate or high-Z elements in the state of local thermodynamic equilibrium, the number of electronic configurations contributing to key macroscopic qua…
The effect of ionic correlations on radiative properties in the solar interior and terrestrial experiments
Menahem Krief, Yair Kurzweil, Alexander Feigel +1
Intending to solve the decade old problem of solar opacity, we report substantial photoabsorption uncertainty due to the effect of ion-ion correlations. By performing detailed opac…
Solar opacity calculations using the super-transition-array method
M. Krief, A. Feigel, D. Gazit
A new opacity model based on the Super-Transition-Array (STA) method for the calculation of monochromatic opacities of local thermodynamic equilibrium plasmas, was developed. The a…