Hydrodynamic Implosion Simulation Including Relativistic Effects on Petawatt-Class Pulse Heating
نویسندگان
چکیده
منابع مشابه
Repetitive petawatt-class laser with near-diffraction-limited focal spot and transform-limited pulse duration
A repetitive petawatt-class Ti:sapphire laser system operating with high spatial and temporal beam quality is demonstrated. Maximum pulse energy of 30 J is obtained via five multi-pass amplification stages. Closed-loop feedback control systems in the temporal and spatial domains are used to yield Fourier-transform-limited pulse duration (33.7 fs), and diffraction-limited focal spot sizes (with ...
متن کاملHydrodynamic simulation of air bubble implosion using a level set approach
The hydrodynamics of the implosion and rebound of a small (10 lm diameter) air bubble in water was studied using a three-dimensional direct numerical simulation (DNS). To study this problem, we developed a novel stabilized finite element method (FEM) employing a combination of ghost fluid and level set approaches. This formulation treats both the air and water as compressible fluids. Using this...
متن کاملA new class of accurate, mesh-free hydrodynamic simulation methods
We present two new Lagrangian methods for hydrodynamics, in a systematic comparison with moving-mesh, smoothed particle hydrodynamics (SPH), and stationary (non-moving) grid methods. The new methods are designed to simultaneously capture advantages of both SPH and grid-based/adaptive mesh refinement (AMR) schemes. They are based on a kernel discretization of the volume coupled to a high-order m...
متن کاملLaser Pulse Heating
Recently, interest has developed in pulsed heating effects on a copper surface[1]. Pulsed heating is one of the limits on the gradient of a structure based linac. The heat generated by an intense RF pulse on the metal surface can result in hundreds of degrees of temperature rise at 1 GeV/m. After a certain number of cycles, the metal may crack due to thermal fatigue and the surface properties m...
متن کاملRefining a relativistic, hydrodynamic solver: Admitting ultra-relativistic flows
We have undertaken the simulation of hydrodynamic flows with bulk Lorentz factors in the range 10–10. We discuss the application of an existing relativistic, hydrodynamic primitive-variable recovery algorithm to a study of pulsar winds, and, in particular, the refinement made to admit such ultra-relativistic flows. We show that an iterative quartic root finder breaks down for Lorentz factors ab...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Applied Physics
سال: 2003
ISSN: 0021-4922,1347-4065
DOI: 10.1143/jjap.42.5280