학술논문
Rippled shock front solutions for testing hydrodynamic stability simulations
Document Type
Journal Article
Author
Source
Phys Fluids B; (United States); 1:1
Subject
Language
English
Abstract
The response of a shock front to arbitrary small perturbations can be calculated analytically. Such rippled shock front solutions are useful for determining the accuracy of hydrodynamic simulation codes such as LASNEX (Comments Plasma Phys. Controlled Fusion 2, 51 (1977)), which are used to compute perturbation growth in inertial fusion targets. The LASNEX fractional errors are of order kappa/sup 2/L/sup 2/, where kappa is the transverse wavenumber of the perturbation, and L is the largest zone dimension. Numerical errors are about 25% for a calculation using 26 zones per transverse wavelength.