skip to main content

Title: GAS CURTAIN EXPERIMENTAL TECHNIQUE AND ANALYSIS METHODOLOGIES

The qualitative and quantitative relationship of numerical simulation to the physical phenomena being modeled is of paramount importance in computational physics. If the phenomena are dominated by irregular (i. e., nonsmooth or disordered) behavior, then pointwise comparisons cannot be made and statistical measures are required. The problem we consider is the gas curtain Richtmyer-Meshkov (RM) instability experiments of Rightley et al. (13), which exhibit complicated, disordered motion. We examine four spectral analysis methods for quantifying the experimental data and computed results: Fourier analysis, structure functions, fractal analysis, and continuous wavelet transforms. We investigate the applicability of these methods for quantifying the details of fluid mixing.
Authors:
;
Publication Date:
OSTI Identifier:
773829
Report Number(s):
LA-UR-01-497
TRN: US200611%%436
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 10th International Conference on Computational Methods and Experimental Measurements, 4-6 June 2001, Alicante, Spain
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FOURIER ANALYSIS; FRACTALS; INSTABILITY; PHYSICS; SIMULATION; STRUCTURE FUNCTIONS