Latin hypercube sampling for uncertainty analysis in multiphase modelling. Issue 6 (3rd November 2008)

• Record Type: Journal Article
• Authors: Lye, L M
• Is Part Of: Journal of environmental engineering and science. Volume 7:Issue 6(2008)
• Page Start: 617
• Page End: 626
• Publication Date: 2008-11-03
• Subjects: latin hypercube sampling; -- multi-component; -- multiphase; -- sample size; -- uncertainty analysis; -- MOFAT; -- Monte Carlo; Environmental engineering -- Periodicals; Sanitary engineering -- Periodicals; Environmental engineering -- Canada -- Periodicals; Environnement, Technique de l' -- Périodiques; Technique sanitaire -- Périodiques; Environnement, Technique de l' -- Canada -- Périodiques; Environmental engineering; Sanitary engineering; Canada; Electronic journals; Computer network resources; Periodicals; 628.05
• DOI: 10.1139/S08-031
• Languages: English
• ISSNs: 1496-2551

Abstract

Abstract : To facilitate the uncertainty analysis of a finite element multiphase multi-component transport model MOFAT, this paper provides guidance on latin hypercube sampling Monte Carlo (LHS-MC) sample size selection. To evaluate the ability of LHS-MC to produce output cumulative distribution functions (cdfs) that replicate random sampling Monte Carlo (RS-MC) cdfs, output cdfs obtained with LHS-MC sample sizes of 100, 300, and 500, and a RS-MC sample size of 10 000 are compared using the two sample Kolmogorov-Smirnov test. The LHS-MC cdfs for the three different sample sizes are able to accurately replicate the corresponding RS-MC cdfs for benzene, toluene, ethylbenzene, and xylene (BTEX) concentrations in the water, gas, and solid phases. The stability of LHS-MC is also evaluated by comparing three replicates of a LHS-MC sample. The three replicates are all able to accurately replicate the corresponding RS-MC cdfs for all BTEX concentrations in all three phases.