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Title: Independent verification and validation testing of the FLASH computer code, Versiion 3. 0

Abstract

Independent testing of the FLASH computer code, Version 3.0, was conducted to determine if the code is ready for use in hydrological and environmental studies at various Department of Energy sites. This report describes the technical basis, approach, and results of this testing. Verification tests, and validation tests, were used to determine the operational status of the FLASH computer code. These tests were specifically designed to test: correctness of the FORTRAN coding, computational accuracy, and suitability to simulating actual hydrologic conditions. This testing was performed using a structured evaluation protocol which consisted of: blind testing, independent applications, and graduated difficulty of test cases. Both quantitative and qualitative testing was performed through evaluating relative root mean square values and graphical comparisons of the numerical, analytical, and experimental data. Four verification test were used to check the computational accuracy and correctness of the FORTRAN coding, and three validation tests were used to check the suitability to simulating actual conditions. These tests cases ranged in complexity from simple 1-D saturated flow to 2-D variably saturated problems. The verification tests showed excellent quantitative agreement between the FLASH results and analytical solutions. The validation tests showed good qualitative agreement with the experimental data. Based onmore » the results of this testing, it was concluded that the FLASH code is a versatile and powerful two-dimensional analysis tool for fluid flow. In conclusion, all aspects of the code that were tested, except for the unit gradient bottom boundary condition, were found to be fully operational and ready for use in hydrological and environmental studies.« less

Authors:
;  [1]
  1. Washington State Univ., Pullman, WA (United States). Dept. of Mechanical and Materials Engineering
Publication Date:
Research Org.:
EG and G Idaho, Inc., Idaho Falls, ID (United States); Washington State Univ., Pullman, WA (United States). Dept. of Mechanical and Materials Engineering
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
7288831
Report Number(s):
EGG-GEO-10330
ON: DE92019768
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 42 ENGINEERING; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; F CODES; VALIDATION; VERIFICATION; FLUID FLOW; GROUND WATER; FORTRAN; TESTING; TWO-DIMENSIONAL CALCULATIONS; COMPUTER CODES; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; PROGRAMMING LANGUAGES; WATER; 540210* - Environment, Terrestrial- Basic Studies- (1990-); 420400 - Engineering- Heat Transfer & Fluid Flow; 990200 - Mathematics & Computers

Citation Formats

Martian, P, and Chung, J N. Independent verification and validation testing of the FLASH computer code, Versiion 3. 0. United States: N. p., 1992. Web. doi:10.2172/7288831.
Martian, P, & Chung, J N. Independent verification and validation testing of the FLASH computer code, Versiion 3. 0. United States. doi:10.2172/7288831.
Martian, P, and Chung, J N. Mon . "Independent verification and validation testing of the FLASH computer code, Versiion 3. 0". United States. doi:10.2172/7288831. https://www.osti.gov/servlets/purl/7288831.
@article{osti_7288831,
title = {Independent verification and validation testing of the FLASH computer code, Versiion 3. 0},
author = {Martian, P and Chung, J N},
abstractNote = {Independent testing of the FLASH computer code, Version 3.0, was conducted to determine if the code is ready for use in hydrological and environmental studies at various Department of Energy sites. This report describes the technical basis, approach, and results of this testing. Verification tests, and validation tests, were used to determine the operational status of the FLASH computer code. These tests were specifically designed to test: correctness of the FORTRAN coding, computational accuracy, and suitability to simulating actual hydrologic conditions. This testing was performed using a structured evaluation protocol which consisted of: blind testing, independent applications, and graduated difficulty of test cases. Both quantitative and qualitative testing was performed through evaluating relative root mean square values and graphical comparisons of the numerical, analytical, and experimental data. Four verification test were used to check the computational accuracy and correctness of the FORTRAN coding, and three validation tests were used to check the suitability to simulating actual conditions. These tests cases ranged in complexity from simple 1-D saturated flow to 2-D variably saturated problems. The verification tests showed excellent quantitative agreement between the FLASH results and analytical solutions. The validation tests showed good qualitative agreement with the experimental data. Based on the results of this testing, it was concluded that the FLASH code is a versatile and powerful two-dimensional analysis tool for fluid flow. In conclusion, all aspects of the code that were tested, except for the unit gradient bottom boundary condition, were found to be fully operational and ready for use in hydrological and environmental studies.},
doi = {10.2172/7288831},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {6}
}