Part 2 of this two-part paper provides an example case study following the recently developed comprehensive verification and validation approach presented in Part 1. The case study is for a RANS simulation of an established benchmark for ship hydrodynamics using a ship hydrodynamics CFD code. Verification of the resistance (integral variable) and wave profile (point variable) indicates iterative uncertainties much less than grid uncertainties and simulation numerical uncertainties of about is the simulation value for the finest grid). Validation of the resistance and wave profile shows modeling errors of about (D is the measured resistance) and is the maximum wave elevation), which should be addressed for possible validation at the and levels. Reducing the level of validation primarily requires reduction in experimental uncertainties. The reduction of both modeling errors and experimental uncertainties will produce verified and validated solutions at low levels for this application using the present CFD code. Although there are many issues for practical applications, the methodology and procedures are shown to be successful for assessing levels of verification and validation and identifying modeling errors in some cases. For practical applications, solutions are far from the asymptotic range; therefore, analysis and interpretation of the results are shown to be important in assessing variability for order of accuracy, levels of verification, and strategies for reducing numerical and modeling errors and uncertainties.
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December 2001
Technical Papers
Comprehensive Approach to Verification and Validation of CFD Simulations—Part 2: Application for Rans Simulation of a Cargo/Container Ship
Robert V. Wilson, Assistant Research Engineer, Mem. ASME,
Robert V. Wilson, Assistant Research Engineer, Mem. ASME
Iowa Institute Hydraulic Research, Department Mechanical Engineering, The University of Iowa, Iowa City, IA 52242
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Fred Stern, Professor Mechanical Engineering and Research Engineer, Fellow ASME,
Fred Stern, Professor Mechanical Engineering and Research Engineer, Fellow ASME
Iowa Institute Hydraulic Research, Department Mechanical Engineering, The University of Iowa, Iowa City, IA 52242
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Hugh W. Coleman, Fellow ASME, Eminent Scholar in Propulsion, Professor of Mechanical Engineering,,
Hugh W. Coleman, Fellow ASME, Eminent Scholar in Propulsion, Professor of Mechanical Engineering,
Propulsion Research Center, Mechanical and Aerospace Engineering Department, University of Alabama in Huntsville, Huntsville, AL 35899
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Eric G. Paterson, Mem. ASME, Associate Research Engineer,
Eric G. Paterson, Mem. ASME, Associate Research Engineer,
Iowa Institute Hydraulic Research, The University of Iowa, Iowa City, IA 52242
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Robert V. Wilson, Assistant Research Engineer, Mem. ASME
Iowa Institute Hydraulic Research, Department Mechanical Engineering, The University of Iowa, Iowa City, IA 52242
Fred Stern, Professor Mechanical Engineering and Research Engineer, Fellow ASME
Iowa Institute Hydraulic Research, Department Mechanical Engineering, The University of Iowa, Iowa City, IA 52242
Hugh W. Coleman, Fellow ASME, Eminent Scholar in Propulsion, Professor of Mechanical Engineering,
Propulsion Research Center, Mechanical and Aerospace Engineering Department, University of Alabama in Huntsville, Huntsville, AL 35899
Eric G. Paterson, Mem. ASME, Associate Research Engineer,
Iowa Institute Hydraulic Research, The University of Iowa, Iowa City, IA 52242
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division November 4, 1999; revised manuscript received July 10, 2001. Associate Editor: P. E. Raad.
J. Fluids Eng. Dec 2001, 123(4): 803-810 (8 pages)
Published Online: July 10, 2001
Article history
Received:
November 4, 1999
Revised:
July 10, 2001
Citation
Wilson, R. V., Stern, F., Coleman, H. W., and Paterson, E. G. (July 10, 2001). "Comprehensive Approach to Verification and Validation of CFD Simulations—Part 2: Application for Rans Simulation of a Cargo/Container Ship ." ASME. J. Fluids Eng. December 2001; 123(4): 803–810. https://doi.org/10.1115/1.1412236
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