Issues in computational fluid dynamics code verification and validation

Verification and validation (V&V) are the primary means to assess the accuracy and reliability in computational fluid dynamics (CFD) simulation. V&V of the multi-medium detonation CFD model is conducted by using our independently-developed software --- Lagrangian adaptive hydrodynamics code in the 2D space (LAD2D) as well as a large number of benchmark testing models. Specifically, the verification of computational model is based on the basic theory of the computational scheme and mathematical physics equations, and validation of the physical model is accomplished by comparing the numerical solution with the experimental data. Finally, some suggestions are given about V&V of the detonation CFD model.

Download Full-text

Computational fluid dynamics (CFD) prediction of bank effects including verification and validation

Journal of Marine Science and Technology ◽

10.1007/s00773-012-0209-7 ◽

2013 ◽

Vol 18 (3) ◽

pp. 310-323 ◽

Cited By ~ 17

Author(s):

Lu Zou ◽

Lars Larsson

Keyword(s):

Fluid Dynamics ◽

Computational Fluid Dynamics ◽

Verification And Validation ◽

Computational Fluid Dynamics Cfd ◽

Bank Effects

Download Full-text

Verification and Validation in Computational Fluid Dynamics and Heat Transfer Using Experimental Uncertainty Analysis Concepts

Heat Transfer: Volume 3 ◽

10.1115/ht2005-72800 ◽

2005 ◽

Author(s):

Hugh W. Coleman

Keyword(s):

Heat Transfer ◽

Fluid Dynamics ◽

Computational Fluid Dynamics ◽

Uncertainty Analysis ◽

Performance Test ◽

Verification And Validation ◽

Experimental Uncertainty ◽

Uncertainty In Measurement ◽

American Society ◽

Expression Of Uncertainty

An approach to verification and validation (V&V) using experimental uncertainty analysis concepts to quantify the result of a validation effort is discussed. This is the approach to V&V being drafted by the American Society of Mechanical Engineers (ASME) Performance Test Code Committee, PTC 61: Verification and Validation in Computational Fluid Dynamics and Heat Transfer. The charter of the committee is “Provides procedures for quantifying the accuracy of modeling and simulation in computational fluid dynamics and heat transfer.” The committee is initially focusing its efforts on drafting a standard for V&V in computational fluid dynamics and heat transfer based on the concepts and methods of experimental uncertainty analysis. This will leverage the decades of effort in the community of experimentalists that resulted in the ASME Standard PTC 19.1 “Test Uncertainty” and the ISO international standard “Guide to the Expression of Uncertainty in Measurement.”

Download Full-text

Verification and Validation in Computational Fluid Dynamics and Heat Transfer: PTC 61

ASME 2006 Power Conference ◽

10.1115/power2006-88166 ◽

2006 ◽

Author(s):

Christopher J. Freitas

Keyword(s):

Heat Transfer ◽

Fluid Dynamics ◽

Computational Fluid Dynamics ◽

Performance Test ◽

Verification And Validation ◽

Experimental Uncertainty ◽

Uncertainty In Measurement ◽

The Status ◽

Primary Focus ◽

Expression Of Uncertainty

ASME Codes and Standards created a new Performance Test Code Committee in May of 2004, whose primary focus is on the formalization of an approach to the process for verification and validation in computational fluid dynamics and heat transfer. PTC-61 has as its charter to provide “procedures for quantifying the accuracy of modeling and simulation in computational fluid dynamics and heat transfer.” The committee is initially focusing on an approach based on the concepts and methods of experimental uncertainty analysis. This will leverage the decades of development in the community of experimentalists that resulted in the ASME Standard PTC 19.1 “Test Uncertainty” and the ISO international standard “Guide to the Expression of Uncertainty in Measurement.” This paper provides a brief summary of the status of the PTC-61 effort to develop a standard for V&V.

Download Full-text