ASME_V_V-20_2009.pdf

AN AMERICAN NATIO NAL STANDARDASME V&V 20-2009Standard for Verification and Validation in Computational Fluid Dynamics and Heat TransferCopyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME V&V 20-2009Standard for Verifi cation and Validation in Computational Fluid Dynamics and Heat TransferAN AMERICAN NATIONAL STANDARDCopyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:November 30,2009This Standard will be revised when the Society approves the issuance of a new edition.There will be no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard.Periodically certain actions of the ASME V&V 20 Committee may be published as Cases.Cases and interpretations are published on the ASME Web site under the Committee Pages at http:/cstools.asme.org as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American National Standards.The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate.The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not approve,rate,or endorse any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent,nor assumes any such liability.Users of a code or standard are expressly advised that determination of the validity of any such patent rights,and the risk of infringement of such rights,is entirely their own responsibility.Participation by federal agency representative(s)or person(s)affi liated with industry is not to be interpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2009 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.iiiCONTENTSForeword.viCommittee Roster .viiiCorrespondence With the V&V 20 Committee .ixSection 1 Introduction to Validation Methodology.11-1 General .11-2 Objective and Scope .11-3 Errors and Uncertainties .11-4 Example for Validation Nomenclature and Approach .21-5 Validation Approach .31-6 Overview of Subsequent Sections .51-7 References .5Section 2 Code Verifi cation and Solution Verifi cation.72-1 General .72-2 Introduction .72-3 Code Verifi cation .72-4 Solution Verifi cation .112-5 Special Considerations .162-6 Final Comment .172-7 References .17Section 3 Eff ect of Input Parameter Uncertainty on Simulation Uncertainty .193-1 Introduction .193-2 Sensitivity Coeffi cient(Local)Method for Parameter Uncertainty Propagation .193-3 Sampling(Global)Methods for Parameter Uncertainty Propagation .233-4 Importance Factors .253-5 Special Considerations .253-6 Final Comment on Parameter Uncertainty .263-7 References .26Section 4 Uncertainty of an Experimental Result .274-1 Overview .274-2 Experimental Uncertainty Analysis .274-3 Uncertainty of Validation Experiment .284-4 Summary .284-5 References .28Section 5 Evaluation of Validation Uncertainty .305-1 Overview .305-2 Estimating uval When the Experimental Value,D,of the Validation Variable is Directly Measured(Case 1).305-3 E