Analysis of the Properties of Adjoint Equations and Accuracy Verification of Adjoint Model Based on FVM
Joint Authors
Chen, Yaodeng
Zhang, Ruizhi
Gao, Yufang
Lu, Changna
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-10-27
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
There are two different approaches on how to formulate adjoint numerical model (ANM).
Aiming at the disputes arising from the construction methods of ANM, the differences between nonlinear shallow water equation and its adjoint equation are analyzed; the hyperbolicity and homogeneity of the adjoint equation are discussed.
Then, based on unstructured meshes and finite volume method, a new adjoint model was advanced by getting numerical model of the adjoint equations directly.
Using a gradient check, the correctness of the adjoint model was verified.
The results of twin experiments to invert the bottom friction coefficient (Manning’s roughness coefficient) indicate that the adjoint model can extract the observation information and produce good quality inversion.
The reason of disputes about construction methods of ANM is also discussed in the paper.
American Psychological Association (APA)
Chen, Yaodeng& Zhang, Ruizhi& Gao, Yufang& Lu, Changna. 2014. Analysis of the Properties of Adjoint Equations and Accuracy Verification of Adjoint Model Based on FVM. Abstract and Applied Analysis،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1013876
Modern Language Association (MLA)
Chen, Yaodeng…[et al.]. Analysis of the Properties of Adjoint Equations and Accuracy Verification of Adjoint Model Based on FVM. Abstract and Applied Analysis No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1013876
American Medical Association (AMA)
Chen, Yaodeng& Zhang, Ruizhi& Gao, Yufang& Lu, Changna. Analysis of the Properties of Adjoint Equations and Accuracy Verification of Adjoint Model Based on FVM. Abstract and Applied Analysis. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1013876
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1013876