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Title: Probability density adjoint for sensitivity analysis of the Mean of Chaos

Abstract

Sensitivity analysis, especially adjoint based sensitivity analysis, is a powerful tool for engineering design which allows for the efficient computation of sensitivities with respect to many parameters. However, these methods break down when used to compute sensitivities of long-time averaged quantities in chaotic dynamical systems. This paper presents a new method for sensitivity analysis of ergodic chaotic dynamical systems, the density adjoint method. The method involves solving the governing equations for the system's invariant measure and its adjoint on the system's attractor manifold rather than in phase-space. This new approach is derived for and demonstrated on one-dimensional chaotic maps and the three-dimensional Lorenz system. It is found that the density adjoint computes very finely detailed adjoint distributions and accurate sensitivities, but suffers from large computational costs.

Authors:
Publication Date:
OSTI Identifier:
22314887
Resource Type:
Journal Article
Journal Name:
Journal of Computational Physics
Additional Journal Information:
Journal Volume: 270; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9991
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATTRACTORS; CALCULATION METHODS; CHAOS THEORY; ONE-DIMENSIONAL CALCULATIONS; PHASE SPACE; PROBABILITY; SENSITIVITY ANALYSIS; THREE-DIMENSIONAL CALCULATIONS

Citation Formats

Blonigan, Patrick J., E-mail: blonigan@mit.edu, and Wang, Qiqi. Probability density adjoint for sensitivity analysis of the Mean of Chaos. United States: N. p., 2014. Web. doi:10.1016/J.JCP.2014.04.027.
Blonigan, Patrick J., E-mail: blonigan@mit.edu, & Wang, Qiqi. Probability density adjoint for sensitivity analysis of the Mean of Chaos. United States. https://doi.org/10.1016/J.JCP.2014.04.027
Blonigan, Patrick J., E-mail: blonigan@mit.edu, and Wang, Qiqi. 2014. "Probability density adjoint for sensitivity analysis of the Mean of Chaos". United States. https://doi.org/10.1016/J.JCP.2014.04.027.
@article{osti_22314887,
title = {Probability density adjoint for sensitivity analysis of the Mean of Chaos},
author = {Blonigan, Patrick J., E-mail: blonigan@mit.edu and Wang, Qiqi},
abstractNote = {Sensitivity analysis, especially adjoint based sensitivity analysis, is a powerful tool for engineering design which allows for the efficient computation of sensitivities with respect to many parameters. However, these methods break down when used to compute sensitivities of long-time averaged quantities in chaotic dynamical systems. This paper presents a new method for sensitivity analysis of ergodic chaotic dynamical systems, the density adjoint method. The method involves solving the governing equations for the system's invariant measure and its adjoint on the system's attractor manifold rather than in phase-space. This new approach is derived for and demonstrated on one-dimensional chaotic maps and the three-dimensional Lorenz system. It is found that the density adjoint computes very finely detailed adjoint distributions and accurate sensitivities, but suffers from large computational costs.},
doi = {10.1016/J.JCP.2014.04.027},
url = {https://www.osti.gov/biblio/22314887}, journal = {Journal of Computational Physics},
issn = {0021-9991},
number = ,
volume = 270,
place = {United States},
year = {Fri Aug 01 00:00:00 EDT 2014},
month = {Fri Aug 01 00:00:00 EDT 2014}
}