{ "id": "2203.04728", "version": "v1", "published": "2022-03-09T14:07:45.000Z", "updated": "2022-03-09T14:07:45.000Z", "title": "Dynamic mode decomposition as an analysis tool for time-dependent partial differential equations", "authors": [ "Miha Rot", "Martin Horvat", "Gregor Kosec" ], "comment": "6 pages, 8 figures", "categories": [ "math.NA", "cs.NA", "math.DS", "physics.data-an" ], "abstract": "The time-dependent fields obtained by solving partial differential equations in two and more dimensions quickly overwhelm the analytical capabilities of the human brain. A meaningful insight into the temporal behaviour can be obtained by using scalar reductions, which, however, come with a loss of spatial detail. Dynamic Mode Decomposition is a data-driven analysis method that solves this problem by identifying oscillating spatial structures and their corresponding frequencies. This paper presents the algorithm and provides a physical interpretation of the results by applying the decomposition method to a series of increasingly complex examples.", "revisions": [ { "version": "v1", "updated": "2022-03-09T14:07:45.000Z" } ], "analyses": { "keywords": [ "time-dependent partial differential equations", "dynamic mode decomposition", "analysis tool", "solving partial differential equations", "data-driven analysis method" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }