{ "id": "1706.04060", "version": "v1", "published": "2017-06-09T21:02:37.000Z", "updated": "2017-06-09T21:02:37.000Z", "title": "A second-order time-stepping scheme for simulating ensembles of parameterized flow problems", "authors": [ "Max Gunzburger", "Nan Jiang", "Zhu Wang" ], "comment": "arXiv admin note: text overlap with arXiv:1705.09350", "categories": [ "math.NA" ], "abstract": "We consider settings for which one needs to perform multiple flow simulations based on the Navier-Stokes equations, each having different values for the physical parameters and/or different initial condition data, boundary conditions data, and/or forcing functions. For such settings, we propose a second-order time accurate ensemble-based method that to simulate the whole set of solutions, requires, at each time step, the solution of only a single linear system with multiple right-hand-side vectors. Rigorous analyses are given proving the conditional stability and error estimates for the proposed algorithm. Numerical experiments are provided that illustrate the analyses.", "revisions": [ { "version": "v1", "updated": "2017-06-09T21:02:37.000Z" } ], "analyses": { "keywords": [ "parameterized flow problems", "second-order time-stepping scheme", "simulating ensembles", "perform multiple flow simulations", "second-order time accurate ensemble-based method" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }