A Second-Order Time-Stepping Scheme for Simulating Ensembles of Parameterized Flow Problems
Journal Article
·
· Computational Methods in Applied Mathematics
- DOE/OSTI
Abstract
We consider settings for which one needs to perform multiple flow simulations based on the Navier–Stokes equations, each having different initial condition data, boundary condition data, forcing functions, and/or coefficients such as the viscosity. 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 establishing error estimates for the proposed algorithm. Numerical experiments are provided that illustrate the analyses.
- Research Organization:
- Florida State Univ., Tallahassee, FL (United States); Univ. of South Carolina, Columbia, SC (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- SC0009324; SC0016540
- OSTI ID:
- 1611200
- Journal Information:
- Computational Methods in Applied Mathematics, Journal Name: Computational Methods in Applied Mathematics Journal Issue: 3 Vol. 19; ISSN 1609-4840
- Publisher:
- de Gruyter
- Country of Publication:
- United States
- Language:
- English
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