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A fourth-order adaptive mesh refinement algorithm for the multicomponent, reacting compressible Navier–Stokes equations.
- Source :
-
Combustion Theory & Modelling . Aug2019, Vol. 23 Issue 4, p592-625. 34p. - Publication Year :
- 2019
-
Abstract
- In this paper, we present a fourth-order in space and time block-structured adaptive mesh refinement algorithm for the compressible multicomponent reacting Navier–Stokes equations. The algorithm uses a finite-volume approach that incorporates a fourth-order discretisation of the convective terms. The time-stepping algorithm is based on a multi-level spectral deferred corrections method that enables explicit treatment of advection and diffusion coupled with an implicit treatment of reactions. The temporal scheme is embedded in a block-structured adaptive mesh refinement algorithm that includes subcycling in time with spectral deferred correction sweeps applied on levels. Here we present the details of the multi-level scheme paying particular attention to the treatment of coarse–fine boundaries required to maintain fourth-order accuracy in time. We then demonstrate the convergence properties of the algorithm on several test cases including both non-reacting and reacting flows. Finally we present simulations of a vitiated dimethyl ether jet in 2D and a turbulent hydrogen jet in 3D, both with detailed kinetics and transport. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13647830
- Volume :
- 23
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Combustion Theory & Modelling
- Publication Type :
- Academic Journal
- Accession number :
- 137658016
- Full Text :
- https://doi.org/10.1080/13647830.2019.1566574