Keywords
Turbulence, Numerical simulation, Mesh adaption, Multiscale methods
Abstract
One-Dimensional Turbulence (ODT) is a stochastic model for turbulent flow simulation. In an atmospheric context, it is analogous to single-column modeling (SCM) in that it lives on a 1D spatial domain, but different in that it time advances individual flow realizations rather than ensemble-averaged quantities. The lack of averaging enables a physically sound multiscale treatment, which is useful for resolving sporadic localized phenomena, as seen in stably stratified regimes, and sharp interfaces, as observed where a convective layer encounters a stable overlying zone. In such flows, the relevant scale range is so large that it is beneficial to enhance model performance by introducing an adaptive mesh. An adaptive-mesh algorithm that provides the desired performance characteristics is described and demonstrated, and its implications for the ODT advancement scheme are explained.
Original Publication Citation
Lignell, D.O., Kerstein, A.R., Sun, G. et al. Mesh adaption for efficient multiscale implementation of one-dimensional turbulence. Theor. Comput. Fluid Dyn. 27, 273–295 (2013). https://doi.org/10.1007/s00162-012-0267-9
BYU ScholarsArchive Citation
Lignell, D. O.; Kerstein, A. R.; Sun, G.; and Monson, E. I., "Mesh adaption for efficient multiscale implementation of one-dimensional turbulence" (2012). Faculty Publications. 8056.
https://scholarsarchive.byu.edu/facpub/8056
Document Type
Peer-Reviewed Article
Publication Date
2012-04-29
Publisher
Springer Nature
Language
English
College
Ira A. Fulton College of Engineering
Department
Chemical Engineering
Copyright Status
© Springer-Verlag 2012. This is the author's accepted version of this article. The definitive version can be found at https://doi.org/10.1007/s00162-012-0267-9.
Copyright Use Information
https://lib.byu.edu/about/copyright/