activeBarriers computes material active barriers to the transport of momentum and vorticity for flows defined on a three-dimensional cartesian grid
This repository is the reference implementation of the active barriers for a turbulent channel described in
Haller, G., Katsanoulis, S., Holzner, M., Frohnapfel, B., & Gatti, D. (2020). "Objective barriers to the transport of dynamically active vector fields" Journal of Fluid Mechanics, 905, A17. doi:10.1017/jfm.2020.737
The computation is divided in two steps, each of them provided as a separate program:
- barrierField.cpl: the computation of the three-dimensional active barrier field from velocity data
- ftle.cpl: computation of aFTLE/aPRA diagnostic for the active barrier field
Dr. Davide Gatti
davide.gatti [at] kit.edu
Karlsruhe Institute of Technology
Institute of Fluid Dynamics
Kaiserstraße 10
76131 Karlsruhe
If you use this code and find it helpful, please cite:
Haller, G., Katsanoulis, S., Holzner, M., Frohnapfel, B., & Gatti, D. (2020). "Objective barriers to the transport of dynamically active vector fields" Journal of Fluid Mechanics, 905, A17. doi:10.1017/jfm.2020.737