#### Filter Results:

#### Publication Year

2006

2016

#### Publication Type

#### Co-author

#### Key Phrase

#### Publication Venue

Learn More

- Chad Coulliette, Francois Lekien, Jeffrey D Paduan, George Haller, Jerrold E Marsden
- Environmental science & technology
- 2007

High-frequency (HF) radar technology produces detailed velocity maps near the surface of estuaries and bays. The use of velocity data in environmental prediction, nonetheless, remains unexplored. In this paper, we uncover a striking flow structure in coastal radar observations of Monterey Bay, along the California coastline. This complex structure governs… (More)

Recent developments in identifying Lagrangian coherent structures from finite time velocity data have provided a theoretical basis for understanding chaotic transport in general flows with aperiodic dependence on time. As these theoretical developments are extended and applied to more complex flows, an accurate and general numerical method for computing… (More)

Keywords: Lagrangian coherent structures Mathematical software Non-autonomous dynamical systems Invariant manifolds Mixing Transport barriers Fluid dynamics Ocean surface flows a b s t r a c t We give an algorithmic introduction to Lagrangian coherent structures (LCSs) using a newly developed computational engine, LCS Tool. LCSs are most repelling,… (More)

Recent experimental and numerical observations have shown the significance of the Basset–Boussinesq memory term on the dynamics of small spherical rigid particles (or inertial particles) suspended in an ambient fluid flow. These observations suggest an algebraic decay to an asymptotic state, as opposed to the exponential convergence in the absence of the… (More)

Coherent boundaries of Lagrangian vortices in fluid flows have recently been identified as closed orbits of line fields associated with the Cauchy– Green strain tensor. Here we develop a fully automated procedure for the detection of such closed orbits in large-scale velocity data sets. We illustrate the power of our method on ocean surface velocities… (More)

- Themistoklis Sapsis, Jifeng Peng, George Haller
- Bulletin of mathematical biology
- 2011

We study the dynamics of plankton in the wake of a jellyfish. Using an analytical approach, we derive a reduced-order equation that governs the prey motion which is modeled as neutrally-buoyant inertial particle. This modified equation takes into account both the effects of prey inertia and self-propulsion and enables us to calculate both the attracting and… (More)

- Chad Coulliette, Francois Lekien, Jeffrey Paduan, George Haller, Jerry Marsden
- 2007

High-frequency (HF) radar technology produces detailed velocity maps near the surface of estuaries and bays. The use of velocity data in environmental prediction, nonetheless, remains unexplored. In this paper, we uncover a striking flow structure in coastal radar observations of Monterey Bay, along the California coastline. This complex structure governs… (More)

- ‹
- 1
- ›