33 citations · 105 across the 9 of their papers we have counts for
9 papers
Lee-Wave Energy Sinks in Bottom-Intensified Flow: Reabsorption, Dissipation and Nonlinear Spectral Transfer
Yue Cynthia Wu, Eric Kunze, Amit Tandon +1
Idealized numerical simulation is used to explore energy sinks for lee waves trapped in their bottom-intensified generating flow. In addition to the loss to explicit dissipation an…
Lagrangian surface signatures reveal upper-ocean vertical displacement conduits near oceanic density fronts
H. M. Aravind, Vicky Verma, Sutanu Sarkar +5
Vertical transport in the ocean plays a critical role in the exchange of freshwater, heat, nutrients, and other biogeochemical tracers. While there are situations where vertical fl…
Seagrass deformation affects fluid instability and tracer exchange in canopy flow
Guilherme S. Vieira, Michael R. Allshouse, Amala Mahadevan
Monami is the synchronous waving of a submerged seagrass bed in response to unidirectional fluid flow. Here we develop a multiphase model for the dynamical instabilities and flow-d…
Oceanic frontal divergence alters phytoplankton competition and distribution
Abigail Plummer, Mara Freilich, Roberto Benzi +5
Ecological interactions among phytoplankton occur in a moving fluid environment. Oceanic flows can modulate the competition and coexistence between phytoplankton populations, which…
Diversity of growth rates maximizes phytoplankton productivity in an eddying ocean
Mara Freilich, Glenn Flierl, Amala Mahadevan
In the subtropical gyres, phytoplankton rely on eddies for transporting nutrients from depth to the euphotic zone. But, what controls the rate of nutrient supply for new production…
Flow-driven branching in a frangible porous medium
Nicholas J. Derr, David C. Fronk, Christoph A. Weber +3
Channel formation and branching is widely seen in physical systems where movement of fluid through a porous structure causes the spatiotemporal evolution of the medium in response…
Sustenance of phytoplankton in the subpolar North Atlantic during the winter through patchiness
Farid Karimpour, Amit Tandon, Amala Mahadevan
This study investigates the influence of two factors that change the mixed layer depth and can potentially contribute to the phytoplankton sustenance over winter: 1) variability of…
Monami as an oscillatory hydrodynamic instability in a submerged sea grass bed
Ravi Singh, M. M. Bandi, Amala Mahadevan +1
The onset of monami ~-- the synchronous waving of sea grass beds driven by a steady flow -- is modeled as a linear instability of the flow. Unlike previous works, our model conside…
Flow-induced channelization in a porous medium
Amala Mahadevan, L. Mahadevan
We propose a theory for erosional channelization induced by fluid flow in a saturated granular porous medium. When the local fluid flow-induced stress is larger than a critical thr…