21 citations · 27 across the 7 of their papers we have counts for
7 papers
Shape matters: Body dynamics underlies efficient jumping
Marc Suñé, Lucas Selva, Cristóbal Arratia +2
Many small animals, particularly insects, use power-amplification to generate rapid motions, such as jumping, that would otherwise be impossible given the standard power density of…
The destabilizing effect of particle concentration in inclined settlers
Cristian Reyes, Cristobal Arratia, Christian Ihle
Water scarcity has required constant water recycling, leading to a decline in water quality, further exacerbated by high concentrations of fine particles that reduce the efficiency…
Structure Preserving Restarts of the Non-Symmetric Lanczos Algorithm via the Implicitly shifted LR algorithm
Prabal S. Negi, Cristobal Arratia
The implicitly shifted QR iteration is used as a restart procedure for the Arnoldi method for the calculation of a few dominant eigenvalues of a large matrix. We show that the unde…
Wrinkling composite sheets
Marc Suñé, Cristóbal Arratia, A. F. Bonfils +2
We examine the buckling shape and critical compression of confined inhomogeneous composite sheets lying on a liquid foundation. The buckling modes are controlled by the bending sti…
A review on steeply inclined settlers for water clarification
Cristian Reyes, Fernando Apaz, Yarko Niño +3
Steeply inclined settlers (SIS) are solid-liquid separators that feature close, inclined confining elements that allow significant settling enhancement when compared to vertical ta…
A geometric decomposition of real diagonalizable matrices with complex eigenvalues
Cristobal Arratia
For any real diagonalizable matrix with complex eigenvalues we provide a real, coordinate free decomposition with a clear geometric interpretation.
Absolute/convective secondary instabilities and the role of confinement in free shear layers
Cristobal Arratia, Saviz Mowlavi, Francois Gallaire
Mixing layers can grow in time or space by vortex pairings that succeed each other in a nearly self-similar way. We use a point vortex model to study how confinement eventually lim…