Search
Now showing items 131-140 of 302
Nonlinear hydrodynamical evolution of eccentric Keplerian discs in two dimensions: validation of secular theory
(Oxford University PressMonthly Notices of the Royal Astronomical Society, 2016-03-11)
We perform global two-dimensional hydrodynamical simulations of Keplerian discs with free eccentricity over thousands of orbital periods. Our aim is to determine the validity of secular theory in describing the evolution ...
Characterization of Early Cortical Neural Network Development in Multiwell Microelectrode Array Plates
(SAGE PublicationsJournal of Biomolecular Screening, 2016-03-29)
We examined neural network ontogeny using microelectrode array (MEA) recordings made in multiwell MEA (mwMEA) plates over the first 12 days in vitro (DIV). In primary cortical cultures, action potential spiking activity ...
Obstructed and channelized viscoplastic flow in a Hele-Shaw cell
(Cambridge University PressJournal of Fluid Mechanics, 2016-02-02)
A theoretical study is presented of the flow of viscoplastic fluid through a Hele-Shaw cell that contains various kinds of obstructions. Circular and elliptical blockages of the cell are considered together with stepwise ...
Flow-induced compaction of a deformable porous medium
(American Physical SocietyPhysical Review E, 2016-02-24)
Fluid flowing through a deformable porous medium imparts viscous drag on the solid matrix, causing it to deform. This effect is investigated theoretically and experimentally in a one-dimensional configuration. The experiments ...
Bacterial Hydrodynamics
(Annual ReviewsAnnual Review of Fluid Mechanics, 2016)
Bacteria predate plants and animals by billions of years. Today, they are the
world’s smallest cells, yet they represent the bulk of the world’s biomass
and the main reservoir of nutrients for higher organisms. Most bacteria ...
Twisting algebraically special solutions in five dimensions
(Institute of PhysicsClassical and Quantum Gravity, 2016)
We determine the general form of the solutions of the five-dimensional vacuum Einstein equations with cosmological constant for which (i) the Weyl tensor is everywhere type II or more special in the null alignment ...
Nonlinear tides in a homogeneous rotating planet or star: global modes and elliptical instability
(Oxford University PressMonthly Notices of the Royal Astronomical Society, 2016-03-28)
We revisit the global modes and instabilities of homogeneous rotating ellipsoidal fluid masses, which are the simplest global models of rotationally and tidally deformed gaseous planets or stars. The tidal flow in a ...
Nonlinear tides in a homogeneous rotating planet or star: global simulations of the elliptical instability
(Oxford University PressMonthly Notices of the Royal Astronomical Society, 2016)
I present results from the first global hydrodynamical simulations of the elliptical instability in a tidally deformed gaseous planet (or star) with a free surface. The elliptical instability is potentially important for ...
Small acoustically forced symmetric bodies in viscous fluids
(American Institute of PhysicsJournal of the Acoustical Society of America, 2016-03-03)
The total force exerted on a small rigid body by an acoustic field in a viscous fluid is addressed analytically in the limit where the typical size of the particle is smaller than both the viscous diffusion length scale ...
A squirmer across Reynolds numbers
(Cambridge University PressJournal of Fluid Mechanics, 2016)
The self-propulsion of a spherical squirmer - a model swimming organism that achieves locomotion via steady tangential movement of its surface - is quantified across the transition from viscously to inertially dominated ...