منابع مشابه
The hydrodynamics of contact of a marine larva, Bugula neritina, with a cylinder.
Marine larvae are often considered as drifters that collide with larval collectors as passive particles. The trajectories of Bugula neritina larvae and of polystyrene beads were recorded in the velocity field of a vertical cylinder. The experiments illustrated that the trajectories of larvae and of beads may differ markedly. By considering a larva as a self-propelled mechanical microswimmer, a ...
متن کاملA harmonic polynomial cell (HPC) method for 3D Laplace equation with application in marine hydrodynamics
We propose a new efficient and accurate numerical method based on harmonic polynomials to solve boundary value problems governed by 3D Laplace equation. The computational domain is discretized by overlapping cells. Within each cell, the velocity potential is represented by the linear superposition of a complete set of harmonic polynomials, which are the elementary solutions of Laplace equation....
متن کاملMathematical Hydrodynamics
NSS is quite rigid. The only natural parameters are the viscosity ν > 0 and the external forces f(x, t) which may be random. By this reason the analysis of (1), (2) is usually very difficult. The problem of turbulence can be formulated as a problem of asymptotic regimes of solutions of NSS as ν → 0. We believe that some of the methods and results which we shall discuss below can be useful for t...
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The Higgs vacuum – with its constant background field – is not ‘empty’ but is a kind of medium. Any ordinary medium, viewed at sufficiently long length scales, has a hydrodynamic description and can propagate sound waves. The vacuum medium is unusual; the speed of sound is formally infinite and there is no linear sound-wave regime. Instead, long-wavelength disturbances are described by some int...
متن کاملNanoflow hydrodynamics.
We show by nonequilibrium molecular dynamics simulations that the Navier-Stokes equation does not correctly describe water flow in a nanoscale geometry. It is argued that this failure reflects the fact that the coupling between the intrinsic rotational and translational degrees of freedom becomes important for nanoflows. The coupling is correctly accounted for by the extended Navier-Stokes equa...
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ژورنال
عنوان ژورنال: Journal of Applied Mechanics
سال: 1978
ISSN: 0021-8936,1528-9036
DOI: 10.1115/1.3424341