منابع مشابه
Bow Shocks around Pulsars and Neutron Stars
Pulsar wind nebulae are now well established as important probes both of neutron stars’ relativistic winds and of the surrounding interstellar medium. Amongst this diverse group of objects, pulsar bow shocks have long been regarded as an oddity, only seen around a handful of rapidly moving neutron stars. However, recent efforts at optical, radio and X-ray wavelengths have identified many new pu...
متن کاملExperimental Observation of Flow Fields Around Active Janus Spheres
Andrew I. Campbell, Stephen J. Ebbens, ∗ Pierre Illien, 3, 4 and Ramin Golestanian † Department of Chemical and Biological Engineering, University of Sheffield Mappin Street, Sheffield S1 3JD, UK Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3NP, UK Max Planck Institute for the Physics of Complex Systems, Nothnitzer Str. 8, 01187 Dresden, Germany ESPCI Paris, U...
متن کاملComplex magnetohydrodynamic bow shock topology in field-aligned low-b flow around a perfectly conducting cylinder
Two-dimensional ideal magnetohydrodynamic ~MHD! simulations are presented that demonstrate several novel phenomena in MHD shock formation. The stationary symmetrical flow of a uniform, planar, field-aligned, low-b and superfast magnetized plasma around a perfectly conducting cylinder is calculated. The velocity of the incoming flow is chosen such that the formation of fast switch-on shocks is p...
متن کاملComputing Flows Around Microorganisms: Slender-Body Theory and Beyond
We present the mathematical framework that governs the interaction of a forcegenerating microorganism with a surrounding viscous fluid. We review slender-body theories that have been used to study flagellar motility, along with the method of regularized Stokeslets. We investigate the role of a dinoflagellate transverse flagellum as well as the flow structures near a choanoflagellate.
متن کاملNumerical simulations of wave breakings around a wedge- shaped bow
Flows around a wedge-shaped bow are simulated with the aim of investigating the wave breaking mechanism and small scale features of ship bow waves. The wedge geometry used in the experimental study of Waniewski et al. (2002) is chosen with the flow conditions at Re = 1.64×10 5 and Fr = 2.93. The bow wave structure, wave breaking process and air entrainment are studied. The predicted overall bow...
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ژورنال
عنوان ژورنال: JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN
سال: 1989
ISSN: 1884-0361,0287-3605
DOI: 10.3154/jvs1981.9.165