منابع مشابه
Growing waves in drifted plasmas
Self-consistent wave solutions for structures consisting of drifting plasmas and dielectrics are presented and the appearance of growing waves in one of the models is shown. The role of collisions and diffusion is discussed and the direction of future work aimed at devices is indicated. The requirement for velocity matching implies that eventually periodic structures and space harmonics are nee...
متن کاملElectric-field-controlled unpinning of scroll waves.
Three-dimensional excitation vortices exist in systems such as chemical reactions and the human heart. Their one-dimensional rotation backbone can pin to unexcitable heterogeneities, which greatly affect the structure, dynamics, and lifetime of the vortex. In experiments with the Belousov-Zhabotinsky reaction, we demonstrate vortex unpinning from a pair of inert and impermeable spheres using ex...
متن کاملSound radiation from exponentially growing and decaying surface waves
A simplified model problem is used to illustrate some of the parameters controlling the radiation of sound into an ambient medium due to the growth and subsequent decay of subsonic travelling waves, such as may occur via non-linear interactions in turbulent free shear flows. It is shown that substantial sound may be generated by apparently subsonic modes as a result of their growth and decay ch...
متن کاملGrowing Surfactant Waves in Thin Liquid Films Driven by Gravity
The dynamics of a gravity-driven thin film flow with insoluble surfactant are described in the lubrication approximation by a coupled system of nonlinear PDEs. When the total quantity of surfactant is fixed, a traveling wave solution exists. For the case of constant flux of surfactant from an upstream reservoir, global traveling waves no longer exist as the surfactant accumulates at the leading...
متن کاملGrowing Intermediate-Mass Black Holes with Gravitational Waves
Title of Dissertation: Growing Intermediate-Mass Black Holes with Gravitational Waves Kayhan Gültekin, Doctor of Philosophy, 2006 Dissertation directed by: Professor M. Coleman Miller Department of Astronomy We present results of numerical simulations of sequences of binary-single scattering events of black holes in dense stellar environments. The simulations cover a wide range of mass ratios f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Australian Journal of Physics
سال: 1956
ISSN: 0004-9506
DOI: 10.1071/ph560031