As these clouds are weakly ionized, the ideal MHD approximation does not apply at scales of around a tenth of a parsec or less. This paper extends the work of Jones & Downes on the evolution of the KelvinHelmholtz instability in the presence of multifluid MHD effects. These effects of ...
Kelvin–Helmholtz instability occurs in the atmosphere as a sporadic, but widespread, phenomenon. It is usually invisible and so can be dangerous asclear air turbulence. But it can be detected by radar or seen by chance as billow clouds when the humidity is such that the rising air in a vo...
[1] Using the very high frequency (46.5 MHz) middle and upper atmosphere radar (MUR), Ka band (35 GHz) and X band (9.8 GHz) weather radars, a Kelvin-Helmholtz (KH) instability occurring at a cloud base and its impact on modulating cloud bottom altitudes are described by a case study...
MagnetospheresSolar windVenusa b s t r a c tThe Kelvin–Helmholtz instability gained scientific attention after observations at Venus by the spacecraftPioneer Venus Orbiter gave rise to speculations that the instability contributes to the loss of planetary ionsthrough the formationof plasma clouds. ...
Figure 4. Separation of cavitation clouds and Kelvin-Helmholtz instability formation (experiment: m·m· = 9.15 g/s, Δp = 4.00 bar, σ = 1.24; simulation: m·m· = 9.03 g/s, Δp = 3.71 bar, σ = 1.26). The time difference between the images is Δt = 100 µs. The experim...
Kelvin-Helmholtz clouds. View from the plane on the height of 10000 meters,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360
Measurements of electron density by the Pioneer Venus Orbiter electron temperature probe showed extreme spatial irregularities in the form of detached plasma clouds on the night side of Venus. It is suggested that Kelvin Helmholtz (KH) instabilities may trigger such ionospheric bubbles on Mars too. ...
网络开尔文一亥姆霍兹浪状云;风切 网络释义 1. 开尔文一亥姆霍兹浪状云 当两层空气以不同的速度、相对的方向移动时,便形成了开尔文一亥姆霍兹浪状云(Kelvin-Helmholtz)悉尼上空的滚轴云(Rol… article.yeeyan.org|基于2个网页 2. 风切 ...,例如锋生、边界层不稳定、锋面上之重力波 不稳定、风切(Kelvin-Helmhol...
The clouds are named for Lord Kelvin and Hermann von Helmholtz. The two physicists studied the disturbance caused by the velocity of two fluids. The resulting instability causes the breaking wave formation, both in the ocean and the air. This became known as Kelvin-Helmholtz Instability (KHI)....
We study the linear theory of the Kelvin - Helmholtz instability, the simplest example of shear flow instability, in a partially ionized medium. We model the interaction as a two fluid system (charged and neutral) in a planar geometry. Our principal result is that for much of the relevant ...