Clear, or Glaze, ice is widely considered to be the most dangerous form of icing. Clouds can support high concentrations of liquid water with relatively large drop sizes. When these water drops are carried above the freezing level, they become supercooled .

Glaze [1] or glaze ice, also called glazed frost or verglas, [2] [3] is a smooth, transparent and homogeneous ice coating occurring when freezing rain or drizzle hits a surface. [4] It is similar in appearance to clear ice , which forms from supercooled water droplets .

2024年1月1日 · Further examining the icing phenomenon, aircraft typically encounter three primary types of ice: rime (as shown in Fig. 2 a), glaze (visualized in Fig. 2 b), and a combination of the two, referred to as mixed ice (evident in Fig. 3) (Vukits, 2002). The definitions of each type of ice are detailed below: Fig. 2.

Glaze ice results from supercooled drops/droplets striking a surface but not freezing rapidly on contact. Glaze ice is denser, harder, and sometimes more transparent than rime ice. Factors, which favor glaze formation, are those that favor slow dissipation of the heat of fusion (i.e., slight supercooling and rapid accretion).

2018年4月1日 · Ice angle or ice ridge refers to the angular protrusion on a glaze ice surface. It will seriously damage the local flowfield and result in deterioration of the airfoil aerodynamic performance. Therefore, the characteristics of ice angle or ice ridge can also be used to assess the severity level of aircraft icing.

Ice accretion on an aircraft structure can be distinguished as Rime Icing, Clear/Glaze Icing or a blend of the two referred to as Cloudy or Mixed Icing: Rime Ice. Rime ice is formed when small supercooled water droplets freeze rapidly on contact with a sub-zero surface.

This article aims to address the basics of ice formation on aircraft and in their engine air inlets. It does not consider the formation of frost which is created by sublimation, the process by which water vapour freezes directly onto sub zero surfaces.

The heavy coating of ice that forms when an aircraft flies through clouds that contain large quantities of big supercooled droplets is called a glaze ice or clear ice. Clear ice usually spreads unevenly over tail surfaces, antennas, propeller blades, and wings.

2024年2月12日 · Clear ice (or glaze ice) is a glossy, clear, or translucent ice formed by the relatively slow freezing of large, supercooled water droplets. Clear icing conditions exist more often in an environment with warmer temperatures, …

Clear ice or glaze ice is a heavy coating of glassy ice which forms when flying in areas with high concentration of large, supercooled water droplets, such as cumuliform clouds and freezing rain. It spreads, often unevenly, over wing and tail surfaces, propeller blades, antennas, etc.