منابع مشابه
Supercooled large droplets in icing conditions
In March 1997 NLR investigated the icing atmosphere for aircraft by flying with an instrumented research aircraft through clouds. Liquid water content, droplet diameter distributions and air temperature were measured. Large droplets were found in air masses with a limited extent. Results from the measurement campaign are presented and compared with limits in aircraft and helicopter certificatio...
متن کاملWind Turbine Performance Under Icing Conditions
Department of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign, 306 Talbot Laboratory, 104 S. Wright Street Urbana. IL 61801-2935 The effects of rime ice on horizontal axis wind turbine performance were estimated. For typzcal supercooled fog conditions found in cold northern regions, four rime ice accretwns on the 5809 wmd turbine airfoil were predicted usi...
متن کاملWeather Features Associated with Aircraft Icing Conditions: A Case Study
In the context of aviation weather hazards, the study of aircraft icing is very important because of several accidents attributed to it over recent decades. On February 1, 2012, an unusual meteorological situation caused severe icing of a C-212-200, an aircraft used during winter 2011-2012 to study winter cloud systems in the Guadarrama Mountains of the central Iberian Peninsula. Observations i...
متن کاملThermal Anemometry Grid Sensor
A novel thermal anemometry grid sensor was developed for the simultaneous measurement of cross-sectional temperature and axial velocity distribution in a fluid flow. The sensor consists of a set of platinum resistors arranged in a regular grid. Each platinum resistor allows the simultaneous measurement of fluid temperature via electrical resistance and flow velocity via constant voltage thermal...
متن کاملBiodegradation of De-icing Com- Pounds in Columns Simulating a Range of Natural Conditions
The determination of the fate of aircraft de-icing fluids in near runway soils is important in evaluating environmental impacts and in the design of treatment system. The effect of biodegradation of the primary component of de-icing fluids, propylene glycol (PG), was tested in waters-saturated sand columns. Biogrowth significantly reduced the hydraulic conductivity of the sand. This change in h...
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ژورنال
عنوان ژورنال: Journal of Atmospheric and Oceanic Technology
سال: 2001
ISSN: 0739-0572,1520-0426
DOI: 10.1175/1520-0426(2001)018<1457:aiic>2.0.co;2