Авторы: М.Х. Гаджиев, к.ф.-м.н. – ОИВТ РАН, Э.Х. Исакаев, д.т.н. – ОИВТ РАН, П.А Коновалов. – ОИВТ РАН, Д.В. Терешонок, к.ф.-м.н. – ОИВТ РАН, А.С Тюфтяев., д.т.н. – ОИВТ РАН
Authors: M.Kh. Gadzhiev – Joint Institute for High Temperatures RAS, E.H. Isakaev – Joint Institute for High Temperatures RAS, P.A. Konovalov – Joint Institute for High Temperatures RAS, D.V. Tereshonok – Joint Institute for High Temperatures RAS, A.S. Tuftyev – Joint Institute for High Temperatures RAS
Ключевые слова: воздушный поток, влажность, обледенение, цилиндр.
Keywords: air flow, humidity, icing, cylinder, overhead grid.
Аннотация: Представлены исследования по образованию гололедных отложений на поверхности цилиндра из алюминия, помещенного в воздушный поток с содержанием капель воды. Рассмотрены два типа цилиндров – полый и цельный. В экспериментах расход воды изменялся в диапазоне 0,4 – 0,75 г/с. На основании полученных экспериментальных данных выполнен анализ свойств гололедных образований.
Abstract: In this work presents the research on formation of ice deposits on the aluminium cylinder placed in the air stream with water droplets. The experiments were performed on an experimental stand with dimensions 2m x 1.7m x 10m, which allows to create air fl ow with the temperature and humidity maximally close to natural weather conditions for an extended time period. Two types of cylinders were used — hollow and whole. In the experiments, the water fl ow rate varied in the range of 0.4 — 0.75 g/s. Based on the experimental data obtained an analyse was carried out with respect to the properties of ice formation. The measurements of ice thickness did not clearly distinguishthe difference between hollow and whole cylinder. The slight difference in the thickness of ice was apparently due to boundary effects. Ice deposition structure is heterogeneous along the surface of the cylinder and has a needle structure beside the fl ows stagnation point.