Effect of Impact Angle on the Erosion Rate of Coherent Granular Soil, with a Chernozemic Soil as an Example

Larionov, G.A.; Bushueva, O.G.; Gorobets, A.V.; Dobrovol’skaya, N.G.; Kiryukhina, Z.P.; Krasnov, S.F.; Kuksina, L.V.; Litvin, L.F.; Sudnitsyn, I.I.

Авторы: Larionov G.A., Bushueva O.G., Gorobets A.V., Dobrovol’skaya N.G., Kiryukhina Z.P., Krasnov S.F., Kuksina L.V., Litvin L.F., Sudnitsyn I.I.
Журнал: Eurasian Soil Science
Том: 51
Номер: 2
Год издания: 2018
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 251
Последняя страница: 254
Оригинальные версии: Влияние угла атаки на скорость размыва связного зернистого грунта на примере черноземной почвы
DOI: 10.1134/S1064229318020072
Аннотация: It has been shown in experiments in a hydraulic flume with a knee-shaped bend that the rate of soil erosion more than doubles at the flow impact angles to the channel side from 0° to 50°. At higher channel bends, the experiment could not be performed because of backwater. Results of erosion by water stream approaching the sample surface at angles between 2° and 90° are reported. It has been found that the maximum erosion rate is observed at flow impact angles of about 45°, and the minimum rate at 90°. The minimum soil erosion rate is five times lower than the maximum erosion rate. This is due to the difference in the rate of free water penetration into the upper soil layer, and the impact of the hydrodynamic pressure, which is maximum at the impact angle of 90°. The penetration of water into the interaggregate space results in the breaking of bonds between aggregates, which is the main condition for the capture of particles by the flow.
Добавил в систему: Горобец Андрей Васильевич

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Effect of Impact Angle on the Erosion Rate of Coherent Granular Soil, with a Chernozemic Soil as an Exampleстатья Перевод

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