Наукова періодика України | Naukovyi visnyk Natsionalnoho Hirnychoho Universytetu | ||
Bondarenko А. O. Theoretical bases of pulp suction process in the shallow dredge underwater face / А. O. Bondarenko // Науковий вісник Національного гірничого університету. - 2018. - № 3. - С. 22–29. - Режим доступу: http://nbuv.gov.ua/UJRN/Nvngu_2018_3_5 Purpose. To develop a mathematical model of the process of interaction of the shallow dredge suction pipe with solid particles and formation of the underwater face. Methodology. To describe the motion of a fluid flow involving solid particles in the underwater face of a single suction pipe, the continuity equation for an ideal fluid in polar coordinates is applied. The solution of the differential equation in general form is fulfilled. The motion of solid particles and the formation of an underwater face of the suction pipe are considered as a result of the difference in pressures below and above the particle. Findings. A mathematical description of the process of movement of a carrier flow carrying solid particles in the underwater surface suction zone of a single suction pipe is performed, using the continuity equation for an ideal fluid, written in polar coordinates. The interaction of the suction pipe with the pulp flow is described in the form of an axisymmetric process with a function of the medium density constant in time. The motion of a solid particle in an underwater face of a suction pipe is considered as a function of the difference in pressures below and above the particle. Based on the fact of low velocities of the suction flow moving, an expression is obtained for calculating the suction radius of solid particles and determining the boundary of the erosion zone when the soil is sucked in the underwater face of the suction pipe. The determining effect of the radial motion of the suction flow and the centrifugal force insignificance is taken into account. The construction of an underwater surface erosion zone of a single suction pipe in the form of surfaces of the erosion zone boundary and the boundary of the suction zone of the suspended soil composed of quartz particles by the size 0,16 mm at a suction efficiency of 800 m<^>3 Цитованість авторів публікації: Бібліографічний опис для цитування: Bondarenko А. O. Theoretical bases of pulp suction process in the shallow dredge underwater face / А. O. Bondarenko // Науковий вісник Національного гірничого університету. - 2018. - № 3. - С. 22–29. - Режим доступу: http://nbuv.gov.ua/UJRN/Nvngu_2018_3_5. Якщо, ви не знайшли інформацію про автора(ів) публікації, маєте бажання виправити або відобразити більш докладну інформацію про науковців України запрошуємо заповнити "Анкету науковця"
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