Qualitative analysis of the equations of motion of a particle in a rotating liquid

The movement of a particle of disperse phase in a flow of rotating liquid phase was analyzed. Two characteristic sections, namely steady-state and non-steady-state sections, were identified. It was found that there is no principle distinctions between the movement of a particle in the gravity field or in the field of centrifugal force. Thus, the use of the two sections detected in engineering calculations of hydrodynamic or mass-exchange processes substantially facilitates the calculations and is physically justified

Criteria analysis of the equations of hydrodynamics for the processes of thin-layer separation

The general equations of motion of a monodisperse, two-phase medium in the zone of intertray spacing of a separator are analysed by the methods of similarity theory. Characteristic scales and similarity criteria are determined; the order of importance for the equation terms are estimated; the qualitative picture of the flow is established; and the simplified mathematical model of the processes of mixture separation are formulated in the boundary-layer approximation

Investigation of flows in boundary layers in processes of thin-layer separation

Analytical expressions have been obtained to determine lateral profiles of velocity distribution in boundary layers of separated phases, when monodisperse emulsions are separated. Equations, determining the thickness of boundary layers, have been formulated. The general picture of phase flows in the interplate clearances of the separator has been investigated. Thus, a simplified mathematical model has been developed to investigate the process of separating a monodisperse mixture in separators

Mathematical model of the separation of polydisperse systems

A mathematical model is proposed for the thin-layer separation of a polydisperse mixture. The specific features of the process that are due to the variation of the concentration and composition of the dispersed phase along the interplate channel are considered

Palaeozoic-Recent geological development and uplift of the Amanos Mountains (S Turkey) in the critically located northwesternmost corner of the Arabian continent

<p>We have carried out a several-year-long study of the Amanos Mountains, on the basis of which we present new sedimentary and structural evidence, which we combine with existing data, to produce the first comprehensive synthesis in the regional geological setting. The ca. N-S-trending Amanos Mountains are located at the northwesternmost edge of the Arabian plate, near the intersection of the African and Eurasian plates. Mixed siliciclastic-carbonate sediments accumulated on the north-Gondwana margin during the Palaeozoic. Triassic rift-related sedimentation was followed by platform carbonate deposition during Jurassic-Cretaceous. Late Cretaceous was characterised by platform collapse and southward emplacement of melanges and a supra-subduction zone ophiolite. Latest Cretaceous transgressive shallow-water carbonates gave way to deeper-water deposits during Palaeocene-Eocene. Eocene southward compression, reflecting initial collision, resulted in open folding, reverse faulting and duplexing. Fluvial, lagoonal and shallow-marine carbonates accumulated during Late Oligocene(?)-Early Miocene, associated with basaltic magmatism. Intensifying collision during Mid-Miocene initiated a foreland basin that then infilled with deep-water siliciclastic gravity flows. Late Miocene-Early Pliocene compression created mountain-sized folds and thrusts, verging E in the north but SE in the south. The resulting surface uplift triggered deposition of huge alluvial outwash fans in the west. Smaller alluvial fans formed along both mountain flanks during the Pleistocene after major surface uplift ended. Pliocene-Pleistocene alluvium was tilted towards the mountain front in the west. Strike-slip/transtension along the East Anatolian Transform Fault and localised sub-horizontal Quaternary basaltic volcanism in the region reflect regional transtension during Late Pliocene-Pleistocene (<4 Ma).</p

Determination of the maximum droplet diameter during centrifugal extraction, soil analysis, contamination and waste disposal

The prospects of the research are determined by the high potential for solving current problems related to environmental problems. Extraction allows not only the purification of chemical production waste, but also the analysis of elements distributed in the soil, which is especially important for migrating contaminants, and contaminants obtained from chemical, paint and varnish and agricultural waste. Examples of such waste are metals and their compounds, fertilizers and pesticides, and radioactive waste. These contaminants enter the human body through food chains, producing toxic, carcinogenic, and mutagenic effects. This approach has several directions that allow us to solve the problem comprehensively. In the first direction of our research, we will consider how this mathematical model can be applied in waste treatment technologies. In the second direction, we will pay attention to soil analysis. In the third research direction, we will focus on optimizing extraction and waste disposal technologies. This paper considers a mathematical model that describes the formation of the shape of droplets when moving in a field of centrifugal forces. When liquid droplets move within liquid or gaseous media, the surface of these droplets undergoes deformation, which can lead to their destruction and the formation of smaller droplets

Qualitative analysis of the equations of motion of a particle in a rotating liquid

The movement of a particle of disperse phase in a flow of rotating liquid phase was analyzed. Two characteristic sections, namely steady-state and non-steady-state sections, were identified. It was found that there is no principle distinctions between the movement of a particle in the gravity field or in the field of centrifugal force. Thus, the use of the two sections detected in engineering calculations of hydrodynamic or mass-exchange processes substantially facilitates the calculations and is physically justified

Qualitative analysis of the equations of motion of a particle in a rotating liquid

The movement of a particle of disperse phase in a flow of rotating liquid phase was analyzed. Two characteristic sections, namely steady-state and non-steady-state sections, were identified. It was found that there is no principle distinctions between the movement of a particle in the gravity field or in the field of centrifugal force. Thus, the use of the two sections detected in engineering calculations of hydrodynamic or mass-exchange processes substantially facilitates the calculations and is physically justified

Qualitative analysis of the equations of motion of a particle in a rotating liquid

The movement of a particle of disperse phase in a flow of rotating liquid phase was analyzed. Two characteristic sections, namely steady-state and non-steady-state sections, were identified. It was found that there is no principle distinctions between the movement of a particle in the gravity field or in the field of centrifugal force. Thus, the use of the two sections detected in engineering calculations of hydrodynamic or mass-exchange processes substantially facilitates the calculations and is physically justified

Fractionation of microcrystals in an aqueous solution through a flat-channel microfilter

The feasibility of using a flat-channel microfilter in the fractionation of microscopic particles in a suspension is considered. With this purpose, suspension flow hydrodynamics in a flat channel with penetrable walls is studied, that allows the development of a model for fractional separation of particles in an operating microfilter