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Numerical Simulation of Two-Phase Flow in an Effervescent Atomizer. Numerical Simulation of Two-Phase Flow in an Effervescent Atomizer for Nano-suspension Spray

Автор:   Sanaz A.E.
мягкая обложка
68 страниц
2009 год
Издательство:   Книга по Требованию
Цена:
1994 руб
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Описание:In suspension plasma spraying technique, there is a vital demand to produce a uniform and non-pulsating spray. In this study, the two-phase flow inside the effervescent atomizers is numerically modeled. The main concern of atomization is to have a controllable and uniform spray. These numerical results are compared with the experimental data available in literature. Thus, understanding the behavior of gas and liquid flow through the nozzle is crucial to predict the condition of outcoming spray. Effervescent atomizers, in which a gas is bubbled into the bulk liquid through an aerator, have shown to be a technological alternative to the conventional atomizers when atomization of liquids with large variety of viscosity and density is required. The behavior of liquid film in the discharge passage is investigated using different Gas to Liquid mass flow Ratios (GLR). The effect of nano-sized solid particles concentration on the liquid film thickness at the exit of the atomizer is studied through the change in liquid bulk density and viscosity.


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Of Time and Space and Other Things

Hydrogen, therefore, will be a Gas not made up of separate atoms as is the case with the inert gases, but of two-atom molecules. Something similar will be true in the case of fluorine (electronic distribution 2,7), oxygen (2,6) and nitrogen (2,5). The fluorine atom can contribute an electron and form a shared pool of two electrons with a,neighboring fluorine atom which also contributes an electron. Two oxygen atoms can contribute two electrons apiece to form a shared pool of four electrons, and two nitrogen atoms can contribute three electrons each and form a shared pool of six electrons. I In each case, the atoms will achieve the 2,8 distribution of neon at the cost of forining paired molecules. As a result, enough stability is achieved so that fluorine (F2). oxygen (02), and nitrogen (N2) are all Gases. The oxygen atom can also form a shared pool of two electrons with each of two neighbors, and those two neigh bors can form another shared pool of two electrons among themselves. The result is a combination of three oxygen atoms (O:j), each with a neon configuration ...»

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Мозаика.
50 фишек. Размер поля: 24 х 35 см. Размер фишки: 40 х 45 х 14 мм. Материал: полипропилен.
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Блюдо для блинов "Спелая смородина", 24,5x28x3 см.
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680 руб
Раздел: Игры логические


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