Abstract
In Chapter IV, we consider the cases in which the volume of the gas and that of the liquid are of the same order of magnitude so that the mixture of the gas and the liquid may be considered as a mixture of two continuum media and the discrete properties of gas or liquid may be ignored. We consider the average properties of the gas and the liquid as well as those of the mixture as a continuum medium. There are other practical cases in which the liquid or the gas occupies a very small volume in the mixture as a whole and we should not treat the mixture of the gas and the liquid as a mixture of two continuous media and the discrete properties for the species (liquid or gas which occupies a small volume in the mixture) become important. There are two limiting cases for this type of fluid flow: one is the atomization of liquid in a gas or in another liquid and the other is the bubble of gas in a liquid. In the first case, the formation of drops of liquid and their effects on the fluid flow as a whole are important while in the second case, it is usually referred to as bubble dynamics. There are many practical applications for the atomization of a liquid and bubble dynamics such as combution, jet engine injectors, spray-producing equipments, spray drying, boiling, meteorological problems and many other engineering applications, particularly those of chemical engineering processes. Because of the complexity of the practical problems, most of the treatments are semi-empirical in nature. Good reviews of these problems have been given in references [1,2, 3,12, 24]. In this chapter, we shall discuss only those aspects of these problems which will give us some basic understanding of these phenomena.
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Pai, SI. (1977). Atomization of a Liquid and Bubble Dynamics. In: Oswatitsch, K. (eds) Two-Phase Flows. Vieweg Tracts in Pure and Applied Physics, vol 3. Vieweg+Teubner Verlag, Wiesbaden. https://doi.org/10.1007/978-3-322-86348-5_6
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DOI: https://doi.org/10.1007/978-3-322-86348-5_6
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