ABSTRACT
In the preceding chapter, we wrote equations that are basic to the study of ¡uid mechanics. We were able to apply them and solve them for many practical problems under special conditions. In a number of cases, the descriptive equations cannot be solved exactly, however. Consequently, we must formulate an alternative method of analysis. In this chapter, we will develop such a method by relying initially on the fact that equations must be dimensionally homogeneous. Further, we will dene several dimensionless ratios that are commonly encountered in various ¡ow situations. We will also see how these dimensionless ratios are used to advantage in correlating experimental data and in modeling problems.
