ABSTRACT
This chapter provides physical insight to some representative two-phase flow applications. It presents computational two-phase flow case studies that demonstrate the use of basic principles and may convey physical insight by means of a comparison study and a design project employing the "mixture flow" approach. The chapter discusses the important aspect of problem understanding and system conceptualization as a first step in modeling. It outlines modeling approaches and different stages in model development. The chapter contains a brief discussion of important aspects in the development of system-specific modeling equations from the general field equations, and proven software for computer simulations in fluid mechanics and heat transfer. Mathematical modeling and validated computer simulations leading to new physical insight as well as virtual prototyping of, say, an improved device or a new product, rely heavily on an interdisciplinary knowledge pase and multifaceted skills. The chapter also discusses particle transport and interacting media studies, employing the "separate flow" approach.
