kaksifaasis
Kaksifaasis is a term used in Finnish-language scientific and engineering writing to denote systems or phenomena that involve two distinct phases. In its broad sense, it refers to two-phase processes where two immiscible or partially miscible components interact within a shared domain, such as through shared transport or reaction environments. The term is not strictly standardized and is applied across disciplines, often with domain-specific definitions of the two phases and their interface.
In fluid engineering, kaksifaasis commonly describes two-phase flow, for example gas–liquid or liquid–liquid mixtures flowing through
Modeling approaches include two-fluid models (separate conservation equations for each phase), drift-flux models, and homogeneous models.
Other uses of kaksifaasis appear in contexts such as historical discussions of two-phase electrical power systems