Transient multiphase flows with temporal and spatial variation of the volumetric fractions of the participating phases can be represented by sequences of geometric flow patterns that have some characteristic length scale. Owing to the highly random behavior of the flow in detail, the number of flow patterns needed for this purpose is very large. Nevertheless, this approach has led to some successful applications in the field of multiphase flow modeling. Frequently modern mathematical models of transient flows include, among others, the following features
Postulation of a limited number of idealized flow patterns, with transition limits as a function of local parameters for steady-state flow
Identification of one of the postulated idealized steady-state flow patterns for each time step
Computation of a characteristic steady-state length scale of the flow patterns (e.g., bubble or droplet size) in order to address further constitutive relationships for interfacial heat, mass, and momentum transfer
کتاب | |
حوزه تخصصی کتاب | سیالات |
تعداد فصل های کتاب | 11 |
زبان کتاب | ENGLISH |
مشخصات کلی | |
تعداد صفحات | 371 |
تعداد صفحات محصول | بیش از 200 |
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