Steady and unsteady motion of one-component two-phase bubbly flow in 1-D Geometry
| Autor: | Gino Boccardi, Paolo Mele, Michele La Rocca |
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| Přispěvatelé: | LA ROCCA, Michele, Mele, Paolo, Boccardi, G., Paolo, Mele, Giorgio, Boccardi |
| Rok vydání: | 2006 |
| Předmět: |
Physics
Work (thermodynamics) Water hammer Mechanical Engineering Nozzle Phase (waves) Motion (geometry) Geometry Mechanics Condensed Matter Physics Physics::Fluid Dynamics Flow (mathematics) Mechanics of Materials Vector field Two-phase flow Two phase flows/Bubbly flows/Fluid transients/Mechanics of fluids |
| Zdroj: | Meccanica. 41:483-499 |
| ISSN: | 1572-9648 0025-6455 |
| DOI: | 10.1007/s11012-006-0005-8 |
| Popis: | The aim of this work is to present a mathematical model of themotion of a one-component two-phase bubbly flow in one-dimensional geometry. Bubbles are assumed to be spherical and far enough from each other in order to exclude reciprocal interactions. The mathematical model is derived by means of a phase average operation and assuming a suitable description of the velocity field in the liquid phase, in the neighbourhood of the bubbles. Two different sets of experimental conditions are then simulated: a steady motion in a convergent–divergent nozzle and two different unsteady flows: i.e. two water hammer transients. Both the experimental conditions considered are well reproduced, indicating the validity of the proposed model. |
| Databáze: | OpenAIRE |
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