Journal article
The interaction of background ocean air bubbles with a surface ship
International journal for numerical methods in fluids, Vol.28(4), pp.571-600
1998
DOI: 10.1002/(SICI)1097-0363(19980930)28:4<571::AID-FLD731>3.0.CO;2-E
Abstract
A two-fluid model suitable for the calculation of the two-phase flow field around a naval surface ship is presented. This model couples the Reynolds-averaged Navier–Stokes (RANS) equations with equations for the evolution of the gas-phase momentum, volume fraction and bubble number density, thereby allowing the multidimensional calculation of the two-phase flow for monodisperse variable size bubbles. The bubble field modifies the liquid solution through changes in the liquid mass and momentum conservation equations. The model is applied to the case of the scavenging of wind-induced sea-background bubbles by an unpropelled US Navy frigate under non-zero Froude number boundary conditions at the free surface. This is an important test case, because it can be simulated experimentally with a model-scale ship in a towing tank. A significant modification of the background bubble field is predicted in the wake of the ship, where bubble depletion occurs along with a reduction in the bubble size due to dissolution. This effect is due to lateral phase distribution phenomena and the generation of an upwelling plume in the near wake that brings smaller bubbles up to the surface.
Details
- Title: Subtitle
- The interaction of background ocean air bubbles with a surface ship
- Creators
- P. M CARRICA - Center for Multiphase Research, Rensselaer Polvtechnic Institute, Troy, NY 12180-3590, United StatesF. J BONETTO - Center for Multiphase Research, Rensselaer Polvtechnic Institute, Troy, NY 12180-3590, United StatesD. A DREW - Center for Multiphase Research, Rensselaer Polvtechnic Institute, Troy, NY 12180-3590, United StatesR. T LAHEY - Center for Multiphase Research, Rensselaer Polvtechnic Institute, Troy, NY 12180-3590, United States
- Resource Type
- Journal article
- Publication Details
- International journal for numerical methods in fluids, Vol.28(4), pp.571-600
- Publisher
- Wiley; Chichester
- DOI
- 10.1002/(SICI)1097-0363(19980930)28:4<571::AID-FLD731>3.0.CO;2-E
- ISSN
- 0271-2091
- eISSN
- 1097-0363
- Language
- English
- Date published
- 1998
- Academic Unit
- IIHR--Hydroscience and Engineering; Mechanical Engineering
- Record Identifier
- 9984064252302771
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