Journal article
A polydisperse model for bubbly two-phase flow around a surface ship
International journal of multiphase flow, Vol.25(2), pp.257-305
1999
DOI: 10.1016/S0301-9322(98)00047-0
Abstract
A three dimensional polydisperse model for bubbly two-phase flow around a surface ship is presented. The Boltzmann equation for the bubble mass probability density function is evaluated using a multigroup approach with groups of constant bubble mass. The intergroup transfer mechanisms are bubble breakup, coalescence and the dissolution of air into the ocean, and their effects on the two-phase flow field are analyzed. A three dimensional two-fluid model is used for each bubble mass group to calculate the group’s average gas velocity, resulting in four scalar equations per group. The air entrainment process is modeled using simulated breaking bow waves and the steady-state evolution of the gas bubbles for zero Froude number is obtained. It was found that intergroup transfer is very important in these flows. Some of the research areas that need further improvement for the numerical prediction of polydisperse two-phase flow around a ship have been identified and are discussed.
Details
- Title: Subtitle
- A polydisperse model for bubbly two-phase flow around a surface ship
- Creators
- P.M Carrica - Center for Multiphase Research, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USAD Drew - Center for Multiphase Research, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USAF Bonetto - Center for Multiphase Research, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USAR.T Lahey - Center for Multiphase Research, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA
- Resource Type
- Journal article
- Publication Details
- International journal of multiphase flow, Vol.25(2), pp.257-305
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/S0301-9322(98)00047-0
- ISSN
- 0301-9322
- eISSN
- 1879-3533
- Language
- English
- Date published
- 1999
- Academic Unit
- Mechanical Engineering; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984064594502771
Metrics
11 Record Views