Characterization of Dynamic Slug Flow Induced Loads in Pipelines
The flow of a liquid mass, i.e. a ‘slug’, inside thin-walled spanning pipelines, produces a lateral traversing force. This moving force initiates dynamic stresses within the structure and is often critical when assessing structural fatigue. Moving slugs in spanning pipelines may be modeled as either...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
ASME
2012
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/33354 |
| _version_ | 1848753922658795520 |
|---|---|
| author | Reda, Ahmed Forbes, Gareth Sultan, I. |
| author2 | ASME |
| author_facet | ASME Reda, Ahmed Forbes, Gareth Sultan, I. |
| author_sort | Reda, Ahmed |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The flow of a liquid mass, i.e. a ‘slug’, inside thin-walled spanning pipelines, produces a lateral traversing force. This moving force initiates dynamic stresses within the structure and is often critical when assessing structural fatigue. Moving slugs in spanning pipelines may be modeled as either a moving concentrated force or a moving mass when investigating the vibration response of the pipeline under the passage of a slug flow. The moving concentrated force model only yields accurate results when the mass of the slug is small in relation to that of the pipeline; although, the moving mass model should be used instead when the slug‘s mass cannot be regarded as small in relation to the mass of the pipeline. The modeling of a moving concentrated force is much more readily implemented than that of a moving mass. Thus, the aim of this paper is to identify those situations where the simplification of considering a moving concentrated force can be made, or indeed if dynamic analysis is even required. Results are given in this paper to quantify when the two modeling techniques begin to differ significantly. It is intended that this paper will assist pipeline engineers discriminate between which appropriate conditions to use for either of the two different models of a traversing concentrated force/mass over a structure. |
| first_indexed | 2025-11-14T08:32:13Z |
| format | Conference Paper |
| id | curtin-20.500.11937-33354 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:32:13Z |
| publishDate | 2012 |
| publisher | ASME |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-333542017-02-28T01:51:20Z Characterization of Dynamic Slug Flow Induced Loads in Pipelines Reda, Ahmed Forbes, Gareth Sultan, I. ASME moving load structural dynamics slug flow subsea pipelines The flow of a liquid mass, i.e. a ‘slug’, inside thin-walled spanning pipelines, produces a lateral traversing force. This moving force initiates dynamic stresses within the structure and is often critical when assessing structural fatigue. Moving slugs in spanning pipelines may be modeled as either a moving concentrated force or a moving mass when investigating the vibration response of the pipeline under the passage of a slug flow. The moving concentrated force model only yields accurate results when the mass of the slug is small in relation to that of the pipeline; although, the moving mass model should be used instead when the slug‘s mass cannot be regarded as small in relation to the mass of the pipeline. The modeling of a moving concentrated force is much more readily implemented than that of a moving mass. Thus, the aim of this paper is to identify those situations where the simplification of considering a moving concentrated force can be made, or indeed if dynamic analysis is even required. Results are given in this paper to quantify when the two modeling techniques begin to differ significantly. It is intended that this paper will assist pipeline engineers discriminate between which appropriate conditions to use for either of the two different models of a traversing concentrated force/mass over a structure. 2012 Conference Paper http://hdl.handle.net/20.500.11937/33354 ASME restricted |
| spellingShingle | moving load structural dynamics slug flow subsea pipelines Reda, Ahmed Forbes, Gareth Sultan, I. Characterization of Dynamic Slug Flow Induced Loads in Pipelines |
| title | Characterization of Dynamic Slug Flow Induced Loads in Pipelines |
| title_full | Characterization of Dynamic Slug Flow Induced Loads in Pipelines |
| title_fullStr | Characterization of Dynamic Slug Flow Induced Loads in Pipelines |
| title_full_unstemmed | Characterization of Dynamic Slug Flow Induced Loads in Pipelines |
| title_short | Characterization of Dynamic Slug Flow Induced Loads in Pipelines |
| title_sort | characterization of dynamic slug flow induced loads in pipelines |
| topic | moving load structural dynamics slug flow subsea pipelines |
| url | http://hdl.handle.net/20.500.11937/33354 |