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Prediction of flow patterns and pressure gradient in inclined two-phase flow systems
Thesis (MSc) -- University of Stellenbosch, 1991.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867613962847125504 |
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| access_status_str | Open Access |
| author | Funnell, Raymond Charles |
| author2 | Kroger, D. G. |
| author_browse | Funnell, Raymond Charles Kroger, D. G. |
| author_facet | Kroger, D. G. Funnell, Raymond Charles |
| author_sort | Funnell, Raymond Charles |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MSc) -- University of Stellenbosch, 1991. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/69379 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:44:27.789Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/69379 Prediction of flow patterns and pressure gradient in inclined two-phase flow systems Funnell, Raymond Charles Kroger, D. G. Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Two-phase flow Two-phase flow -- Mathematical models Dissertations -- Mechanical engineering Thesis (MSc) -- University of Stellenbosch, 1991. The prime objectives of this work are to gain an understanding of the mechanisms responsible for flow pattern transitions; establish mathematical models for each of these mechanisms so that flow pattern transitions may be predicted; gain insight into the mechanisms responsible for the pressure gradient and advance towards a mathematical model; obtain flooding data for inclined tubes and propose a general flooding correlation. A gas-liquid two-phase flow visualisation apparatus was designed with a 43.8 mm diameter test section. Flow patterns, pressure gradient and flooding information were collected for air-water, helium-water and argon-water mixtures flowing at various inclination angles. The flooding correlation of Wallis has been extended to include inclination angle. The counter-current pressure gradient data has been plotted in a non-dimensional form for general usage. The co-current pressure gradient data has also been plotted in the same form but its general applicability is uncertain. The universal flow pattern model of Barnea, applicable to co-current flow at all inclination angles, is discussed in detail and compared to the present flow pattern data. The physical mechanisms causing annular flow are discussed. Masters 2012-08-27T12:27:03Z 2012-08-27T12:27:03Z 1991 Thesis http://hdl.handle.net/10019.1/69379 en Stellenbosch University 272 pages : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Two-phase flow Two-phase flow -- Mathematical models Dissertations -- Mechanical engineering Funnell, Raymond Charles Prediction of flow patterns and pressure gradient in inclined two-phase flow systems |
| title | Prediction of flow patterns and pressure gradient in inclined two-phase flow systems |
| title_full | Prediction of flow patterns and pressure gradient in inclined two-phase flow systems |
| title_fullStr | Prediction of flow patterns and pressure gradient in inclined two-phase flow systems |
| title_full_unstemmed | Prediction of flow patterns and pressure gradient in inclined two-phase flow systems |
| title_short | Prediction of flow patterns and pressure gradient in inclined two-phase flow systems |
| title_sort | prediction of flow patterns and pressure gradient in inclined two phase flow systems |
| topic | Two-phase flow Two-phase flow -- Mathematical models Dissertations -- Mechanical engineering |
| url | http://hdl.handle.net/10019.1/69379 |
| work_keys_str_mv | AT funnellraymondcharles predictionofflowpatternsandpressuregradientininclinedtwophaseflowsystems |