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Heat transfer to liquid metals, with observations on the effect of super-imposed free convection in turbulent flow
Evaluation of the different theories of heat transfer to liquid metals requires values of the ratio of eddy diffusivities of heat and momentum, which may be obtained from temperature and velocity profiles measured in the flowing liquid metal. Temperature profiles have been reported by a number of wo...
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| Format: | Thesis |
| Language: | English |
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Department of Chemical Engineering
2015
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| _version_ | 1867613184700973056 |
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| access_status_str | Open Access |
| author | Buhr, Heinrich Otto |
| author2 | Carr, A D |
| author_browse | Buhr, Heinrich Otto Carr, A D |
| author_facet | Carr, A D Buhr, Heinrich Otto |
| author_sort | Buhr, Heinrich Otto |
| collection | Thesis |
| description | Evaluation of the different theories of heat transfer to liquid metals requires values of the ratio of eddy diffusivities of heat and momentum, which may be obtained from temperature and velocity profiles measured in the flowing liquid metal. Temperature profiles have been reported by a number of workers, but these results are in poor agreement and this investigation was undertaken to measure further profiles and thus obtain reliable eddy diffusivities. Chapter 1 introduces the background to liquid metal heat transfer theory, and Chapter 2 contains a discussion of the experimental apparatus that was constructed for the purposes of this investigation. A description of this equipment he-s been published (Ref. 64) and the material is included here with the permission of the candidate's supervisor. Chapter 3 discusses the unsuccessful attempts to measure velocity profiles, and then goes on to consider appropriate values of the eddy diffusivity of momentum, based on the universal velocity profile. The data of Nikuradse are recommended after a careful study of all the available data and the author believes that this is a conclusion which will be useful to other workers in the field, who usually make an essentially random choice of eddy diffusivities. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/14055 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:07.214Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Department of Chemical Engineering |
| publisherStr | Department of Chemical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/14055 Heat transfer to liquid metals, with observations on the effect of super-imposed free convection in turbulent flow Buhr, Heinrich Otto Carr, A D Chemical Engineering Evaluation of the different theories of heat transfer to liquid metals requires values of the ratio of eddy diffusivities of heat and momentum, which may be obtained from temperature and velocity profiles measured in the flowing liquid metal. Temperature profiles have been reported by a number of workers, but these results are in poor agreement and this investigation was undertaken to measure further profiles and thus obtain reliable eddy diffusivities. Chapter 1 introduces the background to liquid metal heat transfer theory, and Chapter 2 contains a discussion of the experimental apparatus that was constructed for the purposes of this investigation. A description of this equipment he-s been published (Ref. 64) and the material is included here with the permission of the candidate's supervisor. Chapter 3 discusses the unsuccessful attempts to measure velocity profiles, and then goes on to consider appropriate values of the eddy diffusivity of momentum, based on the universal velocity profile. The data of Nikuradse are recommended after a careful study of all the available data and the author believes that this is a conclusion which will be useful to other workers in the field, who usually make an essentially random choice of eddy diffusivities. 2015-09-23T07:33:10Z 2015-09-23T07:33:10Z 1967 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/14055 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Chemical Engineering Buhr, Heinrich Otto Heat transfer to liquid metals, with observations on the effect of super-imposed free convection in turbulent flow |
| thesis_degree_str | Doctoral |
| title | Heat transfer to liquid metals, with observations on the effect of super-imposed free convection in turbulent flow |
| title_full | Heat transfer to liquid metals, with observations on the effect of super-imposed free convection in turbulent flow |
| title_fullStr | Heat transfer to liquid metals, with observations on the effect of super-imposed free convection in turbulent flow |
| title_full_unstemmed | Heat transfer to liquid metals, with observations on the effect of super-imposed free convection in turbulent flow |
| title_short | Heat transfer to liquid metals, with observations on the effect of super-imposed free convection in turbulent flow |
| title_sort | heat transfer to liquid metals with observations on the effect of super imposed free convection in turbulent flow |
| topic | Chemical Engineering |
| url | http://hdl.handle.net/11427/14055 |
| work_keys_str_mv | AT buhrheinrichotto heattransfertoliquidmetalswithobservationsontheeffectofsuperimposedfreeconvectioninturbulentflow |