Modelling of Secondary Flow Vortex Structures, Hydrodynamic Instability and Associated Heat Transfer in Fluid Flow Through Curved Ducts
This paper presents a numerical study that examines the secondary flow and thermal behaviour in curved rectangular ducts. For developing laminar flow through these ducts, a novel 3-dimensional model based on vortex structures is formulated and a parametric influence is examined using the contours of...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
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Indian Institute of Technology Madras
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/18576 |
| _version_ | 1848749784756649984 |
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| author | Chandratilleke, Tilak Nadim, Nima Narayanaswamy, Ramesh |
| author2 | C.Balaji |
| author_facet | C.Balaji Chandratilleke, Tilak Nadim, Nima Narayanaswamy, Ramesh |
| author_sort | Chandratilleke, Tilak |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper presents a numerical study that examines the secondary flow and thermal behaviour in curved rectangular ducts. For developing laminar flow through these ducts, a novel 3-dimensional model based on vortex structures is formulated and a parametric influence is examined using the contours of helicity for a range of fluid flow rates, duct aspect ratios and wall heat fluxes. The flow and geometrical conditions leading to hydrodynamic instability are identified. Results are validated against experimental data. The study presents a novel method for determining the onset of hydrodynamic instability. |
| first_indexed | 2025-11-14T07:26:27Z |
| format | Conference Paper |
| id | curtin-20.500.11937-18576 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:26:27Z |
| publishDate | 2011 |
| publisher | Indian Institute of Technology Madras |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-185762023-01-27T05:26:31Z Modelling of Secondary Flow Vortex Structures, Hydrodynamic Instability and Associated Heat Transfer in Fluid Flow Through Curved Ducts Chandratilleke, Tilak Nadim, Nima Narayanaswamy, Ramesh C.Balaji Raj M Manglik This paper presents a numerical study that examines the secondary flow and thermal behaviour in curved rectangular ducts. For developing laminar flow through these ducts, a novel 3-dimensional model based on vortex structures is formulated and a parametric influence is examined using the contours of helicity for a range of fluid flow rates, duct aspect ratios and wall heat fluxes. The flow and geometrical conditions leading to hydrodynamic instability are identified. Results are validated against experimental data. The study presents a novel method for determining the onset of hydrodynamic instability. 2011 Conference Paper http://hdl.handle.net/20.500.11937/18576 Indian Institute of Technology Madras restricted |
| spellingShingle | Chandratilleke, Tilak Nadim, Nima Narayanaswamy, Ramesh Modelling of Secondary Flow Vortex Structures, Hydrodynamic Instability and Associated Heat Transfer in Fluid Flow Through Curved Ducts |
| title | Modelling of Secondary Flow Vortex Structures, Hydrodynamic Instability and Associated Heat Transfer in Fluid Flow Through Curved Ducts |
| title_full | Modelling of Secondary Flow Vortex Structures, Hydrodynamic Instability and Associated Heat Transfer in Fluid Flow Through Curved Ducts |
| title_fullStr | Modelling of Secondary Flow Vortex Structures, Hydrodynamic Instability and Associated Heat Transfer in Fluid Flow Through Curved Ducts |
| title_full_unstemmed | Modelling of Secondary Flow Vortex Structures, Hydrodynamic Instability and Associated Heat Transfer in Fluid Flow Through Curved Ducts |
| title_short | Modelling of Secondary Flow Vortex Structures, Hydrodynamic Instability and Associated Heat Transfer in Fluid Flow Through Curved Ducts |
| title_sort | modelling of secondary flow vortex structures, hydrodynamic instability and associated heat transfer in fluid flow through curved ducts |
| url | http://hdl.handle.net/20.500.11937/18576 |