On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit
The development of the velocity gradient at the opening of a closed conduit plays an essential role in monitoring the heat transfer behavior. Hence it is indispensable to examine the minimum critical length at which the velocity gradient is fully developed. Ultimately the flow is fully developed. Th...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Penerbit Akademia Baru
2019
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/73078/ http://irep.iium.edu.my/73078/7/73078%20On%20Numerical%20Investigation%20of%20Semi-Empirical.pdf http://irep.iium.edu.my/73078/13/73078%20On%20Numerical%20Investigation%20of%20Semi-Empirical_scopus.pdf |
| _version_ | 1848787735005888512 |
|---|---|
| author | Mohd Umair, Siddique Ansari, Emad Khan, Sher Afghan Alrobaian, Abdulrahman |
| author_facet | Mohd Umair, Siddique Ansari, Emad Khan, Sher Afghan Alrobaian, Abdulrahman |
| author_sort | Mohd Umair, Siddique |
| building | IIUM Repository |
| collection | Online Access |
| description | The development of the velocity gradient at the opening of a closed conduit plays an essential role in monitoring the heat transfer behavior. Hence it is indispensable to examine the minimum critical length at which the velocity gradient is fully developed. Ultimately the flow is fully developed. The developing length determination is very useful for many industrial problems. This can be concluded from the literature survey. The role played by the wall shear in creating the profile is of strong consideration against the Reynold number of flowing fluid. Therefore, the development length for laminar and turbulent flow are defined separately. The determination of average Reynold number through the conduit is mandatory to be known in terms of developing length. In the latter part of the article, semi-empirical relations are defined for developing length separately for laminar and turbulent flow. In order to minimize the effort on experimentation, simulations are carried out in the present studies in ANSYS CFX 18. The developing length carries 1/6th power to the Reynold number. For determination of developing length in terms of Reynold number, SST turbulence model was used. |
| first_indexed | 2025-11-14T17:29:39Z |
| format | Article |
| id | iium-73078 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:29:39Z |
| publishDate | 2019 |
| publisher | Penerbit Akademia Baru |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-730782020-04-04T01:19:23Z http://irep.iium.edu.my/73078/ On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit Mohd Umair, Siddique Ansari, Emad Khan, Sher Afghan Alrobaian, Abdulrahman TL Motor vehicles. Aeronautics. Astronautics The development of the velocity gradient at the opening of a closed conduit plays an essential role in monitoring the heat transfer behavior. Hence it is indispensable to examine the minimum critical length at which the velocity gradient is fully developed. Ultimately the flow is fully developed. The developing length determination is very useful for many industrial problems. This can be concluded from the literature survey. The role played by the wall shear in creating the profile is of strong consideration against the Reynold number of flowing fluid. Therefore, the development length for laminar and turbulent flow are defined separately. The determination of average Reynold number through the conduit is mandatory to be known in terms of developing length. In the latter part of the article, semi-empirical relations are defined for developing length separately for laminar and turbulent flow. In order to minimize the effort on experimentation, simulations are carried out in the present studies in ANSYS CFX 18. The developing length carries 1/6th power to the Reynold number. For determination of developing length in terms of Reynold number, SST turbulence model was used. Penerbit Akademia Baru 2019 Article PeerReviewed application/pdf en http://irep.iium.edu.my/73078/7/73078%20On%20Numerical%20Investigation%20of%20Semi-Empirical.pdf application/pdf en http://irep.iium.edu.my/73078/13/73078%20On%20Numerical%20Investigation%20of%20Semi-Empirical_scopus.pdf Mohd Umair, Siddique and Ansari, Emad and Khan, Sher Afghan and Alrobaian, Abdulrahman (2019) On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit. CFD Letters, 11 (6). pp. 63-71. E-ISSN 2180-1363 http://www.akademiabaru.com/doc/CFDLV11_N6_P63_71.pdf |
| spellingShingle | TL Motor vehicles. Aeronautics. Astronautics Mohd Umair, Siddique Ansari, Emad Khan, Sher Afghan Alrobaian, Abdulrahman On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit |
| title | On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit |
| title_full | On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit |
| title_fullStr | On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit |
| title_full_unstemmed | On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit |
| title_short | On numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit |
| title_sort | on numerical investigation of semi-empirical relation representing development length for a fluid flow in a closed conduit |
| topic | TL Motor vehicles. Aeronautics. Astronautics |
| url | http://irep.iium.edu.my/73078/ http://irep.iium.edu.my/73078/ http://irep.iium.edu.my/73078/7/73078%20On%20Numerical%20Investigation%20of%20Semi-Empirical.pdf http://irep.iium.edu.my/73078/13/73078%20On%20Numerical%20Investigation%20of%20Semi-Empirical_scopus.pdf |