Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers
The application of unsteady incompressible flow phenomenon over the bluff bodies has received the attention of many researchers due to the rich and complex physics underpinning these flows, and thus requiring special attention in their modelling and numerical simulations. The wake that forms at the...
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Online Access: | http://resolver.tudelft.nl/uuid:4081d3a6-8217-4c00-8d2a-a607c26b9438 https://doi.org/10.1016/j.oceaneng.2022.111611 |
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fttudelft:oai:tudelft.nl:uuid:4081d3a6-8217-4c00-8d2a-a607c26b9438 2024-04-28T08:22:55+00:00 Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers Lekkala, Malakonda Reddy (author) Latheef, Mohamed (author) Jung, Jae Hwan (author) Coraddu, A. (author) Zhu, Hongjun (author) Srinil, Narakorn (author) Lee, Byung Hyuk (author) Kim, Do Kyun (author) 2022 http://resolver.tudelft.nl/uuid:4081d3a6-8217-4c00-8d2a-a607c26b9438 https://doi.org/10.1016/j.oceaneng.2022.111611 en eng http://www.scopus.com/inward/record.url?scp=85133191017&partnerID=8YFLogxK Ocean Engineering--0029-8018--342642e0-44b2-4dc2-b5f7-13808d946508 http://resolver.tudelft.nl/uuid:4081d3a6-8217-4c00-8d2a-a607c26b9438 https://doi.org/10.1016/j.oceaneng.2022.111611 © 2022 Malakonda Reddy Lekkala, Mohamed Latheef, Jae Hwan Jung, A. Coraddu, Hongjun Zhu, Narakorn Srinil, Byung Hyuk Lee, Do Kyun Kim Biomimetic geometries Computational fluid dynamics (CFD) Cylinder geometry Flow around bluff body Flow characteristics Hydrodynamic coefficients Reynolds number Wake pattern review 2022 fttudelft https://doi.org/10.1016/j.oceaneng.2022.111611 2024-04-10T00:10:22Z The application of unsteady incompressible flow phenomenon over the bluff bodies has received the attention of many researchers due to the rich and complex physics underpinning these flows, and thus requiring special attention in their modelling and numerical simulations. The wake that forms at the leeside of the bluff body is of particular interest. Reynolds number and geometry are in turn two prominent parameters that govern the formation and subsequent behaviour of this wake. This paper reviews the wake formations for different cylindrical bluff bodies cross-sections such as circular, elliptical, helically twisted elliptical, symmetric wavy, asymmetric wavy, and harbor seal vibrissae cylinders. Alongside the Reynolds number and geometrical shape, the impacts of rotational rate, aspect ratio, angle of attack, and gap ratio between the cylinder and the bottom wall on the hydrodynamic coefficients, Strouhal number, recirculation length and suppression of vortex shedding in the cylinder wake are investigated. In addition, the variation of hydrodynamic coefficients for different cylindrical shapes are compared. Finally, concluding remarks are drawn based on recent advances in understanding the flow features and predictions with CFD methods. Ship Design, Production and Operations Review harbor seal Delft University of Technology: Institutional Repository Ocean Engineering 261 111611 |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
topic |
Biomimetic geometries Computational fluid dynamics (CFD) Cylinder geometry Flow around bluff body Flow characteristics Hydrodynamic coefficients Reynolds number Wake pattern |
spellingShingle |
Biomimetic geometries Computational fluid dynamics (CFD) Cylinder geometry Flow around bluff body Flow characteristics Hydrodynamic coefficients Reynolds number Wake pattern Lekkala, Malakonda Reddy (author) Latheef, Mohamed (author) Jung, Jae Hwan (author) Coraddu, A. (author) Zhu, Hongjun (author) Srinil, Narakorn (author) Lee, Byung Hyuk (author) Kim, Do Kyun (author) Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers |
topic_facet |
Biomimetic geometries Computational fluid dynamics (CFD) Cylinder geometry Flow around bluff body Flow characteristics Hydrodynamic coefficients Reynolds number Wake pattern |
description |
The application of unsteady incompressible flow phenomenon over the bluff bodies has received the attention of many researchers due to the rich and complex physics underpinning these flows, and thus requiring special attention in their modelling and numerical simulations. The wake that forms at the leeside of the bluff body is of particular interest. Reynolds number and geometry are in turn two prominent parameters that govern the formation and subsequent behaviour of this wake. This paper reviews the wake formations for different cylindrical bluff bodies cross-sections such as circular, elliptical, helically twisted elliptical, symmetric wavy, asymmetric wavy, and harbor seal vibrissae cylinders. Alongside the Reynolds number and geometrical shape, the impacts of rotational rate, aspect ratio, angle of attack, and gap ratio between the cylinder and the bottom wall on the hydrodynamic coefficients, Strouhal number, recirculation length and suppression of vortex shedding in the cylinder wake are investigated. In addition, the variation of hydrodynamic coefficients for different cylindrical shapes are compared. Finally, concluding remarks are drawn based on recent advances in understanding the flow features and predictions with CFD methods. Ship Design, Production and Operations |
format |
Review |
author |
Lekkala, Malakonda Reddy (author) Latheef, Mohamed (author) Jung, Jae Hwan (author) Coraddu, A. (author) Zhu, Hongjun (author) Srinil, Narakorn (author) Lee, Byung Hyuk (author) Kim, Do Kyun (author) |
author_facet |
Lekkala, Malakonda Reddy (author) Latheef, Mohamed (author) Jung, Jae Hwan (author) Coraddu, A. (author) Zhu, Hongjun (author) Srinil, Narakorn (author) Lee, Byung Hyuk (author) Kim, Do Kyun (author) |
author_sort |
Lekkala, Malakonda Reddy (author) |
title |
Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers |
title_short |
Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers |
title_full |
Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers |
title_fullStr |
Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers |
title_full_unstemmed |
Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers |
title_sort |
recent advances in understanding the flow over bluff bodies with different geometries at moderate reynolds numbers |
publishDate |
2022 |
url |
http://resolver.tudelft.nl/uuid:4081d3a6-8217-4c00-8d2a-a607c26b9438 https://doi.org/10.1016/j.oceaneng.2022.111611 |
genre |
harbor seal |
genre_facet |
harbor seal |
op_relation |
http://www.scopus.com/inward/record.url?scp=85133191017&partnerID=8YFLogxK Ocean Engineering--0029-8018--342642e0-44b2-4dc2-b5f7-13808d946508 http://resolver.tudelft.nl/uuid:4081d3a6-8217-4c00-8d2a-a607c26b9438 https://doi.org/10.1016/j.oceaneng.2022.111611 |
op_rights |
© 2022 Malakonda Reddy Lekkala, Mohamed Latheef, Jae Hwan Jung, A. Coraddu, Hongjun Zhu, Narakorn Srinil, Byung Hyuk Lee, Do Kyun Kim |
op_doi |
https://doi.org/10.1016/j.oceaneng.2022.111611 |
container_title |
Ocean Engineering |
container_volume |
261 |
container_start_page |
111611 |
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1797584221949132800 |