Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire
The urban heat island phenomenon has become a significant concern worldwide and its impact can be devastated. One of the most common factors of the UHI is poor ventilation i.e. the incapability of airflow to reduce the temperature in an urban area due to velocity deficit from a poorly designed city...
| Main Authors: | , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English English |
| Published: |
EIT Digital Library
2022
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/37185/ http://umpir.ump.edu.my/id/eprint/37185/9/NUMERICAL%20SIMULATION%20ON%20THE%20ELUCIDATION%20OF%20WAKE%20FLOW%20STRUCTURE%20BEHIND%20A%20SINGLE%20QUARTER%20ELLIPTIC-WEDGE%20SPIRE%20%282%29.docx http://umpir.ump.edu.my/id/eprint/37185/10/2023%20Numerical_simulation_on_the_elucidation_of_wake_flow_structure_behind_a_single_quarter_elliptic-wedge_spire.pdf |
| _version_ | 1848825183461179392 |
|---|---|
| author | Muhammad Arifuddin, Fitriady Nurizzatul Atikha, Rahmat Ahmad Faiz, Mohammad |
| author_facet | Muhammad Arifuddin, Fitriady Nurizzatul Atikha, Rahmat Ahmad Faiz, Mohammad |
| author_sort | Muhammad Arifuddin, Fitriady |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | The urban heat island phenomenon has become a significant concern worldwide and its impact can be devastated. One of the most common factors of the UHI is poor ventilation i.e. the incapability of airflow to reduce the temperature in an urban area due to velocity deficit from a poorly designed city layout. Hence, a good understanding of the interaction between the wake flow behind a building and the urban boundary layer is necessary. Therefore, a study investigates the wake flow structure behind a single spire, which imitates a skyscraper, and its aerodynamic interaction with the smooth wall boundary layer based on CFD by utilising OpenFOAM® with the k-ε turbulence model has been conducted. The lateral velocity profile was extracted and analysed to observe the velocity deficit profile. It was found that the lateral velocity profile of the current study is aligned with the previous WT experimental data. The turbulence generated by the spire has the capability to preserve the wake flow against the recovery process both in vertical and streamwise directions. Furthermore, the distance required by the wake flow to be fully recovered is estimated to be around 40S in the streamwise direction. Finally, based on the wake flow and gradient diffusion model relation, it can be concluded that the flow structure above the BLH is specified as a typical 2D wake of a bluff body in a free stream for the near wake region only. |
| first_indexed | 2025-11-15T03:24:52Z |
| format | Conference or Workshop Item |
| id | ump-37185 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:24:52Z |
| publishDate | 2022 |
| publisher | EIT Digital Library |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-371852023-05-15T04:05:01Z http://umpir.ump.edu.my/id/eprint/37185/ Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire Muhammad Arifuddin, Fitriady Nurizzatul Atikha, Rahmat Ahmad Faiz, Mohammad TJ Mechanical engineering and machinery The urban heat island phenomenon has become a significant concern worldwide and its impact can be devastated. One of the most common factors of the UHI is poor ventilation i.e. the incapability of airflow to reduce the temperature in an urban area due to velocity deficit from a poorly designed city layout. Hence, a good understanding of the interaction between the wake flow behind a building and the urban boundary layer is necessary. Therefore, a study investigates the wake flow structure behind a single spire, which imitates a skyscraper, and its aerodynamic interaction with the smooth wall boundary layer based on CFD by utilising OpenFOAM® with the k-ε turbulence model has been conducted. The lateral velocity profile was extracted and analysed to observe the velocity deficit profile. It was found that the lateral velocity profile of the current study is aligned with the previous WT experimental data. The turbulence generated by the spire has the capability to preserve the wake flow against the recovery process both in vertical and streamwise directions. Furthermore, the distance required by the wake flow to be fully recovered is estimated to be around 40S in the streamwise direction. Finally, based on the wake flow and gradient diffusion model relation, it can be concluded that the flow structure above the BLH is specified as a typical 2D wake of a bluff body in a free stream for the near wake region only. EIT Digital Library 2022-09-07 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/37185/9/NUMERICAL%20SIMULATION%20ON%20THE%20ELUCIDATION%20OF%20WAKE%20FLOW%20STRUCTURE%20BEHIND%20A%20SINGLE%20QUARTER%20ELLIPTIC-WEDGE%20SPIRE%20%282%29.docx pdf en http://umpir.ump.edu.my/id/eprint/37185/10/2023%20Numerical_simulation_on_the_elucidation_of_wake_flow_structure_behind_a_single_quarter_elliptic-wedge_spire.pdf Muhammad Arifuddin, Fitriady and Nurizzatul Atikha, Rahmat and Ahmad Faiz, Mohammad (2022) Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire. In: Engineering Technology International Conference 2022 (ETIC 2022) , 7 - 8 September 2022 , Universiti Malaysia Pahang, Pahang. pp. 1-9.. ISBN 978-1-83953-782-0 (Published) https://etic.ump.edu.my/index.php/en/schedule |
| spellingShingle | TJ Mechanical engineering and machinery Muhammad Arifuddin, Fitriady Nurizzatul Atikha, Rahmat Ahmad Faiz, Mohammad Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire |
| title | Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire |
| title_full | Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire |
| title_fullStr | Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire |
| title_full_unstemmed | Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire |
| title_short | Numerical simulation on the elucidation of wake flow structure behind a single Quarter Elliptic-Wedge Spire |
| title_sort | numerical simulation on the elucidation of wake flow structure behind a single quarter elliptic-wedge spire |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/37185/ http://umpir.ump.edu.my/id/eprint/37185/ http://umpir.ump.edu.my/id/eprint/37185/9/NUMERICAL%20SIMULATION%20ON%20THE%20ELUCIDATION%20OF%20WAKE%20FLOW%20STRUCTURE%20BEHIND%20A%20SINGLE%20QUARTER%20ELLIPTIC-WEDGE%20SPIRE%20%282%29.docx http://umpir.ump.edu.my/id/eprint/37185/10/2023%20Numerical_simulation_on_the_elucidation_of_wake_flow_structure_behind_a_single_quarter_elliptic-wedge_spire.pdf |