Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine
In this study, the interaction of horizontal axis wind turbine (HAWT) with neutrally stratified atmospheric boundary layer (ABL) and its wake characteristics are investigated. Important wake characteristics of wind turbine such as velocity deficit and turbulence level are analyzed. For this purpose,...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/151279 |
| _version_ | 1824453669024694272 |
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| author | Ahmed Kabir, Ijaz Fazil Syed Ng, Eddie Yin Kwee |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Ahmed Kabir, Ijaz Fazil Syed Ng, Eddie Yin Kwee |
| author_sort | Ahmed Kabir, Ijaz Fazil Syed |
| collection | NTU |
| description | In this study, the interaction of horizontal axis wind turbine (HAWT) with neutrally stratified atmospheric boundary layer (ABL) and its wake characteristics are investigated. Important wake characteristics of wind turbine such as velocity deficit and turbulence level are analyzed. For this purpose, Unsteady Reynolds-Averaged Navier-Stokes (URANS) using k-ε turbulence closure models are performed using commercial Computational Fluid Dynamics (CFD) software called ANSYS FLUENT. Full rotor CFD simulations of the NREL Phase VI wind turbine by virtually placing on a flat surface with different aerodynamic roughness lengths are performed. Discussions on effective modelling of horizontal homogeneity for the undisturbed ABL is included. The influence of inflow ABL's turbulence level in the wake velocity recovery and the ground effect on the wake turbulence intensity (TI) is analyzed. In addition, comparison of rotor aerodynamics of wind turbine in different terrains is performed using pressure coefficient distributions. Finally, the necessity of inclusion of TI recovery in addition to velocity recovery in the wake for the wind farm alignment is discussed. |
| first_indexed | 2025-02-19T03:10:05Z |
| format | Journal Article |
| id | ntu-10356/151279 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:10:05Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1512792021-06-15T03:42:22Z Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine Ahmed Kabir, Ijaz Fazil Syed Ng, Eddie Yin Kwee School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Wake Aerodynamics Velocity Deficit In this study, the interaction of horizontal axis wind turbine (HAWT) with neutrally stratified atmospheric boundary layer (ABL) and its wake characteristics are investigated. Important wake characteristics of wind turbine such as velocity deficit and turbulence level are analyzed. For this purpose, Unsteady Reynolds-Averaged Navier-Stokes (URANS) using k-ε turbulence closure models are performed using commercial Computational Fluid Dynamics (CFD) software called ANSYS FLUENT. Full rotor CFD simulations of the NREL Phase VI wind turbine by virtually placing on a flat surface with different aerodynamic roughness lengths are performed. Discussions on effective modelling of horizontal homogeneity for the undisturbed ABL is included. The influence of inflow ABL's turbulence level in the wake velocity recovery and the ground effect on the wake turbulence intensity (TI) is analyzed. In addition, comparison of rotor aerodynamics of wind turbine in different terrains is performed using pressure coefficient distributions. Finally, the necessity of inclusion of TI recovery in addition to velocity recovery in the wake for the wind farm alignment is discussed. 2021-06-15T03:42:22Z 2021-06-15T03:42:22Z 2019 Journal Article Ahmed Kabir, I. F. S. & Ng, E. Y. K. (2019). Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine. Renewable Energy, 130, 1185-1197. https://dx.doi.org/10.1016/j.renene.2018.08.083 0960-1481 https://hdl.handle.net/10356/151279 10.1016/j.renene.2018.08.083 2-s2.0-85053199429 130 1185 1197 en Renewable Energy © 2018 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Wake Aerodynamics Velocity Deficit Ahmed Kabir, Ijaz Fazil Syed Ng, Eddie Yin Kwee Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine |
| title | Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine |
| title_full | Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine |
| title_fullStr | Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine |
| title_full_unstemmed | Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine |
| title_short | Effect of different atmospheric boundary layers on the wake characteristics of NREL Phase VI wind turbine |
| title_sort | effect of different atmospheric boundary layers on the wake characteristics of nrel phase vi wind turbine |
| topic | Engineering::Mechanical engineering Wake Aerodynamics Velocity Deficit |
| url | https://hdl.handle.net/10356/151279 |
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