Analytical Modeling of Shrouded Rotors in Hover with Experimental and Computational Validation
Rotors have been utilized for aircraft propulsion since the dawn of aviation, but their performance can degrade significantly if not properly designed. This study focuses on developing an accurate design tool and model validation for shrouded rotors. An experimental test rig was designed and manufac...
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| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Actuators |
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| Online Access: | https://www.mdpi.com/2076-0825/14/3/138 |
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| author | Abdallah Dayhoum Alejandro Ramirez-Serrano Robert J. Martinuzzi |
| author_facet | Abdallah Dayhoum Alejandro Ramirez-Serrano Robert J. Martinuzzi |
| author_sort | Abdallah Dayhoum |
| collection | DOAJ |
| description | Rotors have been utilized for aircraft propulsion since the dawn of aviation, but their performance can degrade significantly if not properly designed. This study focuses on developing an accurate design tool and model validation for shrouded rotors. An experimental test rig was designed and manufactured to measure the rotor thrust and total thrust separately as well as the rotor torque. A key aspect was to account for the impact of a test rig on experimental results using computational simulations for the shrouded rotor configuration with and without the test rig. The findings indicate that the effects of the test rig were minimal and could be neglected, ensuring the validity of the experimental data compared to the analytical model. The analytical model employs a hybrid approach combining blade element momentum theory (BEMT) and the sphere-cap model which are used in conjunction with the shrouded rotor inflow ratio, as well as post-stall and tip gap clearance models. BEMT is used to calculate rotor performance, while the sphere-cap model addresses the aerodynamic influence of the shroud. The results demonstrate that the analytical model predicts shrouded rotor performance with considerable accuracy, addressing both the rotor dynamics and the shroud’s contribution to performance. |
| format | Article |
| id | doaj-art-d29831a7f83249549fe661bceeb0de30 |
| institution | Kabale University |
| issn | 2076-0825 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj-art-d29831a7f83249549fe661bceeb0de302025-08-20T03:40:41ZengMDPI AGActuators2076-08252025-03-0114313810.3390/act14030138Analytical Modeling of Shrouded Rotors in Hover with Experimental and Computational ValidationAbdallah Dayhoum0Alejandro Ramirez-Serrano1Robert J. Martinuzzi2Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, CanadaMechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, CanadaMechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, CanadaRotors have been utilized for aircraft propulsion since the dawn of aviation, but their performance can degrade significantly if not properly designed. This study focuses on developing an accurate design tool and model validation for shrouded rotors. An experimental test rig was designed and manufactured to measure the rotor thrust and total thrust separately as well as the rotor torque. A key aspect was to account for the impact of a test rig on experimental results using computational simulations for the shrouded rotor configuration with and without the test rig. The findings indicate that the effects of the test rig were minimal and could be neglected, ensuring the validity of the experimental data compared to the analytical model. The analytical model employs a hybrid approach combining blade element momentum theory (BEMT) and the sphere-cap model which are used in conjunction with the shrouded rotor inflow ratio, as well as post-stall and tip gap clearance models. BEMT is used to calculate rotor performance, while the sphere-cap model addresses the aerodynamic influence of the shroud. The results demonstrate that the analytical model predicts shrouded rotor performance with considerable accuracy, addressing both the rotor dynamics and the shroud’s contribution to performance.https://www.mdpi.com/2076-0825/14/3/138number of bladesshrouded rotoropen rotorsexperimental aerodynamics |
| spellingShingle | Abdallah Dayhoum Alejandro Ramirez-Serrano Robert J. Martinuzzi Analytical Modeling of Shrouded Rotors in Hover with Experimental and Computational Validation Actuators number of blades shrouded rotor open rotors experimental aerodynamics |
| title | Analytical Modeling of Shrouded Rotors in Hover with Experimental and Computational Validation |
| title_full | Analytical Modeling of Shrouded Rotors in Hover with Experimental and Computational Validation |
| title_fullStr | Analytical Modeling of Shrouded Rotors in Hover with Experimental and Computational Validation |
| title_full_unstemmed | Analytical Modeling of Shrouded Rotors in Hover with Experimental and Computational Validation |
| title_short | Analytical Modeling of Shrouded Rotors in Hover with Experimental and Computational Validation |
| title_sort | analytical modeling of shrouded rotors in hover with experimental and computational validation |
| topic | number of blades shrouded rotor open rotors experimental aerodynamics |
| url | https://www.mdpi.com/2076-0825/14/3/138 |
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