Experimental Studies of Active and Passive Flow Control Techniques Applied in a Twin Air-Intake
The flow control in twin air-intakes is necessary to improve the performance characteristics, since the flow traveling through curved and diffused paths becomes complex, especially after merging. The paper presents a comparison between two well-known techniques of flow control: active and passive. I...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/523759 |
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| author | Akshoy Ranjan Paul Shrey Joshi Aman Jindal Shivam P. Maurya Anuj Jain |
| author_facet | Akshoy Ranjan Paul Shrey Joshi Aman Jindal Shivam P. Maurya Anuj Jain |
| author_sort | Akshoy Ranjan Paul |
| collection | DOAJ |
| description | The flow control in twin air-intakes is necessary to improve the performance characteristics, since the flow traveling through curved and diffused paths becomes complex, especially after merging. The paper presents a comparison between two well-known techniques of flow control: active and passive. It presents an effective design of a vortex generator jet (VGJ) and a vane-type passive vortex generator (VG) and uses them in twin air-intake duct in different combinations to establish their effectiveness in improving the performance characteristics. The VGJ is designed to insert flow from side wall at pitch angle of 90 degrees and 45 degrees. Corotating (parallel) and counterrotating (V-shape) are the configuration of vane type VG. It is observed that VGJ has the potential to change the flow pattern drastically as compared to vane-type VG. While the VGJ is directed perpendicular to the side walls of the air-intake at a pitch angle of 90 degree, static pressure recovery is increased by 7.8% and total pressure loss is reduced by 40.7%, which is the best among all other cases tested for VGJ. For bigger-sized VG attached to the side walls of the air-intake, static pressure recovery is increased by 5.3%, but total pressure loss is reduced by only 4.5% as compared to all other cases of VG. |
| format | Article |
| id | doaj-art-2e28a95e893642d28ac9cf92b1e2c71c |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-2e28a95e893642d28ac9cf92b1e2c71c2025-02-03T05:53:02ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/523759523759Experimental Studies of Active and Passive Flow Control Techniques Applied in a Twin Air-IntakeAkshoy Ranjan Paul0Shrey Joshi1Aman Jindal2Shivam P. Maurya3Anuj Jain4Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Allahabad 211004, IndiaDepartment of Mechanical Engineering, Motilal Nehru National Institute of Technology Allahabad, Allahabad 211004, IndiaDepartment of Mechanical Engineering, Motilal Nehru National Institute of Technology Allahabad, Allahabad 211004, IndiaDepartment of Chemical Engineering, Motilal Nehru National Institute of Technology Allahabad, Allahabad 211004, IndiaDepartment of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Allahabad 211004, IndiaThe flow control in twin air-intakes is necessary to improve the performance characteristics, since the flow traveling through curved and diffused paths becomes complex, especially after merging. The paper presents a comparison between two well-known techniques of flow control: active and passive. It presents an effective design of a vortex generator jet (VGJ) and a vane-type passive vortex generator (VG) and uses them in twin air-intake duct in different combinations to establish their effectiveness in improving the performance characteristics. The VGJ is designed to insert flow from side wall at pitch angle of 90 degrees and 45 degrees. Corotating (parallel) and counterrotating (V-shape) are the configuration of vane type VG. It is observed that VGJ has the potential to change the flow pattern drastically as compared to vane-type VG. While the VGJ is directed perpendicular to the side walls of the air-intake at a pitch angle of 90 degree, static pressure recovery is increased by 7.8% and total pressure loss is reduced by 40.7%, which is the best among all other cases tested for VGJ. For bigger-sized VG attached to the side walls of the air-intake, static pressure recovery is increased by 5.3%, but total pressure loss is reduced by only 4.5% as compared to all other cases of VG.http://dx.doi.org/10.1155/2013/523759 |
| spellingShingle | Akshoy Ranjan Paul Shrey Joshi Aman Jindal Shivam P. Maurya Anuj Jain Experimental Studies of Active and Passive Flow Control Techniques Applied in a Twin Air-Intake The Scientific World Journal |
| title | Experimental Studies of Active and Passive Flow Control Techniques Applied in a Twin Air-Intake |
| title_full | Experimental Studies of Active and Passive Flow Control Techniques Applied in a Twin Air-Intake |
| title_fullStr | Experimental Studies of Active and Passive Flow Control Techniques Applied in a Twin Air-Intake |
| title_full_unstemmed | Experimental Studies of Active and Passive Flow Control Techniques Applied in a Twin Air-Intake |
| title_short | Experimental Studies of Active and Passive Flow Control Techniques Applied in a Twin Air-Intake |
| title_sort | experimental studies of active and passive flow control techniques applied in a twin air intake |
| url | http://dx.doi.org/10.1155/2013/523759 |
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