Numerical Study on Combustion-Driven Jet Actuation for Aerodynamic Control of Airfoil Flows
In this study, a numerical investigation is conducted on combustion-driven pulsed-jet actuation to control the flow around a lifting surface. Based on relevant experimental measurements and computations, high-speed jets are generated from the impulsive variation in pressure at the actuator boundary....
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/24/8008 |
| _version_ | 1797381252816306176 |
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| author | Taesoon Kim Suhyeon Park Ilyoup Sohn |
| author_facet | Taesoon Kim Suhyeon Park Ilyoup Sohn |
| author_sort | Taesoon Kim |
| collection | DOAJ |
| description | In this study, a numerical investigation is conducted on combustion-driven pulsed-jet actuation to control the flow around a lifting surface. Based on relevant experimental measurements and computations, high-speed jets are generated from the impulsive variation in pressure at the actuator boundary. A supersonic jet flow is momentarily generated by combustion in a reaction chamber of the actuator, and the flow interacts with the external flow around the lifting surface and alters the aerodynamic characteristics. The computational results indicate that the flow control performance of the jet actuation is significant at a high-incidence angle of attack, such as beyond the stall angle, whereas the impact is minimal at low angles of attack, such as in the linear lift region. Repetitive jet actuation can produce additional momentum to the external flow and alters the pressure distribution on the suction surface, particularly downstream of the actuator location. This pressure variation from the actuation yields an additional lift force on the lifting surface and reduces the amplitude of the aerodynamic moment at a given angle of attack, thus enhancing the aerodynamic performance of the airfoil. |
| first_indexed | 2024-03-08T20:48:44Z |
| format | Article |
| id | doaj.art-5f55321cc95f4489bbffafc5c0c9cc3d |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-08T20:48:44Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5f55321cc95f4489bbffafc5c0c9cc3d2023-12-22T14:05:47ZengMDPI AGEnergies1996-10732023-12-011624800810.3390/en16248008Numerical Study on Combustion-Driven Jet Actuation for Aerodynamic Control of Airfoil FlowsTaesoon Kim0Suhyeon Park1Ilyoup Sohn2Intelligent Simulation Center, Korea Institute of Science and Technology Information, Daejeon 34141, Republic of KoreaSchool of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang 10540, Republic of KoreaIntelligent Simulation Center, Korea Institute of Science and Technology Information, Daejeon 34141, Republic of KoreaIn this study, a numerical investigation is conducted on combustion-driven pulsed-jet actuation to control the flow around a lifting surface. Based on relevant experimental measurements and computations, high-speed jets are generated from the impulsive variation in pressure at the actuator boundary. A supersonic jet flow is momentarily generated by combustion in a reaction chamber of the actuator, and the flow interacts with the external flow around the lifting surface and alters the aerodynamic characteristics. The computational results indicate that the flow control performance of the jet actuation is significant at a high-incidence angle of attack, such as beyond the stall angle, whereas the impact is minimal at low angles of attack, such as in the linear lift region. Repetitive jet actuation can produce additional momentum to the external flow and alters the pressure distribution on the suction surface, particularly downstream of the actuator location. This pressure variation from the actuation yields an additional lift force on the lifting surface and reduces the amplitude of the aerodynamic moment at a given angle of attack, thus enhancing the aerodynamic performance of the airfoil.https://www.mdpi.com/1996-1073/16/24/8008combustion-powered actuationactive flow controlimpulse jet actuationflow separationcomputational fluid dynamics |
| spellingShingle | Taesoon Kim Suhyeon Park Ilyoup Sohn Numerical Study on Combustion-Driven Jet Actuation for Aerodynamic Control of Airfoil Flows Energies combustion-powered actuation active flow control impulse jet actuation flow separation computational fluid dynamics |
| title | Numerical Study on Combustion-Driven Jet Actuation for Aerodynamic Control of Airfoil Flows |
| title_full | Numerical Study on Combustion-Driven Jet Actuation for Aerodynamic Control of Airfoil Flows |
| title_fullStr | Numerical Study on Combustion-Driven Jet Actuation for Aerodynamic Control of Airfoil Flows |
| title_full_unstemmed | Numerical Study on Combustion-Driven Jet Actuation for Aerodynamic Control of Airfoil Flows |
| title_short | Numerical Study on Combustion-Driven Jet Actuation for Aerodynamic Control of Airfoil Flows |
| title_sort | numerical study on combustion driven jet actuation for aerodynamic control of airfoil flows |
| topic | combustion-powered actuation active flow control impulse jet actuation flow separation computational fluid dynamics |
| url | https://www.mdpi.com/1996-1073/16/24/8008 |
| work_keys_str_mv | AT taesoonkim numericalstudyoncombustiondrivenjetactuationforaerodynamiccontrolofairfoilflows AT suhyeonpark numericalstudyoncombustiondrivenjetactuationforaerodynamiccontrolofairfoilflows AT ilyoupsohn numericalstudyoncombustiondrivenjetactuationforaerodynamiccontrolofairfoilflows |