Numerical Simulation of Ground Effect on Circulation Control Airfoil
Circulation control (CC) is used extensively to control the attitude of rudderless aircraft experiencing ground effect in take-off and landing phases. The investigation of ground effect on airfoil CC is necessary to improve flight performance and quality in proximity to the ground. The aerodynamics...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/4985193 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561817367347200 |
|---|---|
| author | Quanbing Sun Zhiwei Shi Weilin Zhang Zhikun Sun Yongliang Chen |
| author_facet | Quanbing Sun Zhiwei Shi Weilin Zhang Zhikun Sun Yongliang Chen |
| author_sort | Quanbing Sun |
| collection | DOAJ |
| description | Circulation control (CC) is used extensively to control the attitude of rudderless aircraft experiencing ground effect in take-off and landing phases. The investigation of ground effect on airfoil CC is necessary to improve flight performance and quality in proximity to the ground. The aerodynamics and flow field of a modified NACA0012 airfoil with CC in ground effect are investigated with numerical simulations. The compressible Reynolds-averaged Navier–Stokes equations with the shear-stress transport k−ω turbulence model equations are solved using the Finite Volume Method (FVM). Simulation results show that the ground effect changes the lift increment per unit jet momentum coefficient, and CC can reverse the polarity ground effect. The effective angle of attack αE and the downwash space downstream airfoil are altered by the ground effect resulting in variations of airfoil surface pressure and lift. Unlike the unbounded flow field, the jet attachment distance is not only determined by the jet momentum coefficient but it can change with the ride height, which is the distance from the ground to the center of the semicircular Coanda surface, for the same jet momentum coefficient. |
| format | Article |
| id | doaj-art-096c708f9c5d4fd289a82273fd31e8fc |
| institution | Kabale University |
| issn | 1687-5974 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-096c708f9c5d4fd289a82273fd31e8fc2025-02-03T01:24:08ZengWileyInternational Journal of Aerospace Engineering1687-59742022-01-01202210.1155/2022/4985193Numerical Simulation of Ground Effect on Circulation Control AirfoilQuanbing Sun0Zhiwei Shi1Weilin Zhang2Zhikun Sun3Yongliang Chen4College of Aerospace EngineeringCollege of Aerospace EngineeringCollege of Aerospace EngineeringCollege of Aerospace EngineeringCollege of Aerospace EngineeringCirculation control (CC) is used extensively to control the attitude of rudderless aircraft experiencing ground effect in take-off and landing phases. The investigation of ground effect on airfoil CC is necessary to improve flight performance and quality in proximity to the ground. The aerodynamics and flow field of a modified NACA0012 airfoil with CC in ground effect are investigated with numerical simulations. The compressible Reynolds-averaged Navier–Stokes equations with the shear-stress transport k−ω turbulence model equations are solved using the Finite Volume Method (FVM). Simulation results show that the ground effect changes the lift increment per unit jet momentum coefficient, and CC can reverse the polarity ground effect. The effective angle of attack αE and the downwash space downstream airfoil are altered by the ground effect resulting in variations of airfoil surface pressure and lift. Unlike the unbounded flow field, the jet attachment distance is not only determined by the jet momentum coefficient but it can change with the ride height, which is the distance from the ground to the center of the semicircular Coanda surface, for the same jet momentum coefficient.http://dx.doi.org/10.1155/2022/4985193 |
| spellingShingle | Quanbing Sun Zhiwei Shi Weilin Zhang Zhikun Sun Yongliang Chen Numerical Simulation of Ground Effect on Circulation Control Airfoil International Journal of Aerospace Engineering |
| title | Numerical Simulation of Ground Effect on Circulation Control Airfoil |
| title_full | Numerical Simulation of Ground Effect on Circulation Control Airfoil |
| title_fullStr | Numerical Simulation of Ground Effect on Circulation Control Airfoil |
| title_full_unstemmed | Numerical Simulation of Ground Effect on Circulation Control Airfoil |
| title_short | Numerical Simulation of Ground Effect on Circulation Control Airfoil |
| title_sort | numerical simulation of ground effect on circulation control airfoil |
| url | http://dx.doi.org/10.1155/2022/4985193 |
| work_keys_str_mv | AT quanbingsun numericalsimulationofgroundeffectoncirculationcontrolairfoil AT zhiweishi numericalsimulationofgroundeffectoncirculationcontrolairfoil AT weilinzhang numericalsimulationofgroundeffectoncirculationcontrolairfoil AT zhikunsun numericalsimulationofgroundeffectoncirculationcontrolairfoil AT yongliangchen numericalsimulationofgroundeffectoncirculationcontrolairfoil |