Studies on 2D and 3D Boundary layer Blockage and External Flow Choking at Moving Wing in Ground Effect

2018 ◽  
Author(s):  
VR Sanal Kumar ◽  
Vignesh Saravanan ◽  
Vivek Srinivasan ◽  
Ganesh Shankar S ◽  
Sivabalan Mani ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Ground Effect ◽  
External Flow ◽  
Flow Choking ◽  
2D And 3D ◽  
Wing In Ground Effect

Correction: Studies on 2D and 3D Boundary layer Blockage and External Flow Choking at Moving Wing in Ground Effect

2018 ◽  
Author(s):  
VR Sanal Kumar ◽  
Vignesh Saravanan ◽  
Vivek Srinivasan ◽  
Ganesh Shankar S ◽  
Sivabalan Mani ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Ground Effect ◽  
External Flow ◽  
Flow Choking ◽  
2D And 3D ◽  
Wing In Ground Effect

Studies on Boundarylayer Blockage and External Flow Choking at Moving Wing in Ground Effect

2016 ◽  
Author(s):  
S Vignesh ◽  
S Vivek ◽  
S. Ganesh Shankar ◽  
S. Ajith ◽  
Sivabalan Mani ◽  
...  
Keyword(s):  
Ground Effect ◽  
External Flow ◽  
Flow Choking ◽  
Wing In Ground Effect

Phenomenological Introduction of Propulsion Aspect of External Flow Choking at Wing in Ground Effect

2014 ◽  
Author(s):  
VR Sanal Kumar ◽  
S. Ganesh Shankar ◽  
A. Saravanan ◽  
C. Lenin ◽  
N. Santhosh Kumar ◽  
...  
Keyword(s):  
Ground Effect ◽  
External Flow ◽  
Flow Choking ◽  
Wing In Ground Effect

Boundary layer effects on a wing in ground‐effect

2010 ◽  
Vol 82 (2) ◽  
pp. 99-106 ◽  
Author(s):  
D.W. Marshall ◽  
S.J. Newman ◽  
C.B. Williams
Keyword(s):  
Boundary Layer ◽  
Ground Effect ◽  
Wing In Ground Effect

scholarly journals Boundary Layer Control with a Moving Belt System for Studies on Wing-in-Ground-Effect.

1999 ◽  
Vol 42 (4) ◽  
pp. 619-625 ◽  
Author(s):  
Mohammed Rafiuddin AHMED ◽  
Hideyuki SIRAGANE ◽  
Yasuaki KOHAMA
Keyword(s):  
Boundary Layer ◽  
Ground Effect ◽  
Boundary Layer Control ◽  
Belt System ◽  
Layer Control ◽  
Wing In Ground Effect

scholarly journals 309 Boundary-Layer Transition on a Wing in Ground Effect

2008 ◽  
Vol 2008.44 (0) ◽  
pp. 91-92
Author(s):  
Yuichiro Saiki ◽  
Yoshihiro Yamaguchi ◽  
Toshiyuki Arima ◽  
Takuma Kato ◽  
Yasuaki Kohama
Keyword(s):  
Boundary Layer ◽  
Ground Effect ◽  
Boundary Layer Transition ◽  
Layer Transition ◽  
Wing In Ground Effect

scholarly journals Forcing Boundary-Layer Transition on a Single-Element Wing in Ground Effect

2017 ◽  
Vol 139 (10) ◽  
Author(s):  
Luke S. Roberts ◽  
Mark V. Finnis ◽  
Kevin Knowles
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Ground Effect ◽  
Boundary Layer Transition ◽  
Single Element ◽  
Trailing Edge ◽  
Layer Transition ◽  
Transition Mechanism ◽  
Edge Separation ◽  
Wing In Ground Effect

The transition from a laminar to turbulent boundary layer on a wing operating at low Reynolds numbers can have a large effect on its aerodynamic performance. For a wing operating in ground effect, where very low pressures and large pressure gradients are common, the effect is even greater. A study was conducted into the effect of forcing boundary-layer transition on the suction surface of an inverted GA(W)-1 section single-element wing in ground effect, which is representative of a racing-car front wing. Transition to a turbulent boundary layer was forced at varying chordwise locations and compared to the free-transition case using experimental and computational methods. Forcing transition caused the laminar-separation bubble, which was the unforced transition mechanism, to be eliminated in all cases and trailing-edge separation to occur instead. The aerodynamic forces produced by the wing with trailing-edge separation were shown to be dependent on trip location. As the trip was moved upstream the separation point also moved upstream, this led to an increase in drag and reduction in downforce. In addition to significant changes to the pressure field around the wing, turbulent energy in the wake was considerably reduced by forcing transition. The differences between free- and forced-transition wings were shown to be significant, highlighting the importance of modeling transition for ground-effect wings. Additionally, it has been shown that while it is possible to reproduce the force coefficient of a higher Reynolds-number case by forcing the boundary layer to a turbulent state, the flow features, both on-surface and off-surface, are not recreated.

305 Boundary-Layer Transition on a Swept Wing in Ground Effect

2009 ◽  
Vol 2009.45 (0) ◽  
pp. 81-82
Author(s):  
Takuma KATO ◽  
Yuichiro SAIKI ◽  
Yoshihiro YAMAGUCHI ◽  
Toshiyuki ARIMA ◽  
Yasuaki KOHAMA
Keyword(s):  
Boundary Layer ◽  
Ground Effect ◽  
Boundary Layer Transition ◽  
Swept Wing ◽  
Layer Transition ◽  
Wing In Ground Effect

The theoretical prediction of the boundary-layer-blockage and external flow choking at moving aircraft in ground effects

2021 ◽  
Vol 33 (3) ◽  
pp. 036108
Author(s):  
V. R. Sanal Kumar ◽  
Vignesh Saravanan ◽  
Vivek Srinivasan ◽  
S. Ganesh Shankar ◽  
Sivabalan Mani ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Theoretical Prediction ◽  
External Flow ◽  
Flow Choking ◽  
Ground Effects
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