Someone did a CFD analysis of Gripen wing on MKI.
Gripen wing on the Sukhoi Su-30 body model
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Visualization of the streamlines.
From the study, it was found that the application of the Gripen wing on the
modified Sukhoi Su-30-like aircraft would affect the aerodynamic character of the fighter.
From the results of flow visualization analysis and aerodynamic force analysis using CFD, found that the application of the Gripen wing affected the formation of vortex nuclei and flow interactions that influenced the lift force coefficient, location of the vortex breakdown,and pressure distribution that occurred. At low attack angles (<40o), the best conditions occur in the standard configuration.
The Gripen wing results in a higher CL value.
From the research of modified Sukhoi Su-30-like aircraft with Gripen wing, it was found
that the slotted leading edge of the additional Gripen wing caused a strong vortex core and therefore additional pointy tip produced two vortex cores, namely ordinary inner rolled-up vortices in the inner wing leading edge and outer rolled-up wing leading edge of the slotted gap.
Rolled-up vortex cores due to slotted gaps in the inner rolled-up vortex cores began to coalesce to become one stronger vortex core, which dragged the inner vortex core in the wing leading edge. As a result, the CL of the modified Sukhoi Su-30-like aircraft with Gripen wing became higher.
Flow over the canard tend to curl out, as well as above the wing at the end of the leading edge tends to rolled-up and behind it tends to laminate curved out. As AoA increased, the vortex breakdown location approaching the leading edge of the wing.