At this Reynolds number in free laminar-turbulent transition a lift curve obtained by experimental methods is between RFOIL and XFOIL codes till zero angle of attack.
RFOIL code predicts the lift curve very well even in the post stall region.
The RFOIL code calculated maximum lift and lift curve form even in post stall region conform very well.
In post stall region XFOIL code better predicts a lift curve until the angle of attack is 14[degrees], but later XFOIL code overpredicts and RFOIL code underpredicts the tests.
The lift curves obtained by XFOIL and RFOIL codes match with the test made by Volker's at Re = 0.
Eppler's code overpredicts moment coefficient and can not predict maximum lift and lift curve in post stall region.
The code RFOIL predicts very well the maximum lift and lift curve form even in poststall region.
The RFOIL code better predicts the lift curve in the post stall region.