please help me
 

hi
i do graduation project at final year
my project is study aerodynamics with fluent for airplane
i do mesh with gambit and export it to fluent
in fluent at angle of attack 0 the lift cofficent is 0.38 and still rise slowly until angle 35 the lift cofficent is 0.9 ,I don't now what is wrong ?
where ,
my wing span is 9.144 m
chord 0.972 m
naca 4415
and the wing is rectangular
the velocity 36 m/s
please help me

graduation project
 

hi
i do graduation project at final year
my project is study aerodynamics with fluent for airplane
i do mesh with gambit and export it to fluent
in fluent at angle of attack 0 the lift cofficent is 0.38 and still rise slowly until angle 35 the lift cofficent is 0.9 ,I don't now what is wrong ?
where ,
my wing span is 9.144 m
chord 0.972 m
naca 4415
and the wing is rectangular
the velocity 36 m/s
please help me