[garimavishal]

hi everyone

I am new to this Openfoam. i am trying to simulate flow across unconfined circular cylinder using nonnewtonianIcofoam. First i have tried to solve it for newtonian fluid by changing the viscosity model to newtonian i.e. by simply changing the constant file/transport model to newtonian .
For Re=40 these are the parameters which i have taken
velocity= 1m/s
kinematic viscosity = .025 m^2/s
density = 1kg/m^3
diameter of cylinder = 1m
length =1 m
i have done the meshing part using gambit and then used it in openfoam
Please note that flow is unconfined and Dinfinity/D=100
the solutions which our literature suggest is for lift coefficent is 1.4-1.6
but i am getting lift coefficent as 4.3
plz help me out here
thanks in advance