Mesh problem

abdou

Hi all I am studying a turbulent jet in 3d. So i am using cylindrical domain with circular inlet. the origin of coordinates system is located at the inlet center. Thus a min of the three coordinates is 0 but When I import mesh and check it I have the following message: Grid Check

Domain Extents:

x-coordinate: min (m) = -4.592274e-18, max (m) = 1.000000e-01 thus -4.592274e-18 instead of 0.00 and the same for other coodinates. y-coordinate: min (m) = -7.500000e-02, max (m) = 7.500000e-02 z-coordinate: min (m) = -7.500000e-02, max (m) = 7.500000e-02 any helps are appreciated