Help!!! Robin~~

yee seok bae

hi~ I am use CFX 5.6 and I am trying to set an inlet velocity profile(1d), I am not using equations but a set of datas, especially use 1D interpolation. After solve, i confirmed inlet boundary velocity. There is a problem.. at inlet, wall have to set zero. but it had velocity. when i use 1D interpolation, i was inputed 0 to zero point... please answer to me why this problem occured... thank you for your advice..