UDF in Fluent
 

I am working on the study of wind load and wind flow pattern around tall buildings with CFD/Fluent.
i have generated the velocity time history data ( for different heights along the domain inlet) with the help of matlab in all the three directions(X,Y,Z), now i need to input this data to the fluent,For which i need to generate UDF .
So, can anyone please provide me the UDF for this purpose. Your help will be highly appreciated.
Thank You.

Regards
Ashutosh Sharma