||December 30, 2000 08:20
Hi all.. I'm doing this channel flow with square cylinder in the center of channel, and the streamfunction of the bottom wall is zero, the top is 11. So logically speaking, my centered cylinder should have a stream function of 5.5, with fluctuating values at unsteady situation also about 5.5. But no matter how I try with my programme (I'm using finite difference method), I always get a value of some value higher,like 5.7 to 5.8, for my cylinder. Can anyone advise me on what might actually be wrong? I'm using the line integral of the Navier Stokes eqn for cylinder streamfunction determination. Thanks!