<div dir="ltr">Hi Neks, hi Paul,<br><br>I have already asked the question about stress
formulation and currently I am testing stress formulation in pipe flow
with variable viscosity. So I have found strange thing: the longitudinal
and transverse velocities at the outlet are different with different
pipe lengths(with same boundary conditions at the inlet). Transverse
velocities decrease and axial one increase with pipe length increasing.
That implies a kind of acceleration in the pipe. Is there any
explication for this? How transverse velocities are calculated at the
outlet?<br><br>Thanks in advance for any help,<br><br>Andrew<br></div>