the continuity does not converge-need help
 

hello to you,

i am modeling a hydro cyclone, under this circumstances:
velocity: 14.7m/s
transient solver
oil and water misture>> Vfoil=0.05
Eulerian setup
RMS setup
Pi=400kpascal
simple method
first order (for first evaluation)
considering the courant number>> the time step is about 0.0001
iterations>> 50000

however since i dont have access to a versatile pc, i keep the time step=0.01

lastly, after 2 or 3 thousand iterations, the continuity residual keeps rising in a way that it reaches 1e8 at iteration=5000.

any help to overcome this obstacle is highly appreciated.

m.zandie@ut.ac.ir
tell:+989187833918