Uninitialized flow field
 

Hi,
I am trying to run an analysis of turbulent water flow in a pipe driving a submerged water turbine. I keep getting the message below:

WARNING: Unassigned interface zone detected for interface 9
Unassigned interface zones found. Flow is not initialized. iter continuity x-velocity y-velocity z-velocity k epsilon time/iter

Error at host: Iterate: uninitialized flow field

Error at Node 0: Iterate: uninitialized flow field

Error at Node 1: Iterate: uninitialized flow field

Error at Node 2: Iterate: uninitialized flow field

Error at Node 3: Iterate: uninitialized flow field

Error: Iterate: uninitialized flow field
Error Object: #f

Calculation complete.

Does anyone know how to resolve this problem?