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-   -   Simulation of Steady-State Flow in a Constricted Tube with Laminar Viscous Model (https://www.cfd-online.com/Forums/fluent/92291-simulation-steady-state-flow-constricted-tube-laminar-viscous-model.html)

rezatabe September 9, 2011 02:00
Simulation of Steady-State Flow in a Constricted Tube with Laminar Viscous Model
 
Hi all,
I want to simulate a steady-state flow in a constricted tube with laminar viscous model but with increasing Reynolds number or stenosis level, residuals didn't converge.please help me.

laurentb September 9, 2011 08:41
Hi,

We need more information in order to help you :

Dimension 2D or 3D
Mesh quality (Mesh>Info>Quality)
Boundary condition
...

Send us your case if you can

rezatabe September 9, 2011 12:49
Dear laurentb,

Additional information are
Fluid:blood
Dimension: axisymmetric flow
Boundary condition: velocity inlet, outflow, wall, axis. I examined another boundary conditions like that mass flow inlet and pressure outlet but residuals didn't converge.
Mesh quality: I used quadrilateral elements. When i simulate the same problem with k-omega SST turbulence model, wall Y Plus obtained under unit (i.e. 0.6).
Please give me an e-mail address until I send my case.


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