[Coop_CB]

I am currently attempting to run a simulation in Fluent 2023R1 on a HPC.
It’s a 3D pressure based simulation where I have two fan models present.
It seems that the propellers are momentum models and I cannot find a way around this.
As a result – the simulation will not run when fans are present.
I have tried to force the models to pressure based – but I still receive the same error.

The following is the ANSYS output:


“> /define/models/solver/density-based-explicit no
No change.
> /define/models/solver/density-based-implicit no
No change.
> /define/models/solver/pressure-based yes

> /solve/initialize/hyb-initialization
turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 10429708 cells

Note: Settings to improve the robustness of pathline and
particle tracking have been automatically enabled.

Preparing GPU solver, please wait ...
--------------------------------------------------------------------------------------------------------------------------------------------------
Rank PID Core OS Host Device Name Version Memory(GB) Bandwidth(GB/s) Cores
--------------------------------------------------------------------------------------------------------------------------------------------------
GPU specs listed here – supported A100 Nvidia Cards
--------------------------------------------------------------------------------------------------------------------------------------------------
Bandwidth : 5.12507 GB/s
Latency : 0.783927 usec


Please modify the following unsupported settings before proceeding (2)
*************************************
Equation Zone ID Type
-------------------------------------
momentum auv_propeller 87 jump
momentum xluuv_propeller 82 jump


Error: Failed to setup GPU Solver”



In the journal file, I model to fan models with the following commands:



“/define/boundary-conditions/zone-type 87 fan
/define/boundary-conditions/zone-type 82 fan
.
.
.
/define/boundary-conditions/zone-name 87 auv_propeller
/define/boundary-conditions/zone-name 82 xluuv_propeller
/define/boundary-conditions/fan xluuv_propeller 1 no constant 0 no 0 0 yes no -16000 yes () () 0.5 0 0 0 1 0 0 yes no 5.729 yes no 0
/define/boundary-conditions/fan auv_propeller 1 no constant 0 no 0 0 yes no -5000 yes () () 0.02 0 0 0 1 0 0 yes no 5.729 yes no 0”



Cheers,
C