Learning Forum

[skaehne]

Hi all,

I am trying to simulate ice accretion on a Vertical Axis Wind Turbine (specifically a Savonius turbine) when it is both stationary and rotating. The stationary simulations work well and provide useful results. Unfortunately, when I try and set the turbine walls to rotating, I get an 'unsupported topology' error. I wonder if anyone has had a similar issue or known how to fix this?

Thanks.

[Jian Chen]

hi, Skaehne
if possible, it's better to introduce your case to us with the following infor.:
which version you are using to simulate in your case?
how does your computational domain look like? your turbine is placed inside a tunnel or with a farfield boundary? in your grid/mesh, does it contains only one domain, or more than one? (it would be nice to have a figure to show us your case roughly.)
which module you are using, the FENSAP or FENSAP-TURBO?
Thanks.

[skaehne]

Hi JianChen Thanks for responding. I am using FENSAP 2021 R1 to simulate and I am using just FENSAP not FENSAP-TURBO. My domain is shown in the attached image - I have placed the turbine in a relatively large 'tunnel' with a frozen smaller refinement domain (white box outline) to allow for a more refined mesh closer to the turbine.
(I've hidden the inlet and outlet to view the domain easier)
Any help is greatly appreciated

Cheers.

[Jian Chen]

hi, Skaehne v2021 R1 doesn't support setting rotational wall in a stational (frame) simulation with a non-periodic mesh/grid. But this has been currently supported in v2021 R2 as a beta feature.
Therefore, please use v2021 R2 to set up your case.
Thanks.