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Showing results 1 to 9 of 9
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Posts Made By:
Suzzn
Forum:
CFX
May 17, 2010, 04:43
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
I know this paper...but i find the same...
I know this paper...but i find the same description of the interface-models as in CFX-help...i cannot find something about pitch change 1...sorry but can you give me a hit where in the text you find...
Forum:
CFX
May 15, 2010, 10:44
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
Could you maybe give me a link to this papers?...
Could you maybe give me a link to this papers? I`ve never heard about this before...I would follow the recommendation of CFX-help and I found nothing about a pitch change of 1 for frozen rotor or...
Forum:
CFX
May 12, 2010, 10:51
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
Hey, when you use Frozen-Rotor-Model and...
Hey,
when you use Frozen-Rotor-Model and the pitch changes, the fluxes are scaled by the pitch change.
Forum:
CFX
May 6, 2010, 09:59
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
And how big is the distance between...
And how big is the distance between instability/surge-limit and this operational point? Do you have measurements? Often big separations already occur at the design point of a compressor, so that...
Forum:
CFX
May 6, 2010, 09:40
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
Often operational point and surge point are very...
Often operational point and surge point are very close so that I think that numerical surge point can be reached before operational point in some cases. :)
Forum:
CFX
May 6, 2010, 09:25
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
Hellow Attila, i think the y+-values...
Hellow Attila,
i think the y+-values calculated in CFX do not only depend on number and height of prism layers but also velocities in impeller and thickness of boundary layer. So i don`t know how...
Forum:
CFX
May 5, 2010, 11:13
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
Hey Attila, why do you think theese...
Hey Attila,
why do you think theese y+-values are not correct? Thats what CFX shows me in POST...:confused:...the characteristic compared to measurements and Ansys-results looked pretty good too....
Forum:
CFX
May 5, 2010, 09:16
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
Hello Attila, nice to meet you again :) ...
Hello Attila,
nice to meet you again :)
My grid is relatively coarse. I have a tetraeder-grid with 5 prism layers.
Max size of tetraeder:
Hub, Shroud = 2 mm
Blades = 1 mm
Leading Edge...
Forum:
CFX
May 4, 2010, 07:08
Replies:
56
SST turbulence model
Views:
18,193
Posted By
Suzzn
Hellow, very interesting thread in here!!!...
Hellow,
very interesting thread in here!!! I made similar steady-state simulations of a centrifugal compressor with vaneless diffusor and volute. Itīs a turbocharger-compressor with 100 000 RPM...
Showing results 1 to 9 of 9
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