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Question) fan simulation & B.C

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Old   February 7, 2011, 14:27
Default Question) fan simulation & B.C
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Kim sang heuon
Join Date: Feb 2011
Posts: 5
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Serazio is on a distinguished road

I want to compare experimental data in anechoic room
with fluent simulation result.

So, in ICEM-CFD , i meshed huge room(hexaheron room) and fan.
(fan diameter = 70mm , room size = 2400mm x 2400mm x 1500mm)

To get initial state information for sliding mesh model,
i used steady solver and MRF model.

Q. 1

I used wall B.Cs at floor and pressure inlet & pressure outlet B.Cs at other sides.

Then, ' reversed flow ' is occurred and it didn't vanished .

How can i vanish this message.

Just extend my room size?

Q. 2

In my case,
can I change pressure inlet & pressure outlet B.Cs to pressure far-field B.Cs?

Thanks in advance.
Attached Images
File Type: jpg room2.JPG (26.7 KB, 11 views)
File Type: jpg fan.jpg (36.1 KB, 14 views)
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