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lfbupc

铁虫 (小有名气)

[求助] fluent VOF参考压力位置 已有1人参与

请问vof参考压力位置怎样选取?是不是只要该位置的某一相体积分数始终是100%就行?我做的空气和水
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zhouwensmile

铁杆木虫 (著名写手)

【答案】应助回帖

感谢参与,应助指数 +1
参考压力选在压力较稳定的地方就行
思考之后努力
2楼2016-05-04 10:13:38
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lfbupc

铁虫 (小有名气)

引用回帖:
2楼: Originally posted by zhouwensmile at 2016-05-04 10:13:38
参考压力选在压力较稳定的地方就行

是不是使用了压力出口,就不用管参考压力位置?
3楼2016-05-04 15:56:00
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zhouwensmile

铁杆木虫 (著名写手)

引用回帖:
3楼: Originally posted by lfbupc at 2016-05-04 15:56:00
是不是使用了压力出口,就不用管参考压力位置?...

参考压力的位置并不是特别重要,最好放在压力变化不剧烈的地方
思考之后努力
4楼2016-05-04 17:18:47
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zhouwensmile

铁杆木虫 (著名写手)

【答案】应助回帖

记忆有点混乱

查看了fluent帮助:
For incompressible flows that do not involve any pressure boundaries, ANSYS Fluent adjusts the gauge pressure field after each iteration to keep it from floating. This is done using the pressure in the cell located at (or nearest to) the reference pressure location. The pressure value in this cell is subtracted from the entire gauge pressure field; as a result, the gauge pressure at the reference pressure location is always zero. If pressure boundaries are involved, the adjustment is not needed and the reference pressure location is ignored.

和你的说法差不多
思考之后努力
5楼2016-05-04 20:47:44
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lfbupc

铁虫 (小有名气)

引用回帖:
5楼: Originally posted by zhouwensmile at 2016-05-04 20:47:44
记忆有点混乱

查看了fluent帮助:
For incompressible flows that do not involve any pressure boundaries, ANSYS Fluent adjusts the gauge pressure field after each iteration to keep it from floating.  ...

嗯,谢谢!
6楼2016-05-05 19:08:42
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