Wire guaze as Porous domain

adilsyyed · May 19, 2012, 17:22

I have to model a tray made of wire-gauze upon which other things will be present.

Can I use porous domain to model this tray, or I have to model its geometry to be porous itself?

I am a student.

ghorrocks · May 20, 2012, 07:26

Are you going for the world record in "most vague question"? How are we meant to know what "upon other things are present" means? With no idea what your flow, fluid or physics is ...... unless you give us some idea of what you are doing there is no way we can help you.

adilsyyed · May 20, 2012, 07:42

Quote:

Originally Posted by ghorrocks

Are you going for the world record in "most vague question"? How are we meant to know what "upon other things are present" means? With no idea what your flow, fluid or physics is ...... unless you give us some idea of what you are doing there is no way we can help you.

It is a dehydrator, in which hot air comes from one inlet and goes out through two openings at the top.
there would be a wire-gauze tray upon which fruits will be kept for dehydration.
Do I need this tray at all? and can I use porous domain to model it.

In the other post I asked you how can I model fruits as heat sink, as they require and dissipate heat during dehydration.

ghorrocks · May 20, 2012, 07:44

If the mesh causes significant deviation or pressure loss in the flow then you should model it. If not then ignore it. In a CFD simulation you can have the fruit magically floating in the air.

adilsyyed · May 20, 2012, 07:46

Quote:

Originally Posted by ghorrocks

If the mesh causes significant deviation or pressure loss in the flow then you should model it. If not then ignore it. In a CFD simulation you can have the fruit magically floating in the air.

And about the fruits being heat sink? How can I do that.

Yet another stupid question I guess...

ghorrocks · May 20, 2012, 08:10

No, not a stupid question, the forum is here to post questions so feel free to ask more. Just give us enough background and context on the question so we can understand what you are trying to do and give a considered answer.

But the question on heat sinks is being discussed on the other thread so no point in discussing it here.

adilsyyed · May 20, 2012, 08:12

Yes it is answered in the other thread.
Thanx

May 19, 2012, 17:22	Wire guaze as Porous domain	#1
adilsyyed Member Adil Syyed Join Date: May 2012 Posts: 49 Rep Power: 13	I have to model a tray made of wire-gauze upon which other things will be present. Can I use porous domain to model this tray, or I have to model its geometry to be porous itself? I am a student.

May 20, 2012, 07:44		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	If the mesh causes significant deviation or pressure loss in the flow then you should model it. If not then ignore it. In a CFD simulation you can have the fruit magically floating in the air. adilsyyed likes this.

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May 20, 2012, 07:26		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Are you going for the world record in "most vague question"? How are we meant to know what "upon other things are present" means? With no idea what your flow, fluid or physics is ...... unless you give us some idea of what you are doing there is no way we can help you.

May 20, 2012, 08:10		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	No, not a stupid question, the forum is here to post questions so feel free to ask more. Just give us enough background and context on the question so we can understand what you are trying to do and give a considered answer. But the question on heat sinks is being discussed on the other thread so no point in discussing it here.

May 20, 2012, 08:12		#7
adilsyyed Member Adil Syyed Join Date: May 2012 Posts: 49 Rep Power: 13	Yes it is answered in the other thread. Thanx