{"id":30986,"date":"2018-10-18T15:59:12","date_gmt":"2018-10-18T15:59:12","guid":{"rendered":"\/forum\/forums\/topic\/fluid-flow-in-porous-media\/"},"modified":"2018-10-18T15:59:12","modified_gmt":"2018-10-18T15:59:12","slug":"fluid-flow-in-porous-media","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluid-flow-in-porous-media\/","title":{"rendered":"Fluid Flow in porous media"},"content":{"rendered":"

Hi Everyone,<\/p>\n

<\/p>\n

I want to model fluid flow inside a porous media using Fluent. This question might be very simple but I cannot figure it out and I would be appreciate for the comments and helps. So the problem is:<\/p>\n

<\/p>\n

Assume that I have two parts on top of each other. The bottom part is sand and the top part is water. And there is an object on top of the sand that is fixed and is not moving. However, it can pump fluid into the sand from its bottom as in Figure bellow<\/p>\n

<\/p>\n

\"Consiguration\"<\/p>\n

<\/p>\n

So the problems are:<\/p>\n

<\/p>\n

1- I know how to define porous media in Fluent by enabling the porous zone in “Cell zone condition”, and I can give the permeability and parameters to define inertia in the zone and that is not the problem. But I feel it is more of multi-physics problem since the sands can also move. But lets just put this aside and for now considering that the sand is not moving. So how can we define other parameters like degree of saturation in the sand. I know that the permeability parameter that we can give, already embed porosity inside it but how about other parameters? I guess maybe it has to do with TBDATA, that I do not know how to use with Fluent.<\/p>\n

<\/p>\n

2- How to define a radial inlet flow as in above figure. In inlet options of Fluent, I can either say perpendicular to inlet surface and define the direction. But it will define all the inlet flow in one direction rather than in every direction. Should I define it through UDF? is there any other easier way?<\/p>\n

<\/p>\n

3- So one of my main goals is to see how fluid will come out of sand from the sides of the object as bellow\"\"   <\/p>\n

<\/p>\n

is there something specific I need to do or defining the “Mesh Interface” is sufficient? Will fluid (in red stream lines) merge and join the water on top?<\/p>\n

<\/p>\n

4- To come back to the first question, is it possible to model the movement of the sand too?<\/p>\n

<\/p>\n

5- Now imagine that the solid body on top of the sand that is fixed, can now move. How can I define an object that is not completely closed. That is, when I put one part of the body as a place for inlet that inject the fluid inside the sand then the square body is not close and the inlet part is open so I cannot model it with Fluent as bellow:<\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

What is the workaround for this problem?<\/p>\n

<\/p>\n

Thanks,<\/p>\n","protected":false},"template":"","class_list":["post-30986","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["3158"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0","0","0","0"],"_btv_view_count":["1476"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["30986"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","22555","154844","156882","180383"],"_bbp_voice_count":["5"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["124639"],"_bbp_last_active_id":["124639"],"_bbp_last_active_time":["2020-08-18 08:02:42"]},"test":"navidz"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/30986","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/30986\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=30986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}