# moving boundary(normal to surface)

 Register Blogs Members List Search Today's Posts Mark Forums Read

 April 7, 2005, 11:30 moving boundary(normal to surface) #1 sairamesh Guest   Posts: n/a sir i m doing a problem in which one boundary has a velocity normal to its surface is there any possibility of giving such a condition in fluent if possible please tell me how to model this type of boundary condition ramesh

 April 7, 2005, 11:34 Re: moving boundary(normal to surface) #2 Luca Guest   Posts: n/a Unfortunately no. I had the same problem. You can only set a tangential velocity ot use the dynamic mesh. Luca

 April 7, 2005, 11:41 Re: moving boundary(normal to surface) #3 sairamesh Guest   Posts: n/a can you send me your problem

 April 7, 2005, 16:25 Re: moving boundary(normal to surface) #4 Luca Guest   Posts: n/a Hi wanted to use transpiration velocity for aeroelastic analysis of a wing. Fluent ignores the normal component velocity and accepts only the tangential one. Maybe you could try using the velocity inlet profile instead of a wall but you shuld make sure it works well. This condition may work only with the segregated solver if you want to model an inlet or outlet velocity (see the guide). Luca

 April 9, 2005, 01:49 Re: moving boundary(normal to surface) #5 Anatoly Guest   Posts: n/a Greetings! I have some experience of modelling of free vertical fluctuations of the Vertical cylinder on border of the unit of phases water - air. The bottom and top end faces of the cylinder thus move on a normal on distance of m from ÿ the cylinder. I think, that it approximately that interests you. Can state the problem(task) on mine more in detail anatoly46@gtn.ru. Anatoly.

October 11, 2016, 17:15
#6
New Member

Join Date: Nov 2015
Posts: 5
Rep Power: 4
Quote:
 Originally Posted by Anatoly ;119481 Greetings! I have some experience of modelling of free vertical fluctuations of the Vertical cylinder on border of the unit of phases water - air. The bottom and top end faces of the cylinder thus move on a normal on distance of m from ÿ the cylinder. I think, that it approximately that interests you. Can state the problem(task) on mine more in detail anatoly46@gtn.ru. Anatoly.
Hi Anatoly
I want to simulate a cylinder that has an axial moving in a non-newtonian fluid.
from one end of cylinder, there is an exhaust of fluid (B.C : velocity inlet ). how can I set this condition that a surface (one end of cylinder) with velocity inlet B.C, can move in a line with given velocity?

best regards
mhs

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post velan Open Source Meshers: Gmsh, Netgen, CGNS, ... 3 October 22, 2015 11:05 sega OpenFOAM Running, Solving & CFD 2 March 8, 2011 13:19 ScottN FLUENT 0 March 1, 2011 18:18 zou_mo OpenFOAM Running, Solving & CFD 3 December 28, 2005 21:33 cindy Main CFD Forum 3 April 5, 2004 13:43

All times are GMT -4. The time now is 14:19.