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-   -   sliding meshes (http://www.cfd-online.com/Forums/fluent/49831-sliding-meshes.html)

Tim Daly November 19, 2008 08:22

sliding meshes
 
Hello. I am attempting to simulate the rotation of a water turbine using sliding meshes. The fluent manual states that if 2 zones are meshed independently, it is necessary to merge them. Does this mean that for all sliding mesh problems it is necessary to use t-merge, or can this be done without the use of t-merge.

Also when 2 interfaces assigned in gambit are combined to make a single grid interface, walls are created as boundary zones. Does the fact that these are specified as walls make a problem, and what boundary condition type should they be changed to if so?

Thanks.

ezzeddion November 19, 2008 16:27

Re: sliding meshes
 
try to use Tgrid instead which is more convinient that tfiler tmerge

ezzeddion November 19, 2008 16:32

Re: sliding meshes
 
import two meshe files in Tgrid and save them as one mesh file can be read in fluent

uday November 20, 2008 09:20

Re: sliding meshes
 
Hi Tim

Regarding your gambit query ------Even if you define walls in gambit to interface zones you can change it to interface b.c. in Fluent. For naming conventions you can use Rotor:intf1/Casing:intf1 as in your case for turbine. which would be easier for you to find the couple on interfaces defination panel in fluent

And do remember to change the b.c. of these intf# to interface b.c. from boundary condition panel...

Hope so i have understood your query and answered ..... if its different we can discuss.....to resolve it......

Uday


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