# how to set boundary condition for a tank filling w

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 April 30, 2007, 11:11 how to set boundary condition for a tank filling w #1 namrata Guest   Posts: n/a Hi, how to set the Boundary conditons for a tank which is filled with tank (not completely ) under transient conditions. Is it possible to do using Fluent software to analysis the temperature of the tank. thank you, namrata

 May 1, 2007, 03:29 Re: how to set boundary condition for a tank filli #2 gopal Guest   Posts: n/a give wall conditions with heat tranfr option on! for transient analysis u can either define the time variatio or simply set the time step!

 May 1, 2007, 05:22 Re: how to set boundary condition for a tank filli *NM* #3 nnn,nn Guest   Posts: n/a

 May 1, 2007, 13:18 Re: how to set boundary condition for a tank filli #4 namrata Guest   Posts: n/a hi gopal would u kindlysuggest is it possible to tackle the problem as my domain is changing... as the tank is filling with water.... thank you for your previous response any idea on this is welcome..

 May 2, 2007, 00:30 Re: how to set boundary condition for a tank filli #5 gopal Guest   Posts: n/a hi! if the domain is changing, you hav only one option that is dynamic mesh.but that takes a lotta computational effort.but please tell me vat isexactly the problem you want to solve?

 May 2, 2007, 02:10 Re: how to set boundary condition for a tank filli #6 masoud Guest   Posts: n/a hello; for simulation of tank filling you should set inlet part with "velocity inlet" and use fine mesh in your model and use "unsteady model".its better that your modeling in gambit made in "milimeter" scale. the best regards.

 May 2, 2007, 10:23 Re: how to set boundary condition for a tank filli #7 Phil Guest   Posts: n/a if the tank also has air in it then are you using the multi-phase model? You should be for 'free surface flows', unless I have misunderstood the problem. Phil