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Old   July 10, 2009, 11:35
Default I am confused with the settings for my problem
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Hi everyone,

I am trying to simulate ammonia and water emission from ammonia water in a two dimentional model using Fluent 6.3.26. The ammonia water fills in a tank which is connected with a wind tunnel. The air is supplied for one side of the wind tunnel and exhausted from the other side. THe case is isothermal.

I tried tutorial 17 and 19 and read part of 23 chapter in user's guide, but I am still not clear for the settings of the simulation. I suppose the following models and boundary conditions should be considered:
(1) velocity inlet, air, water-gas and ammonia gas flows with the same velocity and volume fraction will be set;
(2) pressure outlet;
(3) low Reynolds k-e model;
(4) Multiphase flow model, VOF or Mixture or Eulerian, I am not sure;
(5) the ammonia water in the tank, I guess there is chemical reaction, such as: NH4--NH3+H, I don't know how I can define it here;
(6) Should the evaporation model be included since there is water evaporate into the air?
(7) Should I define something for the ammonia emission from the liquid-gas interface?
(8) Should I define the interface in the model?

Thank you very much.

Kind Regards,
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Old   July 13, 2009, 16:20
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Is it possible to model the ammonium chemical reaction in the ammonia water with multiphase model in FLuent 6.3.26?
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