Tough+Hydrate Model Initialization to Steady state : Pressure gradient appears but Temperature gradient disappears

Hello Everyone. I am trying to run the model to steady state. 

I have a 190 x 1000 model.

I fixed the top boundary to  6.5C and 104bar by making the cells inactive

I set simulation end time to (10,000 years).

I get pressure gradient, but temperature gradient disappears.

Please help, file is attached herewith

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  • you may need to fix the temperature at bottom. There is no gravity equilibrium for temperature.  

  • Well Kenny, if i make the bottom cell fixed, how would then hydrostatic pressure distribution change?

    are you asking me to fix both top and bottom conditions?

  • Only the temperature fixed at bottom, not pressure. To fix the temperature, you may use a large DROK rock grain density (1.0e50) for the bottom boundary.

    • Kenny i have tried this and unfortunately it does not work...anyways I appreciate your comments on this post. 

      I will try other combinations and post in case I achieve my objective 

  • Use large rock density to fix a gridblock temperature is the standard approach for TOUGH. It should work.

    • kenny sure....will keep you posted...once I have the results. Thanks kenny

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