[CIG-MC] Impose density structure to Citcoms

[Vlad Manea]

Dear Tannistha,

The way I produced the plate velocities for cookbook 5 was to define a Euler pole (+ angular velocity) at a certain distance from the 
model boundaries and then just compute the plate velocities on the top model mesh nodes.
Nowadays the bet way to do this is to use Gplates to generate the velocities you need.

http://www.gplates.org/

Just let me know if you need more information.

Regards,
Vlad


On Dec 15, 2011, at 4:58 PM, Eh Tan wrote:

> Dear Tannistha,
> 
> I don't have the equation for the plate velocity in Cookbook5 either. That cookbook was created by Vlad Manea (cc'd). Maybe Vlad can recall the parameter he used.
> 
> 
> Eh
> 
> 
> On 12/14/2011 11:15 AM, tannistha maiti wrote:
>> 
>> Dear Eh , 
>> 
>> Could you please let me know how the plate velocities were given to the plates in Cookbook5 problem . I am asking for the equations. 
>> 
>> Thanks, 
>> Tannistha 
>> 
>> On Sat, Nov 26, 2011 at 12:26 AM, Eh Tan <tan2 at mail.utexas.edu> wrote:
>> 
>> Unfortunately, CitcomS doesn't have periodic boundary condition, but CitcomCU does. You can switch to CitcomCU if you really need periodic BC.
>> 
>> Eh
>> 
>> 
>> 
>> On 11/25/11 8:30 PM, tannistha maiti wrote:
>>> 
>>> Dear Eh , 
>>> 
>>> Thanks for your reply . I was wondering if I want to impose a periodic boundary condition where do I need to look for in which part of the code. 
>>> 
>>> Thanks, 
>>> Tannistha 
>>> 
>>> On Tue, Nov 22, 2011 at 9:21 PM, Eh Tan <tan2 at mail.utexas.edu> wrote:
>>> Dear Tannistha,
>>> 
>>> You don't need to do anything. The default is to use reflective sidewall BCs for the regional model.
>>> 
>>> Eh
>>> 
>>> 
>>> On 11/22/11 6:26 PM, tannistha maiti wrote:
>>>> 
>>>> Dear Eh , 
>>>> 
>>>> I would like to impose reflective sidewall boundary condition to my model . Could you please let  me know what is the citcoms command or if need to modify the code for that purpose. 
>>>> 
>>>> Thanks, 
>>>> Tannistha
>>>> 
>>>> On Wed, Oct 19, 2011 at 3:42 PM, Eh Tan <tan2 at mail.utexas.edu> wrote:
>>>> 
>>>> The density field is computed from temperature (E->T) and composition (E->composition.comp_node) fields. The composition field is, in turn, computed from the tracer distribution. You can change the input temperature from your input files (see Cookbook5 for example), and the composition field from other input files (tracer_ic_method=1 or 2).
>>>> 
>>>> If you need something more complicated, you can take a look at the function get_buoyancy() in lib/Pan_problem_misc_functions.c. This function is called at the beginning of every time step, not just of the 0th step.
>>>> 
>>>> Cheers,
>>>> Eh
>>>> 
>>>> 
>>>> 
>>>> On 10/19/2011 12:10 AM, tannistha maiti wrote:
>>>> Dear Eh ,
>>>> 
>>>> Could you please direct me to the code where I can modify the density structure to be used as a condition for my initial model .
>>>> 
>>>> 
>>>> Thanks,
>>>> Tannistha
>>>> 
>>> 
>>>  -- 
>>> Eh Tan
>>> -------
>>> Postdoctoral Fellow
>>> Institute for Geophysics
>>> University of Texas, Austin
>>> J.J. Pickle Research Campus, Bldg 196 (ROC)
>>> 10100 Burnet Rd. (R2200),
>>> Austin, TX 78758-4445
>>> (512) 475-9568
>>> 	
>>> 
>> 
>> -- 
>> Eh Tan
>> -------
>> Postdoctoral Fellow
>> Institute for Geophysics
>> University of Texas, Austin
>> J.J. Pickle Research Campus, Bldg 196 (ROC)
>> 10100 Burnet Rd. (R2200),
>> Austin, TX 78758-4445
>> (512) 475-9568
>> 	
>> 
>> 
>> 
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> 

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