Re: [Anuga-user] Well balanced scheme

[Fariza D. <fr...@gm...>]

Hello Carlos,

let me try to solve that problem, based on my experienced, that problem may
happen because I did not import that function "*set_flow_algorithm*", have
you import that ? because the "*set_flow_algorithm*" function is defined at
Domain class. On my version that function is located in the code *
shallow_water_domain.py*
*
*
Just try in the first line of your code, put this :

*from anuga.shallow_water.shallow_water_domain import Domain*
*
*
hopefully it could solve your problem



On Thu, Mar 28, 2013 at 1:23 PM, Carlos Rozas <car...@gm...> wrote:

> Hi Stephen,
>
> When I tried to use the the "tsunami" algorithm, I got the following error:
>
> Traceback (most recent call last):
>   File "C:\Users\crozas\Desktop\3.  Aguas Profundas\Modelo\test1.py", line
> 140, in <module>
>     domain.set_flow_algorithm("tsunami")
> AttributeError: Domain instance has no attribute 'set_flow_algorithm'
>
> What's wrong? I really appreciate your help
>
> Best regards,
> Carlos
>
>
> 2013/3/20 Carlos Rozas <car...@gm...>
>
>> Thank you Stephen!
>>
>> So, If I understood, in the actual version of Anuga for windows (1.2.1)
>> there is no chance to use the well balanced scheme unless I use the
>> "tsunami" algorithm.
>>
>> Another option is using the current research version, isn't it? Indeed I
>> tried to use it, but I had a lot of problems trying to compile "cg_ext.c"
>> and "cg_utils.c" files. I guess there is a problem with the gcc compiler
>> with windows 64 bits, but I couldn't solve it. Do you have any idea about
>> this?
>>
>> Best regards and thank you for your help again.
>> Carlos
>>
>>
>> 2013/3/20 Stephen Roberts <ste...@an...>
>>
>>>
>>> Hi,
>>>
>>> Version 1.3 from Sourceforge:
>>>
>>> The version on sourceforge doesn't use well balancing.
>>>
>>> Development version:
>>>
>>> The development version (from anuga.anu.edu.au) uses an algorithm which
>>> is well balanced is the domain is completely wet. The default is "1_5"
>>> which can be interpreted as 1st order time, second order space. There is
>>> also "2_0" which is second order in both time and space. The "1_5" is more
>>> diffusive than "2_0", and is about twice as fast.
>>>
>>> There is an alternative algorithm which we call "tsunami" which is well
>>> balanced even if there are wet and dry regions. But at present there are
>>> problems with this algorithm when there is a shallow flow flowing down
>>> terrain (as happens when we have rainfall applied to  the domain). So we
>>> haven't made "tsunami" the default, though we are actively work on it.
>>>
>>> To choose an algorithm use the command. For instance the following sets
>>> using the "2_0" algorithm.
>>>
>>> domain.set_flow_algorithm("2_0")
>>>
>>> Cheers
>>> Steve
>>>
>>>
>>>
>>>
>>> On 21/03/2013 1:00 AM, Carlos Rozas wrote:
>>>
>>> Hi,
>>>
>>>  I wonder if ANUGA uses the well-balanced scheme per default, or should
>>> I call any special function to use this scheme?
>>>
>>>  Regards,
>>>  Carlos
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Everyone hates slow websites. So do we.
>>> Make your web apps faster with AppDynamics
>>> Download AppDynamics Lite for free today:http://p.sf.net/sfu/appdyn_d2d_mar
>>>
>>>
>>>
>>> _______________________________________________
>>> Anuga-user mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/anuga-user
>>>
>>>
>>>
>>> --
>>> +--------------------------------------------------------------------+
>>> | Steve Roberts                  | My Office:      (61)(2) 6125 4445 |
>>> | Department of Mathematics      | Math Office:    (61)(2) 6125 2908 |
>>> | Mathematical Sciences Institute| Fax:            (61)(2) 6125 4984 |
>>> | John Dedman Building #27       | mailto:ste...@an... <ste...@an...> |
>>> | Australian National University | http://www.maths.anu.edu.au/~steve|
>>> | Canberra ACT 0200  AUSTRALIA   | ANU CRICOS # 00120C               |
>>> +--------------------------------------------------------------------+
>>>
>>>
>>>
>>
>
>
> ------------------------------------------------------------------------------
> Own the Future-Intel(R) Level Up Game Demo Contest 2013
> Rise to greatness in Intel's independent game demo contest. Compete
> for recognition, cash, and the chance to get your game on Steam.
> $5K grand prize plus 10 genre and skill prizes. Submit your demo
> by 6/6/13. http://altfarm.mediaplex.com/ad/ck/12124-176961-30367-2
> _______________________________________________
> Anuga-user mailing list
> Anu...@li...
> https://lists.sourceforge.net/lists/listinfo/anuga-user
>
>


-- 
.:Fariza Dian Prasetyo:.