Re: [Anuga-user] ANUGA

[rupal b. <rup...@gm...>]

Thank you very very much Ole sir and Steve Sir. Really!
Sir, On the upstream inside my domain(not on the boundary) my lake is
there. I want to give hydrograph as input. Sir, correct me if I am wrong,
what I understand is  my domain is very large and flood simulations are
within the domain. It doesn't reach the boundary so I think that the
boundary conditions doesn't matter much. Right?

Thank you for guiding always! :)
Kind Regards,
Rupal


On Fri, Jan 11, 2019 at 4:09 AM Ole Nielsen <ole...@gm...>
wrote:

> Thank you Steve. But if Rupal wants to apply normal depth (as opposed to
> discharge)) Iwould thought it could be done with existing boundary
> conditions?
>
> Rupal do you want to apply water depth (m) or discharge (m3/s)?
>
> Cheers
> Ole
>
> On Fri., 11 Jan. 2019, 09:03 Stephen Roberts <ste...@an...
> wrote:
>
>> Hi Rupal
>>
>>
>> Boundary conditions are implemented by specifying the stage, "xmomentum"
>> and "ymomentum" at the midpoint of each boundary edge. Consider this as
>> being specified outside of each boundary edge. There is an associated
>> edge value for stage, "xmomentum" and "ymomentum" created from the
>> values of those conserved quantities at the centroid of the triangles
>> making up the domain.
>>
>>
>> Then the system calculates a flux across the boundary edge, just as it
>> does for all the interior edges, and these fluxes are used to update the
>> values of the conserved quantities in each of the triangles.
>>
>>
>> We have not implemented a system to specify a given flux across a
>> boundary edge.
>>
>>
>> If you do have a given discharge that you want to specify, I would
>> suggest applying a reflective boundary condition to the boundary need the
>> place you want to set the inflow, and just inside  the boundary region set
>> up an Inlet_operator with the specified discharge.
>>
>>
>> Cheers
>> Steve
>>
>>
>> ==============================
>> Stephen Roberts
>> Undergraduate Convenor
>> Mathematical Sciences Institute
>> Room 4.74 Hanna Neumann Building #145
>> The Australian National University
>> Canberra, ACT 2600 AUSTRALIA
>> Ph: +61 2 61254445
>> CRICOS: 00120C
>>
>> ------------------------------
>> *From:* rupal budhbhatti <rup...@gm...>
>> *Sent:* Thursday, 10 January 2019 6:51:20 PM
>> *To:* anu...@li...
>> *Subject:* ANUGA
>>
>> Hello Sir,
>>
>> Sir, I have query in boundary conditions used by ANUGA. In hydrology we
>> give both upstream, and downstream boundary condition in form of hydrograph
>> , normal depth etc. Then how these Dirichlet,Transmissive  and Time
>> Boundary conditions differ from hydrologic boundary condition?
>>
>> Sorry if it is too basic. but I am confused with these. Please guide me.
>>
>> Kind Regards,
>> Rupal
>>
>>
>>