Hi Edscott,
I would rather change it l.498ff where the total stresses are calculated.
Cheers,
Martin
On 3/11/19 11:07 PM, Ed Scott Wilson Garcia wrote:
Hi Martin,
So, that means effectivePressure[eIdx] should be multiplied by alpha in
model.hh:408 to get the correct total and principal stresses in the output
files. Correct?
best regards,
Edscott
-----Mensaje original-----
De: Martin Beck [mailto:[email protected]]
Enviado el: lunes, 11 de marzo de 2019 04:10 a. m.
Para: DuMuX User Forum; Ed Scott Wilson Garcia
CC: Manuel Coronado Gallardo
Asunto: Re: [DuMuX] Using Biot's Modulus and coefficient in el2p model
Hi Edscott,
yes, the model assumes alpha = 1. If you want to adapt this, you have to change
it in the elementvolumevariables.hh, but also for the assembly of the momentum
balance equation in localoperator.hh:346 (- alpha * peff instead of - peff).
The post-processing evaluation of the total stresses and the principal stresses
in model.hh also contains this assumption.
Cheers,
Martin
On 3/8/19 9:02 PM, Ed Scott Wilson Garcia wrote:
We are now introducing Biot's modulus into the el2p problem and using this to
calculate Skempton's coefficient instead of the other way around (Biot's
modulus = 1/c0_).
In order to obtain the undrained bulk modulus we also need Biot's coefficient
(alpha), so we also provide that in the input file.
My question is as follows.
To make the use of Biot's coefficient complete, would we also have to modify
the el2p model?
Specifically, multiply the divergence of u with alpha in
elementvolumevariables.hh:259?
best regards,
Edscott
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--
*******************************************************
Martin Beck
Institute for Modelling Hydraulic and Environmental Systems Department of
Hydromechanics and Modelling of Hydrosystems Pfaffenwaldring 61
D-70569 Stuttgart
Tel.: (+49) 711/ 685-64899
[email protected]
*******************************************************
--
*******************************************************
Martin Beck
Institute for Modelling Hydraulic and Environmental Systems
Department of Hydromechanics and Modelling of Hydrosystems
Pfaffenwaldring 61
D-70569 Stuttgart
Tel.: (+49) 711/ 685-64899
[email protected]
*******************************************************
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