Darcy Flow in 1D

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1

Hi everyone,

can anybody tell me which value needs to be entered into the source term file under "$DIS_TYPE" for 1D darcy flow, process type LIQUID_FLOW? Is it the volumetric flow rate, or the darcy velocity?

Background: I tried to conduct a quick benchmark, and got the correct results for the pressure drop over the model domain when using darcy velocity. However, the pressure drop changes when I change the radius of my tube ($GEOMETRY_AREA in the mmp file). This should only be the case when the volumetric flow rate is used.

Best regards,

Daniel
···

Daniel Müller

Sec. 4.1 - Reservoir Technologies

      International Centre for Geothermal Research ICGR

      Tel +49 331 288-1567

Helmholtz-Zentrum Potsdam

      **Deutsches GeoForschungsZentrum GFZ**

      Stiftung des öff. Rechts Land Brandenburg

      Telegrafenberg, 14473 Potsdam

daniel.mueller@gfz-potsdam.de

2

hi, you are right. that is volumetric flux for 1d meshes, as the mesh doesn't define a diameter of the tube.

best,
nori

···

On 10 March 2015 23:38:55 GMT+09:00, "Daniel Müller" <daniel.mueller@gfz-potsdam.de> wrote:

Hi everyone,

can anybody tell me which value needs to be entered into the source
term
file under "$DIS_TYPE" for 1D darcy flow, process type LIQUID_FLOW? Is
it the volumetric flow rate, or the darcy velocity?

Background: I tried to conduct a quick benchmark, and got the correct
results for the pressure drop over the model domain when using darcy
velocity. However, the pressure drop changes when I change the radius
of
my tube ($GEOMETRY_AREA in the mmp file). This should only be the case
when the volumetric flow rate is used.

Best regards,
Daniel

------------------------------------------------------------------------
*Daniel Müller*
Sec. 4.1 - Reservoir Technologies
International Centre for Geothermal Research ICGR
Tel +49 331 288-1567
daniel.mueller@gfz-potsdam.de
------------------------------------------------------------------------
Helmholtz-Zentrum Potsdam
*Deutsches GeoForschungsZentrum GFZ*
Stiftung des öff. Rechts Land Brandenburg
Telegrafenberg, 14473 Potsdam

3

For 1D CONSTANT type is the right choice for "$DIS_TYPE", which defines the volumetric flow rate or velocity if the area in .mmp is set to one.

···

On 03/10/2015 03:38 PM, Daniel Müller wrote:

Hi everyone,

can anybody tell me which value needs to be entered into the source term file under "$DIS_TYPE" for 1D darcy flow, process type LIQUID_FLOW? Is it the volumetric flow rate, or the darcy velocity?

Background: I tried to conduct a quick benchmark, and got the correct results for the pressure drop over the model domain when using darcy velocity. However, the pressure drop changes when I change the radius of my tube ($GEOMETRY_AREA in the mmp file). This should only be the case when the volumetric flow rate is used.

Best regards,
Daniel

------------------------------------------------------------------------
*Daniel Müller*
Sec. 4.1 - Reservoir Technologies
International Centre for Geothermal Research ICGR
Tel +49 331 288-1567
daniel.mueller@gfz-potsdam.de
------------------------------------------------------------------------
Helmholtz-Zentrum Potsdam
*Deutsches GeoForschungsZentrum GFZ*
Stiftung des öff. Rechts Land Brandenburg
Telegrafenberg, 14473 Potsdam
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4

OK, it’s clear now. I somehow thought that GEOMETRY_AREA defines the tube radius in 1d. Thanks!

···

Am 11.03.2015 um 10:39 schrieb Wenqing Wang:

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–
Daniel Müller

Sec. 4.1 - Reservoir Technologies

      International Centre for Geothermal Research ICGR

      Tel +49 331 288-1567

Helmholtz-Zentrum Potsdam

      **Deutsches GeoForschungsZentrum GFZ**

      Stiftung des öff. Rechts Land Brandenburg

      Telegrafenberg, 14473 Potsdam

    For 1D CONSTANT type is the right choice for "$DIS_TYPE", which defines the volumetric flow rate or velocity if the area in .mmp is set to one.

     

    On 03/10/2015 03:38 PM, Daniel Müller wrote:

Hi everyone,

    can anybody tell me which value needs to be entered into the source term file under "$DIS_TYPE" for 1D darcy flow, process type LIQUID_FLOW? Is it the volumetric flow rate, or the darcy velocity?



    Background: I tried to conduct a quick benchmark, and got the correct results for the pressure drop over the model domain when using darcy velocity. However, the pressure drop changes when I change the radius of my tube ($GEOMETRY_AREA in the mmp file). This should only be the case when the volumetric flow rate is used.



    Best regards,

    Daniel


    -- You received this message because you are subscribed to the Google Groups "ogs-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to . For more options, visit .

Daniel Müller

          Sec. 4.1 - Reservoir Technologies

          International Centre for Geothermal Research ICGR

          Tel +49 331 288-1567

Helmholtz-Zentrum Potsdam

          **Deutsches GeoForschungsZentrum GFZ**

          Stiftung des öff. Rechts Land Brandenburg

          Telegrafenberg, 14473 Potsdam

daniel.mueller@gfz-potsdam.de

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