2D simulation. Lagrangian module doubts.

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abhernandez@tecnoma.es
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2D simulation. Lagrangian module doubts.

Postby abhernandez@tecnoma.es » Mon Apr 23, 2012 16:01

Hello everybody,
I’m trying to simulate at the same time two submarine outfalls into the sea (they are separated from each other 500meters). The property that I am mostly interested in both is fecal coliformes. I have some questions…
- I want 2D results. Should I use the mohidjet?
- Should I use also the “discharge module”, or with “lagrangian module” is enough?
- I want to obtain the dispersion (2D) of both outfalls…. Should I consider the same “GROUP_ID” for each origin (in lagrangian model)?
Thanks in advance
Aina

This is my lagrangian archive:

OUTPUT_TIME : 0 7200
DT_PARTIC : 30
OUTPUT_CONC : 2

<BeginOrigin>
ORIGIN_NAME : Outfall1
GROUP_ID : 1
EMISSION_SPATIAL : Point
EMISSION_TEMPORAL : Continuous
DT_EMIT : 5
FLOW : 0.17
NBR_PARTIC : 3
MOVEMENT : SullivanAllen
VARVELHX : 0.015
VARVELH : 0.03
TURB_V : Profile
POSITION_CELLS : 52 104
DEPTH_METERS : 0.4

COMPUTE_PLUME : 0
!DENSITY_METHOD : 2
!COEF_INITIAL_MIXING : 1

TVOL200 : 3600.
VOLUME_INCREASE : Double
VOLFAC : 5e4

<<BeginProperty>>
NAME : fecal coliforms
UNITS : UFC/100ml
CONCENTRATION : 2000
DESCRIPTION : Maxima concentracion de coliformes vertida por outfall-1
T90 : 7200
AMBIENT_CONC : 0
OUTPUT_HDF : 1
<<EndProperty>>
<EndOrigin>


<BeginOrigin>
ORIGIN_NAME : Outfall2
GROUP_ID : 1
EMISSION_SPATIAL : Point
EMISSION_TEMPORAL : Continuous
DT_EMIT : 5
FLOW : 0.1
NBR_PARTIC : 3
MOVEMENT : SullivanAllen
VARVELHX : 0.015
VARVELH : 0.03
TURB_V : Profile
POSITION_CELLS : 112 54
DEPTH_METERS : 0.3

COMPUTE_PLUME : 0

TVOL200 : 3600.
VOLUME_INCREASE : Double
VOLFAC : 5e4

<<BeginProperty>>
NAME : fecal coliforms
UNITS : UFC/100ml
CONCENTRATION : 500
DESCRIPTION : Maxima concentracion de coliformes vertida por outfall-2
T90 : 7200
AMBIENT_CONC : 0
OUTPUT_HDF : 1
<<EndProperty>>
<EndOrigin>

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