TELEMAC-MASCARET Forum: 2D Simulation with time dependent node blocking (1/1)

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TOPIC: 2D Simulation with time dependent node blocking

2D Simulation with time dependent node blocking 6 years 8 months ago #29375

sathya

Hello,
I would like to model a flow through a small creek for a period of 6 hours. I would like to block(instantly) the flow at the very centre along the cross section of the creek for atleast 1 minute (from 3hr 0 min to 3hr 1min) and need to obtain the flow pattern.

Is there any similar kind of example files available for reference?

If not available, would anyone suggest me how to do blocking the selected mesh nodes to cease the flow to pass through?

Thanks

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2D Simulation with time dependent node blocking 6 years 7 months ago #29393

Lufia	Hi, maybe you can just make a restart with the flow field (previous computation)? Best regards, Leo
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2D Simulation with time dependent node blocking 6 years 7 months ago #29454

riadh

Hello

To do so, you have to add subroutine Telemac2D.F to your fortran file and edit the time loop in the following way
if(AT.GE.10800.D0.AND.AT.LE.10860.D0)THEN
AT=AT+DT
GOTO 4000
ENDIF

where 4000 will be a marking point at the end of the time loop. or instead of the marking point, you can simply use the commande recycle.

There is another way to do: you can edit the subroutine maskob.f which is a routine called for every time step. Thus, you can add a mask for all the domain which is called only for the time you want to freeze the flow.

I hope this helps

with my best regards

Riadh

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