"do loop" in cfx expression
hi dear friends.
is it possible to write do loop by CEL in cfx?
the project is a tube with a porous domain at the end of that.
then the inlet pressure decreased suddenly and so the flowrate decreased. i want to change the resistance of the porous domain to obtain the initial flowrate and i need to have sumation of flowrate in all passed time.
i dont know if it is possible or not???????????
Do-Loop isnt what you need. Follow this thread. It shows a method to do what you want within CEL. If you dont like this, you can use user fortran.
hi singer 1812 and thanks for your help.
but im still confused.i do what you wrote me but i dont know how should i use the "res file" as an initial condition?
can you guide me?
another question for me is that after i add an additional variable and run one itration then should i add an expression??????
You need to run an intial run, a "dummy" run if you will, needs only be one iteration, to initialize the variable that you want to addup. If you try adding up that variable, (ie. a=a+1), CFX will complain because a doesnt exist upon start.
If you make a dummy run, only needs to be 1 iteration, with a=0. Then use that run as an initialization for your real run (with a=a+1 or whatever you are using), then CFX will not complain.
hi singer 1812
should i write "a=a+1" as a ""CEL expression"" or another "additional variable"?
i want to have sum of flowrate in all of the passed times.
i realy need that so if it is possible for you guide me in detail.
i see you posted a topic about "Update Loop = TRANS_LOOP" .
i want to sum the flow rate at all the time step passed but i dont know how...
i defined a AV by name of debi and add "Update Loop = TRANS_LOOP" to it in the "edit in command" part then i run for one iteration to have a given initial value for debi=0 then i defined a expression by name of "totdebi=debi+flowrate@inlet"
when i run it gives me error im really confused.
if it is possible for you give me help in detail
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