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using outlet velocity profile as inlet for next set of iterations

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Old   November 22, 2020, 09:40
Default using outlet velocity profile as inlet for next set of iterations
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Tyler Richardson
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Hi,

i have a straight 3D pipe with a mass flow inlet and pressure outlet. I'd like to get the fully developed velocity profile throughout the pipe, so my intention was to run the solution, take the velocity profile from the oultlet and use it as a velocity-inlet BC, and repeat until convergence.

My problem is that the velocity profile that i export is actually negative (because its at an outlet), and has x,y, and z locations - where Z is different.

I am currently using the TUI in the following way:

/solve/iterate (rpgetvar'rampiter)
/file/write-case-data sae_study_0.cas ok ok
;
;#################################################
;### Write out velocity profile
/file/write-profile/ outlet_velocity_1 outlet () z-velocity ()
;
;#################################################
;### Velocity inlet profiles
/file/read-profile "outlet_velocity_1.prof"
/define/profiles/interpolation-method outlet 1
;
;### Fluid Boundary condition
;### Velocity inlet
/define/boundary-conditions/zone-type inlet velocity-inlet
/define/boundary-conditions/velocity-inlet inlet no no yes yes yes no "outlet" "z-velocity" no 0 no (rpgetvar'ref/temperature) no no yes 5 10
;
/solve/iterate (rpgetvar'rampiter)
/file/write-case-data sae_study_1.cas ok ok
;
;#################################################
;### Write out velocity profile
/file/write-profile/ outlet_velocity_2 outlet () z-velocity ()
;
;#################################################
;### Velocity inlet profiles
/file/read-profile "outlet_velocity_2.prof"
/define/profiles/interpolation-method outlet 1
;
;### Fluid Boundary condition
;### Velocity inlet
/define/boundary-conditions/zone-type inlet velocity-inlet
/define/boundary-conditions/velocity-inlet inlet no no yes yes yes no "outlet" "z-velocity" no 0 no (rpgetvar'ref/temperature) no no yes 5 10
;
/solve/iterate (rpgetvar'rampiter)
/file/write-case-data sae_study_2.cas ok ok


is there a way to use the TUI to output the profile with just X, Y locations, and velocity magnitude? Thanks!
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