/solve/initialize/init-instantaneous-vel command disabled

nashim.chowdhury · April 2, 2017, 15:34

When trying to initialize a flow field for the use in LES, the command

Code:

/solve/initialize/init-instantaneous-vel

is disabled

Code:

The commands below are available in this menu.
Those followed by "*" are currently disabled.

compute-defaults/                               open-channel-auto-init*
dpm-reset                                       reference-frame
fmg-initialization                              repair-wall-distance
hyb-initialization                              set-defaults/
init-flow-statistics                            set-fmg-initialization
init-instantaneous-vel*                         set-hyb-initialization
initialize-flow                                 show-time-sampled*
levelset-auto-init*                             vof-patch-smooth-options/*
list-defaults

How do I go about enabling this option ?

LuckyTran · April 3, 2017, 10:17

You use the command while still in RANS mode, i.e. before you activate LES. You also need an existing RANS solution.

nashim.chowdhury · April 3, 2017, 10:23

Yes I ran a preliminary k-e realizable run, and had not switched to LES yet.

hmm, still confused

LuckyTran · April 3, 2017, 10:48

hmms how about...

Check if you are in steady or transient solver. It might be disabled for steady solver. You might need to switch to transient (but still RANS) and then you can type in the command. Be very careful though because as soon you switch to LES, Fluent will lose the k solution.

edit* nevermind I just checked, it is there for steady and transient.

If that is not it, I wonder if maybe someone disabled that command on your setup...

nashim.chowdhury · April 3, 2017, 10:54

Running on a transient solver, this is strange, will investigate to see if someone disabled it.

thank you for the responses !

sbaffini · April 4, 2017, 09:15

Fluent version?

nashim.chowdhury · April 4, 2017, 09:41

Version 16.2

LuckyTran · April 4, 2017, 16:47

I checked on v15 v16.2 and 17.2. The option is present for steady and transient for all, at least on my setup.

nashim.chowdhury · April 5, 2017, 12:21

Could it be possibly due to the fact that I am using the academic student license?

wangjiangnan · October 3, 2024, 10:57

Have you solved it yet? I have the same problem as you

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April 3, 2017, 10:17		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	You use the command while still in RANS mode, i.e. before you activate LES. You also need an existing RANS solution.

April 3, 2017, 10:23		#3
nashim.chowdhury New Member nashim Join Date: Feb 2017 Posts: 9 Rep Power: 9	Yes I ran a preliminary k-e realizable run, and had not switched to LES yet. hmm, still confused

April 3, 2017, 10:48		#4
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	hmms how about... Check if you are in steady or transient solver. It might be disabled for steady solver. You might need to switch to transient (but still RANS) and then you can type in the command. Be very careful though because as soon you switch to LES, Fluent will lose the k solution. edit* nevermind I just checked, it is there for steady and transient. If that is not it, I wonder if maybe someone disabled that command on your setup...

April 3, 2017, 10:54		#5
nashim.chowdhury New Member nashim Join Date: Feb 2017 Posts: 9 Rep Power: 9	Running on a transient solver, this is strange, will investigate to see if someone disabled it. thank you for the responses !

April 4, 2017, 09:15		#6
sbaffini Senior Member Paolo Lampitella Join Date: Mar 2009 Location: Italy Posts: 2,195 Blog Entries: 29 Rep Power: 39	Fluent version?

April 4, 2017, 09:41		#7
nashim.chowdhury New Member nashim Join Date: Feb 2017 Posts: 9 Rep Power: 9	Version 16.2

April 4, 2017, 16:47		#8
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	I checked on v15 v16.2 and 17.2. The option is present for steady and transient for all, at least on my setup.

April 5, 2017, 12:21		#9
nashim.chowdhury New Member nashim Join Date: Feb 2017 Posts: 9 Rep Power: 9	Could it be possibly due to the fact that I am using the academic student license?

October 3, 2024, 10:57		#10
wangjiangnan New Member Join Date: Oct 2024 Posts: 2 Rep Power: 0	Have you solved it yet? I have the same problem as you