Fluent TUI command - mechanical option in CFD solver

mperrin · October 15, 2021, 07:28

Hello there,

I am facing a problem using fluent with TUI command on a calcul center. I run a basic 2D CFD problem : rectangular fluid flow exchanging heat with a rectangular solid.
Until now, i was using Ansys 18.1 to prepare my .cas file. I work now with 2021 R1 with th same journal file i created.

However, current simulation doesn't work. As soon as my .cas file is opened, i get these waring messages :

Warning: property-info: unknown property: characteristic-vibrational-temperature
Warning: property-info: unknown property: atomic-number
Warning: property-info: unknown property: struct-youngs-modulus
Warning: property-info: unknown property: struct-poisson-ratio

I checked up my solver in meshing and it is clearly set up on 'CFD solver'. In fluent, 'Energy' in on and 'Viscous' is laminar. Everything else is off.

Can someone explains to me why do these mechanical caracteristics are 'on' and how can i block them ?

Please if you know anything, help me

Thank you

Mickael

LuckyTran · October 15, 2021, 11:16

Your v18 .cas contains these declarations (somehow) and is being read into a v19 case. So you don't actually need to turn it off. With regards to this specific warning you can totally ignore it. But it is usually an indicator that you case setup is more complex than you can handle and pretty much a guarantee that something else is actually broken that you will not notice, which seems to be the situation...

October 15, 2021, 07:28	Fluent TUI command - mechanical option in CFD solver	#1
mperrin New Member Mickael Perrin Join Date: Dec 2020 Posts: 9 Rep Power: 5	Hello there, I am facing a problem using fluent with TUI command on a calcul center. I run a basic 2D CFD problem : rectangular fluid flow exchanging heat with a rectangular solid. Until now, i was using Ansys 18.1 to prepare my .cas file. I work now with 2021 R1 with th same journal file i created. However, current simulation doesn't work. As soon as my .cas file is opened, i get these waring messages : Warning: property-info: unknown property: characteristic-vibrational-temperature Warning: property-info: unknown property: atomic-number Warning: property-info: unknown property: struct-youngs-modulus Warning: property-info: unknown property: struct-poisson-ratio I checked up my solver in meshing and it is clearly set up on 'CFD solver'. In fluent, 'Energy' in on and 'Viscous' is laminar. Everything else is off. Can someone explains to me why do these mechanical caracteristics are 'on' and how can i block them ? Please if you know anything, help me Thank you Mickael

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October 15, 2021, 11:16		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,751 Rep Power: 66	Your v18 .cas contains these declarations (somehow) and is being read into a v19 case. So you don't actually need to turn it off. With regards to this specific warning you can totally ignore it. But it is usually an indicator that you case setup is more complex than you can handle and pretty much a guarantee that something else is actually broken that you will not notice, which seems to be the situation...