What does "Scalars" section in Physics tab stands for?

leeyee · August 3, 2010, 11:25

Hi guys,

Sorry for such a simple question. May I ask what is the meaning of "Scalars" section in Physics tab in Flow-3D? I need to model an electric-spray and I am sure I need to enable this. However, I'm not sure how many scalars I need to set, and how to set parameters for each of them. I've searched the manual but didn't find an answer. Thanks for your help. Any clue will all be highly appreciated.

Thanks sincerely.

MuxaB · September 2, 2010, 23:53

Scalars are passive field variables for which a transport equation is solved automatically. They can be used either for coloring fluid by introducing a scalar at an inlet or source, or for code customizations, in which case they may carry some other useful information.

Scalars are not coupled to any physical model so you don't need to activated it.

August 3, 2010, 11:25	What does "Scalars" section in Physics tab stands for?	#1
leeyee New Member Ye Li Join Date: Jul 2010 Posts: 5 Rep Power: 16	Hi guys, Sorry for such a simple question. May I ask what is the meaning of "Scalars" section in Physics tab in Flow-3D? I need to model an electric-spray and I am sure I need to enable this. However, I'm not sure how many scalars I need to set, and how to set parameters for each of them. I've searched the manual but didn't find an answer. Thanks for your help. Any clue will all be highly appreciated. Thanks sincerely.

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September 2, 2010, 23:53		#2
MuxaB Senior Member michael barkhudarov Join Date: Mar 2009 Location: Sante Fe, New Mexico, USA Posts: 337 Rep Power: 18	Scalars are passive field variables for which a transport equation is solved automatically. They can be used either for coloring fluid by introducing a scalar at an inlet or source, or for code customizations, in which case they may carry some other useful information. Scalars are not coupled to any physical model so you don't need to activated it.