Dynamic Expressions

Vicktor · June 25, 2014, 10:53

Dear Friends,

i'm new here, so would be very thankful if you professonials would help me.

In my Ansys cfx Simulation i injected 10 micro meter water droplets (Euler-Lagrange methode) in a planar blade passage. I wanted to know if it is possible to define the droplet-density of the water droplets (material -> water) as a dynamic Expression of the current force from the surrounding Phase working on the water-droplets. If it is possible, how can i do this in Ansys cfx?

Kind regards,
Vicktor

ghorrocks · June 25, 2014, 19:41

What do you mean by the "current force from the surrounding phase"? Do you mean the continuous phase pressure? Or the drag force on the droplet?

I would just give it a try and see if it works. It will tell you if you cannot do it. The list of available variables are in the CFX documentation reference manual.

June 25, 2014, 10:53	Dynamic Expressions	#1
Vicktor New Member Join Date: Jun 2014 Posts: 1 Rep Power: 0	Dear Friends, i'm new here, so would be very thankful if you professonials would help me. In my Ansys cfx Simulation i injected 10 micro meter water droplets (Euler-Lagrange methode) in a planar blade passage. I wanted to know if it is possible to define the droplet-density of the water droplets (material -> water) as a dynamic Expression of the current force from the surrounding Phase working on the water-droplets. If it is possible, how can i do this in Ansys cfx? Kind regards, Vicktor

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June 25, 2014, 19:41		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	What do you mean by the "current force from the surrounding phase"? Do you mean the continuous phase pressure? Or the drag force on the droplet? I would just give it a try and see if it works. It will tell you if you cannot do it. The list of available variables are in the CFX documentation reference manual.