☆Variable at Solid-Fluid Coupled faces

Conan · March 23, 2009, 09:00

For solid-fluid coupling problem. there are two faces generated by Fluent: say, WALL and WALL-Shadow. Now, I wanna know which face does refer to fluid？ WALL-Shadow?

And, the absolute value of heat-flux through these two should be the same? But I found a very small difference, NOT extractly identical. Why?

Other Variable should be identical?

Ralf Schmidt · April 28, 2009, 17:41

Hi!

for me, it seems to be, that fluent sets WALL and WALL-Shadow more or less random to the fluid and the solid.

I am sure, there is a system, but I don't get it.

I see, that there is no heat flow on the surface related to the solid. Also, the yplus value is zero at that face.

Best wishes
Ralf

tengra · April 28, 2009, 17:52

Under boundary condition, click any of those 2 walls to define boundary conditions, and you will see it will tell you on the new pop up panel which zone (solid or fluid) it belongs to.

igor_vidic · June 26, 2019, 17:03

Can somebody please explain me how Fluent solve heat trsnsfer problem on coupled wall. For example I am modeling fluid flow around cylinder with energy source in it. I don understand how fluent calculate heat transfer coefficient between fluid and solid. I read that coupling wall means that heat flux is the same on boundary and its shadow zone.

March 23, 2009, 09:00	☆Variable at Solid-Fluid Coupled faces	#1
Conan New Member gnxie Join Date: Mar 2009 Location: Sweden Posts: 16 Rep Power: 17	For solid-fluid coupling problem. there are two faces generated by Fluent: say, WALL and WALL-Shadow. Now, I wanna know which face does refer to fluid？ WALL-Shadow? And, the absolute value of heat-flux through these two should be the same? But I found a very small difference, NOT extractly identical. Why? Other Variable should be identical? vivek05 likes this.

April 28, 2009, 17:41		#2
Ralf Schmidt Member Ralf Schmidt Join Date: Mar 2009 Location: Austria Posts: 67 Rep Power: 17	Hi! for me, it seems to be, that fluent sets WALL and WALL-Shadow more or less random to the fluid and the solid. I am sure, there is a system, but I don't get it. I see, that there is no heat flow on the surface related to the solid. Also, the yplus value is zero at that face. Best wishes Ralf __________________ CFD - nothing but Colourful Fluid Dynamics

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April 28, 2009, 17:52		#3
tengra New Member Join Date: Apr 2009 Posts: 10 Rep Power: 17	Under boundary condition, click any of those 2 walls to define boundary conditions, and you will see it will tell you on the new pop up panel which zone (solid or fluid) it belongs to.

June 26, 2019, 17:03		#4
igor_vidic New Member Igor Vidic Join Date: Apr 2019 Posts: 12 Rep Power: 7	Can somebody please explain me how Fluent solve heat trsnsfer problem on coupled wall. For example I am modeling fluid flow around cylinder with energy source in it. I don understand how fluent calculate heat transfer coefficient between fluid and solid. I read that coupling wall means that heat flux is the same on boundary and its shadow zone.