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☆Variable at Solid-Fluid Coupled faces

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Old   March 23, 2009, 09:00
Default ☆Variable at Solid-Fluid Coupled faces
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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?
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Old   April 28, 2009, 17:41
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Ralf Schmidt
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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
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Old   April 28, 2009, 17:52
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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.
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Old   June 26, 2019, 17:03
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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.
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