[tmu]

Hi
I am new in ICEM. I want to generate mesh for a simple example of conjugate heat transfer.
My geometry is a 3D tube by considering wall thickness (solid) which I want to simulate fluid flow on the tube. the schematic of my geometry has been shown in follow (image in cylindrical coordinate) :

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solid
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Fluid
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solid
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I created this geometry in Ansys design Modeler. then i imported it in ICEM
I defined two boxes for solid and Fluid. but there is a problem which is overlapping of boxes. after creating meshes, two meshes is shown for fluid and i dont know how can i solve this problem