[blockMesh] Dynamic mesh with wedge geometry

Lorenzo210 · August 10, 2020, 11:08

Dear all,

I am working on a two-phase flow with vaporization inside circular tube. I am currently using the solver interCondensatingEvaporatingFoam, using the k-omega SST turbulence model and the Lee model for what concerns the phase change heat transfer.

I've got some problem about the definition of the mesh.
I have built a wedge geometry because it's a vertical upflow, where there are ordinary inlet(type patch), outlet(type patch), axis(type empty), top(type wall) and front and back (type wedge).

It could be useful to implement a dynamic mesh which refines the cells involving the interphase between liquid and gas like it's done by dynamicRefineFvMesh. I have tried that one, and also the 2D version, but neither one of them works because the non-hexahedral cells of the axis cannot be treated (they have less than 8 vertices).
I wonder if anybody has been in my situation, and if you know how to make a dynamic grid cells which is finer close the interface with a wedge geometry.

Thank you all in advance

Regards,
Lorenzo

XinXin · June 17, 2021, 22:01

Hi，Lorenzo，Have you solved this problem? I have the same problem. Could you give me some advice?

August 10, 2020, 11:08	Dynamic mesh with wedge geometry	#1
Lorenzo210 Member Lorenzo Join Date: Apr 2020 Location: Italy Posts: 36 Rep Power: 6	Dear all, I am working on a two-phase flow with vaporization inside circular tube. I am currently using the solver interCondensatingEvaporatingFoam, using the k-omega SST turbulence model and the Lee model for what concerns the phase change heat transfer. I've got some problem about the definition of the mesh. I have built a wedge geometry because it's a vertical upflow, where there are ordinary inlet(type patch), outlet(type patch), axis(type empty), top(type wall) and front and back (type wedge). It could be useful to implement a dynamic mesh which refines the cells involving the interphase between liquid and gas like it's done by dynamicRefineFvMesh. I have tried that one, and also the 2D version, but neither one of them works because the non-hexahedral cells of the axis cannot be treated (they have less than 8 vertices). I wonder if anybody has been in my situation, and if you know how to make a dynamic grid cells which is finer close the interface with a wedge geometry. Thank you all in advance Regards, Lorenzo XinXin likes this.

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June 17, 2021, 22:01		#2
XinXin New Member XinZhou Join Date: Apr 2018 Posts: 10 Rep Power: 8	Hi，Lorenzo，Have you solved this problem? I have the same problem. Could you give me some advice?