How to create mesh block for curved channel in FLOW3D?

murali666 · May 17, 2024, 10:12

I am trying to simulate flow in a curved channel in FLOW-3D. But I am struck at creating the mesh block. As shown in the figure, the mesh block is coming as a rectangle, not aligning with the curved channel. The initial water level is also coming over the entire mesh block instead of only in the channel.

How can I correctly create the mesh block and give the boundaries for the curved channel, as shown above?

Access figure with this link: https://drive.google.com/file/d/1fuz...8Bm7wFwqc/view

koful · May 29, 2024, 05:18

Hi.

Flow3d's can only generate rectangular grids. I am not able to see your images but if you add only your channel geometry water will fill the side empty places between the channel wall and the mesh boundary. you should fill the rest of the mesh with solids.

kylas · June 2, 2024, 22:39

Try to change your side boundary(ymin,ymax) conditions to WALL.
You can also set the initial condition of the channel, regions can be interactively edited so it's easier to adjust

May 17, 2024, 10:12	How to create mesh block for curved channel in FLOW3D?	#1
murali666 New Member Murali Krishnamraju Join Date: Jan 2022 Posts: 10 Rep Power: 4	I am trying to simulate flow in a curved channel in FLOW-3D. But I am struck at creating the mesh block. As shown in the figure, the mesh block is coming as a rectangle, not aligning with the curved channel. The initial water level is also coming over the entire mesh block instead of only in the channel. How can I correctly create the mesh block and give the boundaries for the curved channel, as shown above? Access figure with this link: https://drive.google.com/file/d/1fuz...8Bm7wFwqc/view

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May 29, 2024, 05:18		#2
koful Member Join Date: Jun 2014 Location: Turkey Posts: 58 Rep Power: 12	Hi. Flow3d's can only generate rectangular grids. I am not able to see your images but if you add only your channel geometry water will fill the side empty places between the channel wall and the mesh boundary. you should fill the rest of the mesh with solids.

June 2, 2024, 22:39		#3
kylas New Member kyla Join Date: May 2024 Posts: 13 Rep Power: 2	Try to change your side boundary(ymin,ymax) conditions to WALL. You can also set the initial condition of the channel, regions can be interactively edited so it's easier to adjust