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Center line velocity of curved 3D pipe visualized in 1D line graph
Posted 05.09.2017, 03:09 GMT-4 Fluid & Heat, Computational Fluid Dynamics (CFD), Results & Visualization Version 5.2a 1 Reply
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Hello all,
I want to plot the center line velocity of a curved 3D pipe over the arc length which has several curvatures with different angles.
In the application library the example "Flow Through a Pipe Elbow" (www.comsol.de/model/flow-through-a-pipe-elbow-12221) exist.
Taking this example, how could I plot the center line velocity over the arc length? I want to compare the results with a 2D axis symmetric solution. In this case it is simple, just taking the axis of symmetry as data set and plot it.
Best regards
Andreas
I want to plot the center line velocity of a curved 3D pipe over the arc length which has several curvatures with different angles.
In the application library the example "Flow Through a Pipe Elbow" (www.comsol.de/model/flow-through-a-pipe-elbow-12221) exist.
Taking this example, how could I plot the center line velocity over the arc length? I want to compare the results with a 2D axis symmetric solution. In this case it is simple, just taking the axis of symmetry as data set and plot it.
Best regards
Andreas
1 Reply Last Post 05.09.2017, 13:34 GMT-4
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Posted:
7 years ago
Got a response from support.
There is no direct way to do this with this geometry.
Two possibilities to solve this problem.
1. Re-create the geometry e.g. using a polygon/Bézier and a perpendicular work plane that is swept along the polygon. In this way, you receive a 3D pipe with a line in the center. For the sweep "Include all inputs in Form Union/Assembly " has to be selected.
2. Work with curvilinear coordinates: www.comsol.de/blogs/using-curvilinear-coordinates/
I decided to re create the geometry with Bézier polygons. It woked fine.
Special thanks to the support!
There is no direct way to do this with this geometry.
Two possibilities to solve this problem.
1. Re-create the geometry e.g. using a polygon/Bézier and a perpendicular work plane that is swept along the polygon. In this way, you receive a 3D pipe with a line in the center. For the sweep "Include all inputs in Form Union/Assembly " has to be selected.
2. Work with curvilinear coordinates: www.comsol.de/blogs/using-curvilinear-coordinates/
I decided to re create the geometry with Bézier polygons. It woked fine.
Special thanks to the support!