LB 2021-12-07

A SIMULIA e-Learning Resource
Created using Abaqus 6.12

A streamline traces the path tangent to a nodal vector field, and a stream is a set of streamlines that enable you to visualize data emanating from a particular location in a vector field.

Streamlines are most commonly used to display velocity data in a fluid flow analysis. In this case, streamlines show the direction the fluid will travel in at any point in time. The curvature of a streamline is related to the pressure gradient acting perpendicular to the streamline. Streamlines can serve as a useful tool in engineering design process; for example, they are used in design studies aimed at reducing drag on structures.

Narrated Video

The following video includes:
   - An introduction (0-0:50)
   - A demonstration of creating streamlines (0:50-8:30)
         -- 0:50-2:15 Create Streams overview

                              Basic workflow:
         -- 2:15-2:45   1) Create Stream using By nodes specification method
         -- 2:45-3:15    2) Activate translucency to view the streamlines
         -- 3:15-3:40    3) Use the Stream Manager to customize streams

                              Advanced usage:
         -- 3:40-5:00   Create Stream using By coordinates specification method
         -- 5:00-6:25   Create Stream using By path specification method
         -- 6:25-7:35   Advanced streamline customization
         -- 7:35-8:30   Controlling the output variable used to color streamlines

Now You try it!

Click the icon below to download the attached file: streamlines-TJunctionCFD-Abaqus612.zip

This file includes the example model shown in the demonstration. It also includes the step-by-step instructions (Streamlines-TJunction-StepByStep-Abaqus612.pdf) to help you practice creating streamlines.

This exercise was produced using Abaqus 6.12.

References

Workflow Summary:

Click the icon below to download a printable PDF of the streamline creation workflow:

Other references:

--- “The Stream toolset,” Section 47 of the Abaqus/CAE 6.12 User's Manual

--- “Flow through a bent tube,” Appendix E of the Getting Started with Abaqus: Interactive Edition

---Tech Brief Video: Coupled Electromagnetic and Fluid-Structure Interaction Analysis of a Solenoid Valve

--- Abaqus training class: Introduction to Abaqus/CFD

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