Skip to content

Fluid relaxation doesn't perform well for opening bcs #639

@WeiyiVirtonomy

Description

@WeiyiVirtonomy

Describe the bug
The inflow region has velocity and pressure singularities if the fluid particles are relaxed.
E.g. T-shaped pipe flow:

image image

This is within the inflow region, where the velocity is prescribed. Weirdly, the velocity within this region is not exactly parabolic.
The simulation can still go on with the parameters used in test_2d_T_shaped_pipe, but in some cases, it can fail after several steps.

To Reproduce
Add relaxation of fluid in test_2d_T_shaped_pipe.

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions