trixi-framework / trixi-framework/TrixiParticles.jl

`BoundaryModelDummyParticles` with density calculator `ContinuityDensity` for `TotalLagrangianSPHSystem` is not working

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bug
Dominant language
Julia
Stars
83
Forks
24
Avg merge
8d 18h
Merged PRs (30d)
3

Description

TotalLagrangianSPHSystem consists of two sets of particles. One is the moving particles and the other is the fixed particles.
The latter is not integrated over time, i.e. not stored in v.

Thus, we can't apply the density calculator ContinuityDensity for the boundary model in FSI.

#369 checks that this configuration is not used for FSI.

This Issue is a reminder to fix this in cycle 0.2

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by tracing how TotalLagrangianSPHSystem stores moving and fixed particles, then inspect the interaction between BoundaryModelDummyParticles and ContinuityDensity. Review issue #369 and reproduce the FSI configuration; done means this combination works correctly instead of being rejected or left unsupported.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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