Particle destructor

[chongchonghe]

Description

Support particle destruction.

Changes:

• Define ParticleDestructionTraits. The user define their own particle destructor by specializing the ParticleChecker method in ParticleDestructionTraits, which return true or false to mark a particle for destruction. As a placeholder, particles.param3 is used in particle destructor.
• Define ParticleDestructionImpl, which loops over all particles at a level and mark particles for destruction.
• Add a getNumParticles function to PhysicsParticleDescriptor to get the total number of valid particles of that type.
• Add a new particle parameter particles.verbose to turn on printing particle logistics at each time step. Currently, it prints the number of particles of each type.

The new particle destructor feature is tested in gravity_3d.cpp.

Next, I'll add a particleDestruction method in ParticleDestructionTraits, which modifies the hydro state while removing a particle.

Related issues

None.

Checklist

Before this pull request can be reviewed, all of these tasks should be completed. Denote completed tasks with an x inside the square brackets [ ] in the Markdown source below:

• I have added a description (see above).
• I have added a link to any related issues (if applicable; see above).
• I have read the Contributing Guide.
• I have added tests for any new physics that this PR adds to the code.
• (For quokka-astro org members) I have manually triggered the GPU tests with the magic comment /azp run.

[chongchonghe]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[BenWibking]

Overall design looks good to me.

[sonarqubecloud]

Quality Gate passed

Issues
5 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud