sph-workflow

name	sph-workflow
description	SPH/DualSPHysics post-processing workflow skill. Guides AI agents through particle method visualization: fluid filtering, sloshing animations, isosurface mesh extraction, and particle distribution analysis. Maps SPH domain vocabulary to viznoir MCP tool calls. Triggers: SPH, DualSPHysics, particles, sloshing, fluid, Type field, bi4, 입자, 슬로싱, 유체

SPH Post-Processing Workflow

Standard Sequence

1. inspect_data → identify Velocity, Pressure, Type fields, timestep count
2. cinematic_render(field="Velocity", colormap="Viridis") → particle overview
3. execute_pipeline with Threshold(Type, 0, 0) → fluid-only particles
4. animate(mode="timesteps") → time evolution
5. pv_isosurface → smooth surface mesh from particles (if needed)

Fluid-Only Filtering

DualSPHysics uses Type field: 0=fluid, >0=boundary. To show fluid only:

{
  "source": {"file": "FILE_PATH"},
  "pipeline": [
    {"filter": "Threshold", "params": {"field": "Type", "range": [0, 0]}}
  ],
  "output": {"type": "image", "render": {"field": "Velocity", "colormap": "Viridis"}}
}

Vocabulary → Tool Mapping

Expert says	Tool	Params
particles, 입자	render or cinematic_render	field="Velocity"
fluid only	execute_pipeline	Threshold(Type, 0, 0)
sloshing, 슬로싱	animate	mode="timesteps", field="Velocity"
wave, 파도	animate	mode="timesteps"
isosurface mesh	pv_isosurface	bi4_dir, output_dir