AgentSkillsCN

DeepFlame Case Setup

使用化学反应、边界条件和求解器配置，搭建DeepFlame燃烧案例。适用于涉及dfLowMachFoam、dfSprayFoam、dfHighSpeedFoam等燃烧模拟的场景。

SKILL.md
--- frontmatter
name: DeepFlame Case Setup
description: Set up DeepFlame combustion cases with chemistry, boundary conditions, and solver configuration. Use for combustion simulations involving dfLowMachFoam, dfSprayFoam, dfHighSpeedFoam.

DeepFlame Case Setup

TUTORIAL-FIRST WORKFLOW

ALWAYS start by examining DeepFlame example cases:

  • •Use list and read tools on deepflame/examples/ directory
  • •Grep for: dfLowMachFoam, dfSprayFoam, dfHighSpeedFoam, CanteraTorchProperties
  • •Copy and adapt existing cases rather than building from scratch

CRITICAL SETUP STEPS

1. CanteraTorchProperties Configuration

Grep patterns: CanteraMechanismFile, torchModel, loadBalancing

  • •File: constant/CanteraTorchProperties
  • •ABSOLUTE PATHS ONLY for mechanism files (e.g., /full/path/mechanism.yaml)
  • •Never use relative paths - causes simulation failures

2. Species Configuration

Grep patterns: Ydefault, species, mass fraction

  • •0/Ydefault file provides default mass fractions for chemical species
  • •Essential for combustion cases with multiple species
  • •Usually set to 0 for species not explicitly defined

3. Boundary Conditions

Grep patterns: inlet, outlet, wall, fixedValue, zeroGradient

  • •Inlet: fixedValue for velocity, temperature, species mass fractions
  • •Outlet: zeroGradient or inletOutlet
  • •Walls: fixedValue for temperature, noSlip for velocity

4. Solver Selection

Grep patterns: dfLowMachFoam, dfSprayFoam, dfHighSpeedFoam

  • •dfLowMachFoam: Low Mach number combustion
  • •dfSprayFoam: Spray combustion with Lagrangian particles
  • •dfHighSpeedFoam: High-speed combustion flows

SETUP VERIFICATION PROTOCOL

ALWAYS set stopAt in system/controlDict to "writeNow" for initial testing:

  • •Ensures setup correctness before full production runs
  • •Test mesh generation, boundary conditions, initial convergence
  • •After successful test, set stopAt = "endTime" for production

TROUBLESHOOTING PATTERNS

Grep for error patterns:

  • •CanteraMechanismFile not found → Check absolute path in CanteraTorchProperties
  • •species not found → Verify Ydefault file and species names
  • •boundary condition error → Check inlet/outlet/wall BC consistency
  • •loadBalancing failed → Review CanteraTorchProperties loadBalancing section

ADDITIONAL RESOURCES

For detailed configuration options, search DeepFlame documentation and examples:

  • •Grep docs/ for: combustion, chemistry, turbulence, boundary conditions
  • •Examine deepflame/examples/ cases for complete working configurations
  • •Use paper_analysis tool on combustion CFD papers for advanced techniques