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DIAGNOSTICS / 013
CFD Troubleshooter
Select the symptom you see and get an ordered diagnostic checklist. Change one class of cause at a time so the fix teaches you what was actually wrong.
ConvergenceMass balanceBoundary conditionsMesh
GENERAL RULE
Separate physical problems from numerical symptoms.
Bad units, impossible boundary conditions, broken geometry, poor mesh quality and inconsistent material properties can look like “solver instability.” Fixing the symptom with stronger damping may hide the actual setup error.
DIAGNOSTIC NEXT STEP
Use the symptom checklist, then move into the full case workflow.
The Technical Cases expand the advisor into detailed cause groups, diagnostic sequences and fix orders for model-specific CFD problems.