Start with clean interface surfaces, then add transfer variables gradually. Stability comes from clarity.
Tutorials
FSI Basics: From Interfaces to Data Transfer
Foundation steps for a reliable fluid-structure coupling.
Related posts
Simulation Smells: Early Warning Signals
Small cues that suggest a model is headed for instability.
Time Step Sanity Checks
A quick workflow for evaluating dt before expensive runs.
NaN Debugging in Coupled Solvers
Track the first invalid state before it propagates.