Certified Professional CFD Engineer (CPCE)

When monitoring residuals during a steady-state CFD simulation, which condition best indicates convergence?

Residuals exceed 1e-2 for all transport equations Residuals plateau at a constant non-zero value and key monitor quantities stabilize Residuals oscillate periodically with decreasing amplitude Residuals drop to exactly zero for the continuity equation

Correct Answer:

Residuals plateau at a constant non-zero value and key monitor quantities stabilize

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