Which risk increases when assumptions behind Bernoulli's equation fail for viscous fluids?

💡 Explanation

Laminar flow destabilizes to turbulent flow when viscous effects violate Bernoulli's assumptions, promoting shear. Shear layer transition triggers the *Kelvin-Helmholtz instability* because viscous forces become dominant in dampening perturbations. Therefore, destabilization of laminar flow occurs, rather than stable calculation; turbulence dominates.

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