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← ScienceWhich outcome results when excessive fluid velocity neglects viscosity within the Navier-Stokes equations?
A)Increased accuracy for viscous dominated flows.
B)Onset of potential flow instabilities.✓
C)Accurate modeling with complex wall-function models.
D)Overestimation of Reynolds stress components.
💡 Explanation
Because viscous effects stabilize flow, neglecting them in the Navier-Stokes equations leads to inaccurate predictions. The mechanism is inviscid instability. Therefore, it can then appear that turbulent behavior starts via potential flow instabilities, rather than accurately modeling true viscous behaviour.
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