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Which consequence results when neglecting viscosity terms in equations modeling fluid flow inside a microfluidic device with extremely small dimensions?

A)Overestimated flow rate
B)Underestimated pressure drop
C)Turbulence is prematurely predicted
D)Heat transfer predictions will be accurate

💡 Explanation

Neglecting viscosity in microfluidic devices underestimates the damping of disturbances; thus, an artificial instability appears when using the 'Navier-Stokes Equations'. This premature turbulence is predicted because viscous forces stabilize the flow rather than inertia, and are dominant in microfluidics.

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