Question

The equation relating friction factor to Reynold number, f^-0.5 = 4 logₑ (Nʀₑ/√f)^-0.4, is called the __________ equation.

a.

Nikuradse

b.

Von-Karman

c.

Blausius

d.

Colebrook

Answer: (a).Nikuradse

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Q. The equation relating friction factor to Reynold number, f^-0.5 = 4 logₑ (Nʀₑ/√f)^-0.4, is called the __________ equation.

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