difference between darcy friction factor and fanning friction factor
Fanning friction factor This friction factor is one-fourth of the Darcy friction factor, so attention must be paid to note which one of these is meant in the "friction factor" chart or equation consulted. Of the two, the Fanning friction factor is the more commonly used by chemical engineers and those following the British convention.
Factor market In economics, a factor market refers to markets where services of the factors of production are bought and sold, such as the labor markets, the capital market, the market for raw materials, and the market for management or entrepreneurial resources.