Tests of a proposed friction-factor equation have shown it to be accurate for calculating pressure loss in turbulent flow for a pipeline transporting a non-Newtonian fluid, such as most crude oils and ...

A new equation for accurate approximation of the Moody friction factor in the general gas-flow equation better approximates a wide range of Reynolds numbers than previously published equations. Other, ...

Factorising can be used to help us when rearranging formulae. If the term you are making the subject appears more than once, you will need to factorise at some point. Make \(\text{x}\) the subject of ...