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 ...
IN his letter in NATURE of April 9, p. 527, Mr. H. F. P. Purday proposes to add yet another purely empirical formula to the many already proposed for representing the transfer of heat from a tube to a ...
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