On the frictional resistances to the flow of air through a pipe

Abstract

The research described in this paper was commenced by Dr. Grindley at the suggestion of Professor Osborne Reynolds in the Whitworth Engineering Laboratories, the Owens College, Manchester. Mr. Gibson continued the research after Dr. Grindley had left Manchester. The experiments were commenced with the object of determining, on a larger experimental scale than usual, the coefficient of viscosity of air and other gases and the variation of this coefficient with temperature.