The mean value of the fluctuations in pressure and pressure gradient in a turbulent fluid

Abstract

In the general systems of vortices represented by (1) the mean variation in pressureiswhereKis a number which varies between 1 and √2. When the vortices are confined to cubical partitions, the case most nearly analogous to that of free turbulence,K= 1·06, so that the conjecture which I made some years ago, thatwould be equal tois probably nearly correct.