A review of drop size measurement in fuel sprays

A detailed review of selected drop size measurement techniques capable of application to practical combustion systems is presented. Attention is restricted to those methods producing quantitative drop size frequency distributions and methods yielding mean spray characteristics are ignored. Comment on the relative merits and restrictions of each method, together with its applicability to particular situations, is made. Some of the techniques described can be applied to measurement of angle of flight and velocity of drops, in addition to their size, in both burning and isothermal sprays. Some indication of future technological advances in the field of drop size measurement is given.