A survey of the fluid dynamic aspects of liquid-filled projectiles (Invited paper)

The history of investigations on liquid-filled projectiles is presented. The survey is dichotomized into steady state and spin-up; theory and data are discussed for each. The steady state is much more highly developed than spin-up; some impressive validations of the theory are discussed. The Stewartson Principle is stated and illustrated. The theories are asymptotic for Re tending to infinity, exact for small Re and numerical. For spin-up, proper treatment of the Ekman layers has not been given and the partially filled case requires theoretical and experimental work. Calculation of the inertial wave frequency during spin-up has been validated.