Fluid phenomena influencing the design of zero-g experiments. Follow on study

The theory underlying the CHARTIME microgravity computing code is generalized to account for unsteady motion, rotation of the fluid frame with respect to the body frame, and mass diffusion. A liquid-gas interface is considered. Information needed to extend and/or adapt CHARTIME to problems not explicitly considered in the user guide is given. Details of the nature, type and implications of approximations are discussed. The conditions in which these approximations hold are identified. Modifications are suggested that must be made when these conditions are not met.