Abstract: Volume, like mass, momentum, energy, and entropy is an extensive property of a fluid. Like each of these, volume can be transported through a fluid by both convective and diffusive (molecular) mechanisms. This talk is concerned with the purely diffusive or molecular transport of volume (i.e., volume unaccompanied by mass), and its impact upon the transport of momentum and energy. This impact occurs via a coupling mechanism governed by Onsager reciprocity. In the case of compressible fluids, where volume changes occur, this gives rise to diffusiomechanical and mechanodiffusive effects, phenomena only vaguely hinted at in the transport phenomena literature.
Host: Prof. Eckart Meiburg, Mechanical Engineering