The average stress in incompresible disperse flow


Prosperetti, A. (2004) The average stress in incompresible disperse flow. International Journal of Multiphase Flow, 30 (7-8). pp. 1036-1011. ISSN 0301-9322

[img] PDF
Restricted to UT campus only
: Request a copy
Abstract:An analysis of the average stress in a disperse flow consisting of equal spherical particles suspended in a fluid is presented. Other than incompressibility, no assumptions are made on the rheological nature of the fluid. In particular, the Reynolds number of the particle motion relative to the fluid is arbitrary. The use of ensemble averages permits the consideration of spatially non-uniform systems, which reveals features not identified before. In particular, it is shown that, in general, the average stress is not symmetric, even when there are no external couples acting on the particles. A quantity to be identified with the mixture pressure (including the particle contribution) is identified. The structure of the momentum equations for the fluid and particle phases is systematically derived. As an example, the case of particles suspended in a locally Stokes flow is considered.
Item Type:Article
Copyright:© 2004 Elsevier
Science and Technology (TNW)
Research Group:
Link to this item:
Official URL:
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page

Metis ID: 218699