Multiphase Science and Technology A Quarterly

ISSN for PRINT: 0276-1459

For Online Access

Best Paper Award Selection - Editorial Board Site

2003, Volume15

Issue 1-4

404 pages

DOI: 10.1615/MultScienTechn.v15.i1-4

Issue price - $560.00

A. Prosperetti
Department of Mechanical Engineering, The John Hopkins University, Baltimore, MD 21218, USA; and Department of Applied Physics, IMPACT, University of Twente, AE 7500 Enschede, The Netherlands

Averaged-equations models are and will remain a practical necessity for many years to come. In spite of their importance and the large body of literature devoted to their derivation and numerical solution, this is an area where very serious difficulties still exist. The root of the problems is that, in order to formulate a closed system of equations, part of the information lost upon averaging must be reintroduced in the equations. There is no consensus on the proper way to effect this step and most of the approaches tried to date have failed to produce a well-behaved mathematical model. In their turn, the mathematical difficulties of the models generate difficulties for the numerical methods used for their solution. The formulation of satisfactory averaged equations emerges therefore as one of the foremost problems in multiphase flow. It is suggested that a better approach to the derivation of averaged equations might be reliance on the results of direct numerical simulations, in addition to experiment.

DOI: 10.1615/MultScienTechn.v15.i1-4.160 Download article, 181-192 pages

Article price - $45.00

<< Previous article   Next article >>