Flow through idealised particle arrays

Volker, Raymond Edward. (1966). Flow through idealised particle arrays Master's Thesis, , The University of Queensland.

       
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Author Volker, Raymond Edward.
Thesis Title Flow through idealised particle arrays
Institution The University of Queensland
Publication date 1966
Thesis type Master's Thesis
Total pages 147
Language eng
Subjects 0906 Electrical and Electronic Engineering
Formatted abstract
The problem of flow through porous media is discussed theoretically in terms of the fundamental Navier-Stokes equations. The breakdown of Darcy's law and the probable validity of a Forcheimer type relation for laminar flow is explained. It is predicted that the Forcheimer type relation will be applicable, although less accurate,
even for turbulent flow, but the values of the constant terms will have changed.

The very complex problem of flow through an actual medium is simplified experimentally by the use of a parallel plate model. Idealised particle arrays are used
to simulate the medium, and hydraulic gradients and velocities in the model are measured and correlated. Best fit curves of the Forcheimer type are shown to hold within the limits of experimental error.

The linear part of the head loss is evaluated theoretically on the consideration that it is due to viscous effects. The calculations are based on the assumption of parabolic velocity distributions in the laminar range and power law distributions in the turbulent range. The agreement between theory and experiment reinforces the general conclusions drawn from the fundamental flow equations.
Keyword Fluid dynamics.

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
 
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Created: Tue, 28 Sep 2010, 11:03:03 EST by Ning Jing on behalf of Social Sciences and Humanities Library Service