Call number:
ZSP-202-256
In:
Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command, 256
Description / Table of Contents:
The flow of a compressible fluid through a deep layer of a porous medium with non-uniform permeability was analyzed. The volumetric behavior of the fluid was described first by the perfect gas law, then by the van der Waal's equation of state. Darcy's law was assumed to be valid. For illustration, the model of air flowing through a deep bed of naturally compacted snow was used to carry out numerical computation. The permeability of snow was considered as a function of depth. The nonlinear partial differential equation obtained by combining the continuity equation with Darcy's law was solved by finite difference technique. A time dependent exponential decay boundary condition was used which included the step-rise constant boundary condition as a limiting case. Pressure distributions in the porous medium calculated from the assumption of ideal gas and van der Waal's gas were compared. The data were presented in dimensionless variables.
Type of Medium:
Series available for loan
Pages:
iv, 13 Seiten
,
Illustrationen
Series Statement:
Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 256
URL:
http://acwc.sdp.sirsi.net/client/en_US/search/asset/1013563
URL:
https://hdl.handle.net/11681/5771
Language:
English
Note:
CONTENTS: Preface. - Abstract. - Introduction. - Theory. - Computation and results. - Conclusions. - Literature cited.
Location:
AWI Archive
Branch Library:
AWI Library
