Some Aspects of Non-Darcy Behavior of Gas Flow In Wood

A. T. Wiley, E. T. Choong


A study was undertaken to determine if the Klinkenberg equation for gas flow through porous media could be applied to a wide variety of wood species. When the results proved negative, a second study was initiated to determine if the cause of the nonconformities could be traced to turbulence. The combined experiments indicated that neither molecular slippage, as described by the Klinkenberg equation, nor turbulence can adequately explain the reduction in apparent permeability with increasing mean pressure.


Hardwoods;softwoods;gas permeability;turbulent flow;molecular flow

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