CORRELATION TENSORS IN STATISTICAL HYDRODYNAMICS IN POROUS MEDIA

The author's statistical theory of flow through porous media, based upon an extremely simple model in which pressure fluctuations are being neglected, has been criticized because velocity correlation tensors had not been introduced as dynamical variables. It is shown in the present paper that the introduction of such variables is not useful in the author's theory. This is due to the particularly simple nature of the model employed and does not imply that the use of correlation tensors may not lead to something useful in other conceivable statistical theories.