TITLE:
The New Determination of the Criteria of Compressibility and Incompressibility of Medium
AUTHORS:
Vladimir G. Kirtskhalia
KEYWORDS:
Hydrodynamics; Sound Wave; Entropy; Homogeneous Medium; Heterogeneity Medium; Compressibility; Incompressibility
JOURNAL NAME:
Journal of Modern Physics,
Vol.4 No.8,
August
13,
2013
ABSTRACT: It is shown that the criterion of incompressibility applicable to any medium,
contradicts to the real meaning of this term. On the basis of expression of speed
of sound in inhomogeneous medium and generalized equation of continuity of mass
obtained in papers [1,2] respectively, it is proved that so called internal gravitation waves
do not exist in nature. This concept appeared as a result of incorrect interpretation
of incompressibility of medium. Correct understanding of criteria of compressibility
or incompressibility leads to qualitatively new understanding of homogeneity or
heterogeneity of medium, in particular—only strongly inhomogeneous medium can be
incompressible while weakly inhomogeneous medium is always compressible. Besides,
it is shown that in inhomogeneous media additional terms are added to known hydrodynamic
(gas dynamic) correlations applicable to any medium which disappear at transfer
to homogeneous model of medium.