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Peculiarities of Sound Wave in Moving Medium
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作者 vladimir g. kirtskhalia 《Open Journal of Acoustics》 2014年第3期99-104,共6页
Generalized equation for linear gravity waves in moving medium has been obtained. Sound wave is considered as a particular case and it is shown that in inhomogeneous medium at rest it is propagated in full concordance... Generalized equation for linear gravity waves in moving medium has been obtained. Sound wave is considered as a particular case and it is shown that in inhomogeneous medium at rest it is propagated in full concordance with the Doppler law and principle of motion relativity, i.e. these laws are invariant with reference to properties of medium (homogeneity or inhomogeneity). In moving medium they are fair only in the case of its homogeneity. In strongly inhomogeneous moving medium, propagation of sound is absolutely impossible. 展开更多
关键词 Speed of Sound Atmosphere HOMOGENEOUS MEDIUM INHOMOGENEOUS MEDIUM Doppler’s Effect PRINCIPLE of RELATIVITY of Motion
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On Universality of Laws of Ideal Gas
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作者 vladimir g. kirtskhalia 《Journal of Modern Physics》 2015年第7期948-954,共7页
It is shown that in the Earth’s atmosphere, due to influence of the gravitational field, coefficient of thermal expansion depends on altitude. The altitude intervals for individual gases for which the laws of ideal g... It is shown that in the Earth’s atmosphere, due to influence of the gravitational field, coefficient of thermal expansion depends on altitude. The altitude intervals for individual gases for which the laws of ideal gases can be applied have been determined and it has been established that they are dependent on the adiabatic index and molar mass of these gases. 展开更多
关键词 IDEAL GASES INHOMOGENEOUS Medium The Earth’s ATMOSPHERE
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Mutual Influence of the Atmosphere and the Ocean under Wave Processes
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作者 vladimir g. kirtskhalia Konstantin R. Ninidze 《Journal of Modern Physics》 2021年第9期1346-1365,共20页
The article solves the problem of surface gravitational waves using the theory of tangential discontinuity between media: air-water. Using the improved equation of mass continuity and taking into account the atmospher... The article solves the problem of surface gravitational waves using the theory of tangential discontinuity between media: air-water. Using the improved equation of mass continuity and taking into account the atmosphere inhomogeneity in the gravitational field of the Earth, it is shown that during wave processes, these two media mutually influence each other, which explains the reason for the formation of a stormy condition over the ocean and the drop in atmospheric pressure before the storm. The mechanism of the formation of the “killer wave” has been established and thus the “greatest mystery of nature” has been solved. The scale of wind and tsunami wavelengths has been established. 展开更多
关键词 ATMOSPHERE OCEAN Gravitational Waves Waves of Wind Tsunami Waves Killer Wave
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Speed of Sound in Atmosphere of the Earth
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作者 vladimir g. kirtskhalia 《Open Journal of Acoustics》 2012年第2期80-85,共6页
It is demonstrated that contemporary conception on adiabaticity of sound in the Earth atmosphere is fair in sufficient approximation only for altitudes z ≤ 103 m. At higher altitudes adiabaticity of sound is violated... It is demonstrated that contemporary conception on adiabaticity of sound in the Earth atmosphere is fair in sufficient approximation only for altitudes z ≤ 103 m. At higher altitudes adiabaticity of sound is violated and essential dependence of its speed on altitude is revealed which is related to heterogeneity of the atmosphere in gravitation field of the Earth. It became possible to reveal the factor of gravity field due to the fact that in the equation of the state of atmosphere considered to be ideal gas, the entropy s is taken into consideration and is written down as ρ = (p, s) instead of generally accepted ρ = ρ(p) which is fair only for isentropic media and is not applicable to the Earth. Such approach enabled to determine that apart from adiabatic mechanism of generation of sound wave there exists isobaric one and exactly this mechanism leads to dependence of sound speed on altitude which is the same as dependence on density. 展开更多
关键词 SPEED of SOUND ATMOSPHERE COMPRESSIBILITY INCOMPRESSIBILITY
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The New Determination of the Criteria of Compressibility and Incompressibility of Medium
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作者 vladimir g. kirtskhalia 《Journal of Modern Physics》 2013年第8期1075-1079,共5页
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... 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. 展开更多
关键词 HYDRODYNAMICS Sound Wave Entropy HOMOGENEOUS MEDIUM HETEROGENEITY MEDIUM COMPRESSIBILITY INCOMPRESSIBILITY
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