#### Yuri A.Rylov

Institute for Problems in Mechanics, Russian Academy of Sciences,
101, bild.1 Vernadskii Ave., Moscow, 119526, Russia.

e-mail:
rylov@ipmnet.ru}

July 25, 2015

#### Abstract

Classical gas dynamic equations describe mean motion of stochastic gas mole\-cules. The reason of this stochasticity is interaction (collisions) between molecules. The wave function is the way to describe the gas dynamic equations \cite{R99}. If a gas molecules interact via some force field $\kappa ^{l}$, in terms of the wave function the gas dynamic equations have the form of the Klein-Gordon equation. Among two possible approaches: (i) QM as axiomatic conception and (ii) QM as a kind of gas dynamics the second approach is more preferable, because in the first approach the wave function looks as a strange axiomatic object, whereas in the second approach the wave function is a natural way of the gas dynamics description. Besides the second approach admits one to obtain a more complete description of stochastic particles.

(There is the  text of the paper in English and in Russian in the form of a postscript file)