MECHANICS OF SOLID BODY, HYDROMECHANICS AND GAS DYNAMICS IN CONIC SECTIONS AS A WAY FOR SOLUTION OF THE PROBLEMS PART 3: ON MECHANISM OF BUCKLING OF LONG BARS AND LAMINAR MOTION STABILITY OF REAL FLUID IN TUBE

S.L. Arsenjev

Physical-Technical Group

Dobroljubova Street, 2, 29, Pavlograd Town, Dnjepropetrovsk region, 51400 Ukraine

Structural analysis of strained and stressed state in axisymmetric solid body, elaborated by the author in his previous articles, allowed to elucidate mechanism of buckling of long rods under longitudinal compression and now, with due regard for specificity of a liquid motion in tube, to produce mechanism of transition of laminar flow into a turbulent. Thereby the author corroborates a correctness of the transition established by him in one of his previous article under “Euler – Poiseuille criterion” name.

PACS: 01.55.+b; 46.32.+x; 47.10.+g; 47.15.Cb; 47.27.Lx; 47.32.-y; 47.40.Dc; 47.60.+i; 47.85.Dh